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| To all our customers Regarding the change of names mentioned in the document, such as Hitachi Electric and Hitachi XX, to Renesas Technology Corp. The semiconductor operations of Mitsubishi Electric and Hitachi were transferred to Renesas Technology Corporation on April 1st 2003. These operations include microcomputer, logic, analog and discrete devices, and memory chips other than DRAMs (flash memory, SRAMs etc.) Accordingly, although Hitachi, Hitachi, Ltd., Hitachi Semiconductors, and other Hitachi brand names are mentioned in the document, these names have in fact all been changed to Renesas Technology Corp. Thank you for your understanding. Except for our corporate trademark, logo and corporate statement, no changes whatsoever have been made to the contents of the document, and these changes do not constitute any alteration to the contents of the document itself. Renesas Technology Home Page: http://www.renesas.com Renesas Technology Corp. Customer Support Dept. April 1, 2003 Cautions Keep safety first in your circuit designs! 1. Renesas Technology Corporation puts the maximum effort into making semiconductor products better and more reliable, but there is always the possibility that trouble may occur with them. Trouble with semiconductors may lead to personal injury, fire or property damage. Remember to give due consideration to safety when making your circuit designs, with appropriate measures such as (i) placement of substitutive, auxiliary circuits, (ii) use of nonflammable material or (iii) prevention against any malfunction or mishap. Notes regarding these materials 1. These materials are intended as a reference to assist our customers in the selection of the Renesas Technology Corporation product best suited to the customer's application; they do not convey any license under any intellectual property rights, or any other rights, belonging to Renesas Technology Corporation or a third party. 2. Renesas Technology Corporation assumes no responsibility for any damage, or infringement of any third-party's rights, originating in the use of any product data, diagrams, charts, programs, algorithms, or circuit application examples contained in these materials. 3. All information contained in these materials, including product data, diagrams, charts, programs and algorithms represents information on products at the time of publication of these materials, and are subject to change by Renesas Technology Corporation without notice due to product improvements or other reasons. It is therefore recommended that customers contact Renesas Technology Corporation or an authorized Renesas Technology Corporation product distributor for the latest product information before purchasing a product listed herein. The information described here may contain technical inaccuracies or typographical errors. Renesas Technology Corporation assumes no responsibility for any damage, liability, or other loss rising from these inaccuracies or errors. Please also pay attention to information published by Renesas Technology Corporation by various means, including the Renesas Technology Corporation Semiconductor home page (http://www.renesas.com). 4. When using any or all of the information contained in these materials, including product data, diagrams, charts, programs, and algorithms, please be sure to evaluate all information as a total system before making a final decision on the applicability of the information and products. Renesas Technology Corporation assumes no responsibility for any damage, liability or other loss resulting from the information contained herein. 5. Renesas Technology Corporation semiconductors are not designed or manufactured for use in a device or system that is used under circumstances in which human life is potentially at stake. Please contact Renesas Technology Corporation or an authorized Renesas Technology Corporation product distributor when considering the use of a product contained herein for any specific purposes, such as apparatus or systems for transportation, vehicular, medical, aerospace, nuclear, or undersea repeater use. 6. The prior written approval of Renesas Technology Corporation is necessary to reprint or reproduce in whole or in part these materials. 7. If these products or technologies are subject to the Japanese export control restrictions, they must be exported under a license from the Japanese government and cannot be imported into a country other than the approved destination. Any diversion or reexport contrary to the export control laws and regulations of Japan and/or the country of destination is prohibited. 8. Please contact Renesas Technology Corporation for further details on these materials or the products contained therein. H8S/2633 Series H8S/2633 HD6432633 H8S/2632 HD6432632 H8S/2631 HD6432631 H8S/2633 F-ZTATTM HD64F2633 H8S/2633R F-ZTATTM HD64F2633R H8S/2695 HD6432695 Hardware Manual ADE-602-165C Rev. 4.0 8/29/02 Hitachi, Ltd. Cautions 1. Hitachi neither warrants nor grants licenses of any rights of Hitachi's or any third party's patent, copyright, trademark, or other intellectual property rights for information contained in this document. Hitachi bears no responsibility for problems that may arise with third party's rights, including intellectual property rights, in connection with use of the information contained in this document. 2. Products and product specifications may be subject to change without notice. Confirm that you have received the latest product standards or specifications before final design, purchase or use. 3. Hitachi makes every attempt to ensure that its products are of high quality and reliability. However, contact Hitachi's sales office before using the product in an application that demands especially high quality and reliability or where its failure or malfunction may directly threaten human life or cause risk of bodily injury, such as aerospace, aeronautics, nuclear power, combustion control, transportation, traffic, safety equipment or medical equipment for life support. 4. Design your application so that the product is used within the ranges guaranteed by Hitachi particularly for maximum rating, operating supply voltage range, heat radiation characteristics, installation conditions and other characteristics. Hitachi bears no responsibility for failure or damage when used beyond the guaranteed ranges. Even within the guaranteed ranges, consider normally foreseeable failure rates or failure modes in semiconductor devices and employ systemic measures such as fail-safes, so that the equipment incorporating Hitachi product does not cause bodily injury, fire or other consequential damage due to operation of the Hitachi product. 5. This product is not designed to be radiation resistant. 6. No one is permitted to reproduce or duplicate, in any form, the whole or part of this document without written approval from Hitachi. 7. Contact Hitachi's sales office for any questions regarding this document or Hitachi semiconductor products. General Precautions on the Handling of Products 1. Treatment of NC Pins Note: Do not connect anything to the NC pins. The NC (not connected) pins are either not connected to any of the internal circuitry; or are used as test pins or to reduce noise. If something is connected to the NC pins, the operation of the LSI is not guaranteed. 2. Treatment of Unused Input Pins Note: Fix all unused input pins to high or low level. Generally, the input pins of CMOS products are high-impedance input pins. If unused pins are in their open states, intermediate levels are induced by noise in the vicinity, a passthrough current flows internally, and a malfunction may occur. 3. Processing before Initialization Note: When power is first supplied, the product's state is undefined. The states of internal circuits are undefined until full power is supplied throughout the chip and a low level is input on the reset pin. During the period where the states are undefined, the register settings and the output state of each pin are also undefined. Design your system so that it does not malfunction because of processing while it is in this undefined state. For those products which have a reset function, reset the LSI immediately after the power supply has been turned on. 4. Prohibition of Access to Undefined or Reserved Address Note: Access to undefined or reserved addresses is prohibited. The undefined or reserved addresses may be used to expand functions, or test registers may have been be allocated to these address. Do not access these registers: the system's operation is not guaranteed if they are accessed. Preface These LSIs are high-performance microcomputers with a 32-bit H8S/2600 CPU core and a variety of built-in peripheral functions necessary for a system configuration. The built-in peripheral devices include a 16-bit timer pulse unit (TPU), a programmable pulse generator (PPG)*1, a watchdog timer (WDT), 8-bit timers, a 14-bit PWM timer (PWM)*1, serial communication interfaces (SCI, IrDA)*1, an A/D converter, a D/A converter*1, and I/O ports. An I2C bus interface (IIC)*1 can also be incorporated as an option. An on-chip DMA controller (DMAC)* 1 and data transfer controller (DTC) perform high-speed data transfer without using the CPU, enabling use of these LSIs as embedded microcomputers in various advanced control systems. Two types of internal ROM-flash memory (F-ZTATTM*2) and mask ROM-are available, providing a quick and flexible response to conditions from ramp-up through full-scale volume production, even for applications with frequently changing specifications. Notes: *1 This function is not available in the H8S/2695. *2 F-ZTAT is a trademark of Hitachi, Ltd. Target Users: This manual was written for users who will be using the H8S/2633 Series, H8S/2633R, or H8S/2695 in the design of application systems. Readers are expected to understand the fundamentals of electrical circuits, logic circuits, and microcomputers. Objective: This manual was written to provide users with an explanation of the hardware functions and electrical characteristics of the H8S/2633 Series, H8S/2633R, and H8S/2695. Refer to the H8S/2600 Series, H8S/2000 Series Programming Manual for a detailed description of the instruction set. Notes on reading this manual: * In order to understand the overall functions of the chip Read the manual according to the contents. This manual is broadly divided into parts covering the CPU, system control functions, peripheral functions, and electrical characteristics. * In order to understand the details of the CPU's functions Refer to the H8S/2600 Series, H8S/2000 Series Programming Manual. Example: Bit order: The MSB is on the left and the LSB is on the right. Related Manuals: The latest versions of all related manuals are available from our website. Please ensure that you have the latest versions of all documents you require. http://www.hitachisemiconductor.com/ H8S/2633 Series manuals: Manual Title H8S/2633 Series Hardware Manual H8S/2600 Series, H8S/2000 Series Programming Manual ADE No. This manual ADE-602-083 Users manuals for development tools: Manual Title C/C++ Compiler, Assembler, Optimized Linkage Editor User's Manual Simulator Debugger (for Windows) User's Manual Hitachi Embedded Workshop User's Manual ADE No. ADE-702-247 ADE-702-037 ADE-702-201 Application Notes: Manual Title H8S Series Technical Q & A ADE No. ADE-502-059 List of Items Revised or Added for This Version Section Preface Comparison of H8S/2633, H8S/2632, H8S/2631, H8S/2633FZTAT, H8S/2633RFZTAT, and H8S/2695 Product Specifications 1.1 Overview 1 2 to 7 Table 1-1 Overview Page Item Description Replaced Newly added Note *2 added CPU, 14-bit PWM timer (PWM), memory, interrupt controller, clock pulse generator descriptions added Notes *, *1 and *2 added Package description added Product lineup description replaced Description added Figure 1-1 (b) H8S/2633R Internal Block Diagram Figure 1-1 (c) H8S/2695 Internal Block Diagram Description added Figure 1-2 (a) H8S/2633, H8S/2632, H8S/2631, H8S/2633F Pin Arrangement (TFP-120: Top View) Description added to Note * Newly added 1.2 Internal Block Diagram 8 9 10 1.3.1 Pin Arrangement 11 12 Figure 1-2 (b) H8S/2633R Pin Arrangement (TFP-120: Top View) Figure 1-3 (a) H8S/2633, H8S/2632, H8S/2631, H8S/2633F Pin Arrangement (FP-120B: Top View) Figure 1-3 (b) H8S/2633R Pin Arrangement (FP-128B: Top View) Figure 1-3 (c) H8S/2695 Pin Arrangement (FP-128B: Top View) Newly added 13 Package name amended from FP-128 to FP-128B Description added to Note * Newly added 15 16 1.3.2 Pin Functions in 17 Each Operating Mode Description added Table 1-2 (a) Pin Functions in Each Operating Mode (H8S/2633, H8S/2632, H8S/2631, H8S/2633F) Pin numbers amended from FP-128 to FP-128B 1 Section Page Item Description Note * added to FEW pin 1.3.2 Pin Functions in 18 Each Operating Mode 22 to 26 Table 1-2 (b) Pin Functions in Each Operating Mode (H8S/2633R) Table 1-2 (c) Pin Functions in Each Operating Mode (H8S/2695) Newly added 27 to 31 1.3.3 Pin Functions 32 38 to 43 44 to 48 Table 1-3 (b) Pin Functions (H8S/2633R) Table 1-3 (c) Pin Functions (H8S/2695) * High-speed operation Description added Newly added 2.1.1 Features 2.8.5 Bus-Released State 2.8.6 Power-Down State 3.2.2 System Control Register (SYSCR) 50 90 90 Description added Note * added Description added Notes *1 and *2 added 98 Bit 2--Manual Reset Selection Note * added Bit (MRESE) Bit 0--RAM Enable (RAME) 3.2.3 Pin Function Control Register (PFCR) 100 Bit 5--BUZZ Output Enable (BUZZE) Bit 4--LCAS Output Pin Selection Bit (LCASS) 3.5 Address Map in Each Operating Mode 103 Description added 16 kbytes amended to 16 Mbytes 104 Figure 3-1 Memory Map in Each Operating Mode in the H8S/2633, H8S/2633R Figure 3-4 Memory Map in Each Operating Mode in the H8S/2695 Table 4-2 Exception Vector Table Address map for H8S/2633R operating modes newly added Newly added 107 4.1.3 Exception Vector 111 Table 4.2.5 State of On-Chip 115 Supporting Modules after Reset Release Note *3 amended Note * added 2 Section 4.4 Interrupts Page 117 Item Description Note * added Figure 4-4 Interrupt Sources and Number of Interrupts 5.1.1 Features 121 * DTC and DMAC control Table 5-3 Correspondence between Interrupt Sources and IPR Settings Note *3 added Note * added 5.2.2 Interrupt Priority 125 Registers A to L, O (IPRA to IPRL, IPRO) 5.2.5 IRQ Status Register (ISR) 128 Bits 7 to 0--IRQ7 to IRQ0 flags Note * added (IRQ7F to IRQ0F) (n = 5 to 0) amended to (n = 7 to 0) IRQ7 to IRQ0 Interrupts IRQ5 to IRQ0 amended to IRQ7 to IRQ0 Notes *1 and *2 added H8S/2633R added Amend as follows: Interrupt Source column: "CMI" "Reserved" Origin of Interrupt Source column: "Refresh timer" "" Newly added 5.3.1 External Interrupts 5.3.2 Internal Interrupts 5.3.3 Interrupt Exception Handling Vector Table 129 130 131 to 134 Table 5-4(a) Interrupt Sources, Vector Addresses, and Interrupt Priorities (H8S/2633, H8S/2632, H8S/2631, H8S/2633R) 135 to 138 Table 5-4(b) Interrupt Sources, Vector Addresses, and Interrupt Priorities (H8S/2695) 5.6 DTC and DMAC Activation by Interrupt (DMAC and DTC functions are not available in the H8S/2695) 5.6.2 Block Diagram 5.6.3 Operation (DMAC and DTC functions are not available in the H8S/2695) 150 Title amended 151 152 Figure 5-9 Interrupt Control for DTC and DMAC Note * added Table 5-11 Interrupt Source Note *1 added Selection and Clearing Control (4) Notes on Use Note * added 3 Section Section 6 PC Break Controller (PBC) (This function is not available in the H8S/2695) 7.1 Overview 7.1.1 Features 7.1.2 Block Diagram 7.1.3 Pin Configuration 7.1.4 Register Configuration 7.2.4 Bus Control Register H (BCRH) Page 153 Item Description Title amended 165 165, 166 167 168 169 175 177 178 180 Bits 2 to 0--RAM Type Select (RMTS2 to RMTS0) Figure 7-1 Block Diagram of Bus Controller Table 7-1 Bus Controller Pins Table 7-2 Bus Controller Registers Note * added Note *3 added Note * added 7.2.5 Bus Control Register L (BCRL) 7.2.6 Pin Function Control Register (PFCR) 7.2.7 Memory Control 183 Register (MCR) 7.2.8 DRAM Control Register (DRAMCR) 185 Bits 2 to 0--Refresh Counter Clock Select (CKS2 to CKS0) 7.2.9 Refresh Timer Counter (RTCNT) 7.2.10 Refresh Time Constant Register (RTCOR) 7.3 Overview of Bus Control 7.3.2 Bus Specifications 188 to 192 189 (1) Bus Width Amended from ADWCR to ABWCR 187 Self-refresh amended to refresh control (RFSHE = 1) Note * added 4 Section 7.5 DRAM Interface (This function is not available in the H8S/2695) 7.6 DMAC Single Address Mode and DRAM Interface (This function is not available in the H8S/2695) 7.11 Bus Arbitration (DMAC and DTC functions are not available in the H8S/2695) 7.11.3 Bus Transfer Timing 7.12 Resets and the Bus Controller Section 8 DMA Controller (DMAC) (This function is not available in the H8S/2695) Section 9 Data Transfer Controller (DTC) (This function is not available in the H8S/2695) 9.2.9 Module Stop Control Register A (MSTPCRA) 9.5 Usage Notes Page 206 Item Description Title amended 223 238 239 239 241 Description of CPU amended Note * added Title amended 329 338 Description amended 359 Description added Title amended Section 10A I/O Ports 361 (H8S/2633, H8S/2632, H8S/2631, H8S/2633R) 10A.3.3 Pin Functions 384 Table 10A-5 Port 3 Pin Functions Last portion of selection method and pin functions table for P35/SCK1/SCK4/ SCL0/IRQ5 replaced Title amended 10A.5.1 Overview 389 Figure 10A-4 Port 7 Pin Functions 5 Section 10A.7.1 Overview 10A.12.3 Pin Functions Page 397 429, 430 Item Description 6-bit I/O port amended to 4-bit I/O port Table 10A-21 Port F Pin Functions TMTS0 amended to RMTS0 in note * to pins PF6/AS/LCAS and PF2/LCAS/WAIT/BREQ0 Newly added Note * added Section 10B I/O Ports 437 to 510 (H8S/2695) 11.1.1 Features 512 514 11.2.5 Timer Status Register (TSR) 545, 546 Table 11-1 TPU Functions Bit 3--Input Capture/Output Compare Flag D (TGFD), Bit 2--Input Capture/Output Compare Flag C (TGFC), Bit 1--Input Capture/Output Compare Flag B (TGFB), Bit 0--Input Capture/Output Compare Flag A (TGFA) 11.2.9 Timer Synchro 550 Register (TSYR) 11.4.2 Basic Functions 11.5.1 Interrupt Sources and Priorities 11.5.2 DTC/DMAC Activation (This function is not available in the H8S/2695) 11.6.1 Input/Output Timing 557 582 583 Figure 11-8 Periodic Counter Operation Table 11-13 TPU Interrupts Channels 0 to 4 amended to channels 0 to 5 Note * added Title amended 585 Output Compare Output Timing Status Flag Clearing Timing Figure 11-47 Timing for Status Flag Clearing by DTC or DMAC Activation Interrupts and Module Stop Mode (TIOC pin) added Note * added 11.6.2 Interrupt Signal 591 Timing 11.7 Usage Notes 601 The DTC amended to DMAC and DTC activation source and Note * added 6 Section Section 12 Programmable Pulse Generator (PPG) (This function is not available in the H8S/2695) Page 603 Item Description Title amended 12.2.1 Next Data 608 Enable Registers H and L (NDERH, NDERL) Section 13 8-Bit Timers (TMR) (This function is not available in the H8S/2695) 13.3.5 Operation with Cascaded Connection 13.4.1 Interrupt Sources and DTC Activation (The H8S/2695 does not have a DTC function or an 8-bit timer) Section 14 14-Bit PWM D/A (This function is not available in the H8S/2695) Section 15 Watchdog Timer (WDT1 is not available in the H8S/2695) 15.1.1 Features 629 NDERL Bits 7 to 0--Next Data Description added Enable 7 to 0 (NDER7 to NDER0) Title amended 645 646 Description amended Title amended 655 671 671 Note * added Figure 15-1 (b) Block Diagram Description added to note of WDT1 Table 15-1 WDT Pin TCSR1 Bit 6--Timer Mode Select (WT/IT) Bit 7--Overflow Flag (OVF) Note * added Note *1 added Note * added Description added 15.1.2 Block Diagram 673 15.1.3 Pin Configuration 674 15.2.2 Timer 675 Control/Status Register 676 (TCSR) 7 Section Page Item WDT1 Mode Select WDT0 TCSR Bit 4--Reserve bit WDT1 TCSR Bit 4--Prescaler Select (PSS) Description Note * added Note added 15.2.2 Timer 677 Control/Status Register (TCSR) 678 679 15.2.3 Reset 680 Control/Status Register (RSTCSR) 15.2.4 Pin Function Control Register (PFCR) 15.3.3 Timing of Setting Overflow Flag (OVF) 15.5.5 Internal Reset in Watchdog Timer Mode 15.5.6 OVF Flag Clearing in Interval Timer Mode Section 16 Serial Communication Interface (SCI, IrDA) (The H8S/2695 is not equipped with an IrDA function) 16.2.7 Serial Status Register (SSR) 681 Bits 2 to 0--Clock Select 2 to 0 (CKS2 to CKS0) WDT1 Input Clock Select Note *1 added Bit 7--Watchdog Overflow Flag TCSR amended to RSTCSR (WOVF) in bit table description Note * added to bit table Bit 5--BUZZ Output Enable (BUZZE) Note added Note * added 686 689 Description amended 690 Newly added 691 Title amended 706 707 709 Bit 7--Transmit Data Register Empty (TDRE) Bit 6--Receive Data Register Full (RDRF) Bit 2--Transmit End (TEND) Note * added 8 Section 16.2.8 Bit Rate Register (BRR) Page 713 Item Table 16-3 BRR Settings for Various Bit Rates (Asynchronous Mode) Table 16-4 BRR Settings for Various Bit Rates (Clocked Synchronous Mode) Table 16-5 Maximum Bit Rate for Each Frequency (Asynchronous Mode) Table 16-6 Maximum Bit Rate with External Clock Input (Asynchronous Mode) Table 16-7 Maximum Bit Rate with External Clock Input (Clocked Synchronous Mode) Description 28 MHz bit rate added 714 716 717 718 16.2.10 IrDA Control Register (IrCR) 16.3.2 Operation in Asynchronous Mode 720 730 Figure 16-5 Sample Serial Transmission Flowchart Figure 16-10 Sample Multiprocessor Serial Transmission Flowchart Figure 16-16 Sample Serial Transmission Flowchart Figure 16-18 Sample Serial Reception Flowchart Figure 16-20 Sample Flowchart of Simultaneous Serial Transmit and Receive Operations Note added Note * added 16.3.3 Multiprocessor 739 Communication Function 16.3.4 Operation in Clocked Synchronous Mode 747 750 752 16.4 SCI Interrupts 756 757 Table 16-13 SCI Interrupt Sources Restrictions on Use of DMAC or DTC Figure 16-25 Sample Flowchart for Mode Transition during Transmission Note *1 added Note * added 16.5 Usage Notes 761 762 9 Section 17.1.1 Features 17.2.2 Serial Status Register (SSR) 17.3.5 Clock Page 767 775 785 Item * Three interrupt sources Description Note * added Note * added to Bit 2 table Table 17-5 Examples of Bit Rate B (bit/s) for Various BRR Settings Table 17-6 Examples of BRR Settings for Bit Rate B (bit/s) Table 17-7 Maximum Bit Rate at Various Frequencies (Smart Card Interface Mode) 28 MHz bit rate added 786 17.3.6 Data Transfer Operations 17.4 Usage Notes Section 18 I 2C Bus Interface [Option] (This function is not available in the H8S/2695) 18.2.4 I2C Bus Mode Register (ICMR) 793, 794 797, 798 799 Data Transfer Operation by DMAC or DTC Retransfer Operations (Except Block Transfer Mode) Note * added Title amended 811 815 Bits 5 to 3--Serial Clock Select Transfer rate o = 28 MHz (CKS2 to CKS0) portion added Bit 3--Acknowledge Bit Judgement Selection (ACKE) Note * added 816 to 818 Bit 1--I 2C Bus Interface Interrupt Request Flag (IRIC) 820, 821 Bit 5--I 2C Bus Interface Continuous Transmission/Reception Interrupt Request Flag (IRTR) Newly added Replaced 18.3.2 Initial Setting 18.3.3 Master Transmit Operation 829 829 to 832 18.3.4 Master Receive 833 to 837 Operation 18.3.8 Operation Using the DTC 843 Table 18-5 Examples of Operation Using the DTC Note * added 10 Section Page Item Figure 18-14 Flowchart for Master Transmit Mode (Example) Figure 18-15 Flowchart for Master Receive Mode (Example) Description Deleted 18.3.9 Noise Canceler 18.4 Usage Notes 850 851 Table 18-7 Permissible SCL Rise Time (tSr) Values Table 18-8 I2C Bus Timing (with Maximum Influence of t Sr/tSf ) o = 28 MHz portion added to time indication [ns] o = 28 MHz portion added to time indication [ns] and values amended Newly added 854 to 857 * Notes on IRIC Flag Clearance when Using Wait Function * Notes on ICDR Reads and ICCR Access in Slave Transmit Mode * Notes on TRS Bit Setting in Slave Mode * Notes on ICDR Reads in Transmit Mode and ICDR Writes in Receive Mode * Notes on ACKE Bit and TRS Bit in Slave Mode 19.1.2 Block Diagram 860 19.2.2 A/D 864 Control/Status Register (ADCSR) 19.2.3 A/D Control Register (ADCR) 19.5 Interrupts 867 Figure 19-1 Block Diagram of A/D Converter Bit 7--A/D End Flag (ADF) Note * added Bits 7 and 6--Timer Trigger Select 1 and 0 (TRGS1, TRGS0) 876 Table 19-6 A/D Converter Interrupt Source Section 20 D/A Converter 21.1 Overview 883 891 to 893 Title amended H8S/2633R added after H8S/2633 and H8S/2695 added after H8S/2631 Note * added 21.2.1 System Control 892 Register (SYSCR) 11 Section 21.4 Usage Notes 22.1 Overview 22.1.2 Register Configuration 22.3 Operation 22.11 Flash Memory Programmer Mode 22.11.1 Socket Adapter Pin Correspondence Diagram Page 893 895 Item When Using the DTC Description Note * added Description amended BCRL amended to MDCR 898 938 939 Table 22-3 Operating Modes Note * description amended and ROM (Mask ROM Version) Table 22-13 Programmer Mode Pin Settings Figure 22-18 Socket Adapter Pin Correspondence Diagram Note * added Some pin names of H8S/2633 amended Notes *1 and *2 added Title amended Section 23A Clock 959 Pulse Generator (H8S/2633, H8S/2632, H8S/2631, H8S/2633F) 23A.2.1 System Clock 960 Control Register (SCKCR) Section 23B Clock Pulse Generator (H8S/2633R, H8S/2695) 24.1 Overview 971 to 981 Bit 7--o Clock Output Disable (PSTOP) Direct transition added to software standby mode and watch mode in description Newly added 983 984 985 Note * added Table 24-1 LSI Internal States Notes *4 and *5 added, in Each Mode Note *6 description amended Figure 24-1(a) Mode H8S/2633R added Transition Diagram (H8S/2633 Series, H8S/2633R) Figure 24-1(b) Mode Newly added Transition Diagram (H8S/2695) Table 24.2(a) Power-Down H8S/2633R added Mode Transition Conditions (H8S/2633 Series, H8S/2633R) Table 24.2(b) Power-Down Mode Transition Conditions (H8S/2695) Newly added 986 987 24.1.1 Register Configuration 988 Table 24-3 Power-Down Mode Registers Note * added Note *2 added 12 Section 24.2.1 Standby Control Register (SBYCR) Page 989 990 Item Bit 7--Software Standby (SSBY) Bits 6 to 4--Standby Timer Select 2 to 0 (STS2 to STS0) Description Note * added Note * added and Description amended (Setting Prohibited) added to Bits 6 to 4 table Bit 3--Output Port Enable (OPE) 24.2.2 System Clock Control Register (SCKCR) 991, 992 Note * added Bit 7--o Clock Output Disable Note * added (PSTOP), Bit 3--Frequency Multiplication Factor Switch Mode Select (STCS), Bits 2 to 0--System Clock Select (SCK2 to SCK0) H8S/2633R added to bit table for H8S/2633 Series H8S/2695 bit table and Note * added 24.2.3 Low-Power Control Register (LPWRCR) 992 993, 994 Bit 7--Direct Transfer On Flag Note *, *2 added (DTON) and Bit 6--Low Speed ON Flag (LSON) Note *1 added 24.2.4 Timer 995, 996 Control/Status Register (TCSR) 24.5.1 Module Stop Mode 999 1000 Table 24-4 MSTP Bits and Corresponding On-Chip Supporting Modules Note * added Note *2 added 24.5.2 Usage Notes 1001 Description of Reading I/O Ports in Subactive Mode added Table 24-5 Oscillation Stabilization Time Settings Under Standby Time, 16 states changed to 16 states (setting prohibited) Note * deleted. 1003 24.6.3 Setting Oscillation Stabilization Time after Clearing Software Standby Mode 13 Section 24.8 Watch Mode (This function is not available in the H8S/2695) to 24.11 Direct Transitions (This function not available in the H8S/2695) 24.8.3 Notes Page 1006 to 1009 Item Description Description (This function is not available in the H8S/2695) added after title 1007 (3) DMAC/DTC activation and Newly added sub-active mode/watch mode transition, (4) Interrupt sources and sub-active mode/watch mode transition 24.10.3 Usage Notes 24.12 o Clock Output Disabling Function 25.2 DC Characteristics 1009 Note * added 1012 Table 25-2 DC Characteristics (1) Conditions amended Output high voltage item amended Input leakage current test conditions amended 1013 Three-state leakage current (off state) test conditions amended Current dissipation standby mode typ. value amended from 0.01 to 1.0 1014 Reference power supply current test conditions amended Table 25-2 DC Characteristics (2) Preliminary deleted Conditions amended Note *2 PVcc value amended Notes *7 and *8 added 1015 1016 Input leakage current test conditions amended Three-state leakage current (off state) test conditions amended 1015 to 1017 14 Section 25.2 DC Characteristics Page 1017 Item Table 25-2 DC Characteristics (2) Description Analog power supply current test conditions amended Reference current test conditions amended 1018 1019 25.3.1 Clock Timing 1021 Table 25-3 Permissible Output Currents Table 25-4 Bus Drive Characteristics Table 25-5 Clock Timing Conditions amended and Notes *1 and *2 added Conditions amended Condition B clock oscillator settling time at reset (crystal) and clock oscillator settling time in software standby (crystal) min. values in table amended Conditions A and B amended Notes *1 and *2 added 25.3.2 Control Signal Timing 25.3.3 Bus Timing 1023 1025, 1026 1027 Table 25-6 Control Signal Timing Table 25-7 Bus Timing Figure 25-6 Basic Bus Timing Figure amended (Two-State Access) Table 25-8 DMAC Timing Conditions A and B amended Notes *1 and *2 added Table 25-9 Timing of On-Chip Supporting Modules Conditions amended Conditions A and B amended Full-scale error condition A maximum value amended from 7.0 to 7.5 Conditions A and B amended Conditions amended Newly added 25.3.4 DMAC Timing 25.3.5 Timing of OnChip Supporting Modules 25.4 A/D Conversion Characteristics 1034 1038, 1039 1044 1046 Table 25-10 I2C Bus Timing Table 25-11 A/D Conversion Characteristics 25.5 D/A Conversion Characteristics 25.6 Flash Memory Characteristics Section 26 Electrical Characteristics (H8S/2633R) Section 27 Electrical Characteristics (H8S/2695) 1047 1048 1051 to 1086 1087 to 1106 Table 25-12 D/A Conversion Characteristics Table 25-13 Flash Memory Characteristics 15 Section Page Item Table A-2 Instruction Codes Description CLRMAC, LDMAC, MAC, SHAL, and STMAC instructions amended H8S/2633R added to Addresses Note added Newly added A.2 Instruction Codes 1137 to 1144 B.1A Addresses (H8S/2633 Series, H8S/2633F, H8S/2633R) B.1B Addresses (H8S/2695) B.2 Functions 1184 1193 1194 to 1200 1215 SSR0--Serial Status Register 0 to SSR4--Serial Status Register 4 SBYCR--Standby Control Register SYSCR--System Control Register PFCR--Pin Function Control Register Bit table for SSR0 to SSR4 amended Note *3 added Note * added to standby timer select 2 to 0 table 1 under SYSCR amended to I Note * added to BUZZ output enable table 1217 1218 1222 1223 1258 LPWRCR--Low-Power Control Note *1 added to bit table Register TSR1--Timer Status Register 1 to TSR5--Timer Status Register 5 Note *2 added 1260, 1265 IPRA to IPRO, BCRL--Bus Control Register L 1266 to 1268, 1276 to 1289 Note * added Descriptions added MCR, DRAMCR, RTCNT, RTCOR, DMAWER, DMATCR, DMACR0A, DMACR0B, DMACR1A, DMACR1B, DMABCR, ICCR0, ICCR1, ICSR0, ICSR1, ICDR0, ICDR1, SARX0, SARX1, ICMR0, ICMR1, SAR0, and SAR1 RSTCSR--Reset Control/Status Register TCNT amended to RSTCSR in Note o = 28 MHz transfer rate for bits 5 to 3 and note * added TCSR1--Timer Control/Status Description added Register 1 1284 1288 1292 Appendix C I/O Port Block Diagrams 16 1299 Section C.6 Port A Block Diagram Page 1322 1323 1324 1325 Item Figure C-6 (a) Port A Block Diagram (Pin PA0) Figure C-6 (b) Port A Block Diagram (Pin PA1) Figure C-6 (c) Port A Block Diagram (Pin PA2) Figure C-6 (d) Port A Block Diagram (Pin PA3) Figure C-7 Port B Block Diagram (Pins PB0 to PB7) Figure C-8 (a) Port C Block Diagram (Pins PC0 to PC5) Figure C-8 (b) Port C Block Diagram (Pins PC6 and PC7) Figure C-9 Port D Block Diagram (Pins PD0 to PD7) Figure C-10 Port E Block Diagram (Pins PE0 to PE7) Description PAn amended to PA0 PAn amended to PA1 Figure replaced PAn amended to PA3 PB1 amended to PBn WDDRA amended to WDDRC, and WDRA amended to WDRC Legend amended Legend n = 1 to 7 amended to n = 0 to 7 C.7 Port B Block Diagram C.8 Port C Block Diagram 1326 1327 1328 C.9 Port D Block Diagram C.10 Port E Block Diagram C.13 Port 1 Block Diagram to C.24 Port G Block Diagram D.1 Port States in Each Mode 1329 1330 1343 to 1386 Newly added 1387 Table D-1 I/O Port States in Each Processing State (H8S/2633, H8S/2632, H8S/2631, H8S/2633F, H8S/2633R) 1388 Table D-1 I/O Port States in Each Processing State (H8S/2633, H8S/2632, H8S/2631, H8S/2633F, H8S/2633R) Table D-2 I/O Port States in Each Processing State (H8S/2695) Table F.1 H8S/2633 Series Product Code Lineup Description added H8S/2633R added LCAS under software standby mode amended to LCAS 1391 to 1394 Appendix F Product Code Lineup 1396 Newly added FP-128 amended to FP-128B H8S/2633R and H8S/2695 portion added Note * deleted 17 Section Appendix G Package Dimensions Page 1397 Item Description Description amended Figure G-1 TFP-120 Package Dimensions 1398 Figure G-2 FP-128B Package Dimensions Figures amended 18 Comparison of H8S/2633, H8S/2632, H8S/2631, H8S/2633F-ZTAT, H8S/2633RF-ZTAT, and H8S/2695 Product Specifications A comparative listing of the specifications of the H8S/2633, H8S/2632, H8S/2631, H8S/2633FZTAT, H8S/2633RF-ZTAT, and H8S/2695 is provided below. Comparison of H8S/2633, H8S/2632, H8S/2631, H8S/2633F-ZTAT, H8S/2633RF-ZTAT, and H8S/2695 Product Specifications H8S/2633 Series H8S/2633F-ZTAT Model HD64F2633F25 HD64F2633TE25 HD64F2633F16 HD64F2633TE16 16 kB 256 kB flash memory H'000000 H'01FFFF H'02FFFF H'03FFFF H8S/2633 HD6432633F25 HD6432633TE25 HD6432633F16 HD6432633TE16 16 kB 256 kB mask ROM On-chip ROM (256 kbytes) H8S/2632 HD6432632F25 HD6432632TE25 HD6432632F16 HD6432632TE16 12 kB 192 kB mask ROM On-chip ROM (192 kbytes) H8S/2631 H8S/2633R Series H8S/2633RF-ZTAT H8S/2695 HD6432631F25 HD64F2633RF28 HD6432695F28 HD6432631TE25 HD64F2633RTE28 HD6432631F16 HD6432631TE16 8 kB 128 kB mask ROM On-chip ROM (128 kbytes) 16 kB 256 kB flash memory On-chip ROM (256 kbytes) 8 kB 192 kB mask ROM RAM ROM ROM, RAM memory map On-chip ROM (192 kbytes) H'FFB000 H'FFC000 H'FFD000 H'FFEFBF On-chip RAM (16k-64)bytes On-chip RAM (12k-64)bytes On-chip RAM (8k-64)bytes On-chip RAM (16k-64)bytes On-chip RAM (8k-64)bytes H'FFFFC0 H'FFFFFF On-chip RAM (64 bytes) On-chip RAM (64 bytes) On-chip RAM (64 bytes) On-chip RAM (64 bytes) On-chip RAM (64 bytes) Input clock 2 to 25 MHz* (2 to 16 MHz for 16 MHz operation version) frequency range Operating 25 MHz operation version: 2 to 25 MHz frequency 16 MHz operation version: 2 to 16 MHz range 2 to 28 MHz* PVCC = 4.5 V to 5.5 V Operating 25 MHz operation version voltage PVCC = 4.5 V to 5.5 V, VCC = PLLVCC = 3.0 V to 3.6 V, AV CC = 4.5 V to 5.5 V, (Single power supply version lacking VCC and PLLV CC pins) Vref = 4.5 V to AVCC range 16 MHz operation version (low-voltage version) AVCC = 4.5 V to 5.5 V H8S/2633 Series H8S/2633F-ZTAT H8S/2633 H8S/2632 H8S/2631 H8S/2633R Series H8S/2633RF-ZTAT Vref = 4.5 V to AVCC H8S/2695 PVCC = 3.0 V to 5.5 V, VCC = PLLVCC = 3.0 V to 3.6 V [When using A/D or D/A] AVCC = 3.6 V to 5.5 V, Vref = 3.6 V to AVCC [When not using A/D or D/A] AVCC = 3.3 V to 5.5 V, Vref = 3.3 V to AVCC Power supply pins 2 power supply configurations, PVCC (5 V power supply) and V CC (3 V power supply), PLLVCC is 3 V power supply * PVCC (5 V power supply) single power supply configuration * Do not connect the VCL pin to the power supply. Instead, connect it to a ground via a 0.1 F power supply stabilizer capacitor (which should be mounted close to the pin). * Do not connect the VCC power supply to the VCL pin. * Note that the VCL pin is located in the same position as the VCC pin on the older H8S/2633 Series and H8S/2633F. External capacitor 0.1 F VCL (pin 11: FP128B) (pin 7: TFP120) VSS (pin 9: FP128B) (pin 5: TFP120) * There is no PLLVCC power supply pin. EXTAL V IH: V CC x 0.8 V to V CC + 0.3 V input level V : -0.3 V to V x 0.2 V IL CC (VCC = 3.0 V to 3.6 V) Interrupt sources External interrupts: NMLIRQ7 to IRQ0 Internal interrupts: 72 sources V IH: PVCC x 0.8 V to PVCC + 0.3 V V IL: -0.3 V to PVCC x 0.2 V (PV CC = 4.5 V to 5.5 V) External interrupts: NMLIRQ7 to IRQ0 Internal interrupts: 49 sources 32 kHz oscillator Yes (subactive mode, subsleep mode, and watch mode supported) No (subactive mode, subsleep mode, and watch mode not supported) OSC1 OSC1 OSC2 OSC2 Open Method of fixing OSC pin when 32 kHz oscillator not used VCC power supply GND Open No 32 kHz oscillator. The HD6432695 is the HD6432633 Series. The pins corresponding to OSC1 and OSC2 in the HD64F2633 are NC pins in the HD6432695. H8S/2633 Series H8S/2633F-ZTAT H8S/2633 H8S/2632 H8S/2631 H8S/2633R Series H8S/2633RF-ZTAT H8S/2695 No IIC function. Pins 34 and 35 output is CMOS output. Properties Output of pins 34 and 35 is normally NMOS push-pull output, but is NMOS open-drain output of multiwhen the IIC bus drive function is selected. use pins (pins 34 and 35) RecomSee section 23A, Clock Oscillator (H8S/2633, H8S/2632, H8S/2631, mended H8S/2633F). external PLL circuit PC break controller (PBC) DRAM interface DMA controller (DMAC) Data transfer controller (DTC) I/O ports Yes See section 23B, Clock Oscillator (H8S/2633R, H8S/2695). No Yes Yes No No Yes No Functions of H8S/2633, H8S/2632, H8S/2631, H8S/2633F, and H8S/2633R are identical. See section 10A, I/O Ports, for details. Some functions of the H8S/2633 Series have been eliminated. See section 10B, I/O Ports, for details. No Programmable pulse generator (PPG) 8-bit timer (TMR) 14-bit PWM timer WDTI IrDA I2C bus interface (IIC) D/A converter Yes [option] Yes Yes Yes No No Yes Yes Yes No No No Yes No Note: * The input clock frequency range is 2 to 25 MHz (2 to 16 MHz on 16 MHz operation version: H8S/2633 Series only). For 25 MHz < 28 MHz operation on the H8S/2633R and H8S/2695, make sure to use a PLL with a multiplying factor set to x2 or x4 ( = operating frequency). Notes on H8S/2695 1. Notes on P35 Pin Functions (SCK1, SCK4) in H8S/2695 The following restrictions apply to the functions of P35 (SCK1, SCK4) in the H8S/2695. The functions indicated by *2 below cannot be used in the H8S/2695, and these combinations must not be set. (1) P35 Pin Functions in H8S/2633 Series and H8S/2633R ICE CKE1(SCI1) CKE1(SCI4) C/A(SCI1) C/A(SCI4) CKE0(SCI1) CKE0(SCI4) P35DDR Pin function 0 P35 input pin 0 0 1 P35 output pin*1 0 0 0, 1, 1 1, 0, 1 SCK1/SCK4 output pin*1 0 0 1 1 SCK1/SCK4 output pin*1 0 0, 1, 1 1, 0, 1 SCK1/SCK4 input pin 1 0 0 0 0 0 0 SCL0 input/output pin IRQ5 input (2) P35 Pin Functions in H8S/2695 CKE1(SCI1) CKE1(SCI4) C/A(SCI1) C/A(SCI4) CKE0(SCI1) CKE0(SCI4) P35DDR Pin function 0 P35 input pin 0 0 1 P35 output pin 0 0 0, 1, 1 1, 0, 1 SCK1/SCK4 output pin 0 0 1 1 SCK1/SCK4 output pin IRQ5 input 0*2 1*2 1*2 0*2 1 1 0*3 SCK1/SCK4 input pin Notes: *1 The output type is normally NMOS push-pull output, but NMOS open-drain output when P35ODR = 1. *2 These combinations must not be set. *3 If SCK1 and SCK4 are used as input (clock input) pins on the H8S/2695, P35DDR must be cleared to 0. 2. Notes on H8S/2695 Development (Using H8S/2633 Emulator Chip) The H8S/2695 is not equipped with an I2C bus function and output from pins 34 and 35 is CMOS output (unless P34ODR or P35ODR is set to 1, respectively). These pins are used for NMOS push-pull output on the H8S/2633 emulator chip, so the output characteristics of these pins are different than is the case with the H8S/2695. If it is necessary to use pins 34 and 35 for CMOS output, use an appropriate resistance to pull up pins 34 and 35 of the H8S/2633 emulator chip. Manual Reference Pages H8S/2633 Series H8S/2633F-ZTAT RAM ROM H8S/2633 H8S/2632 H8S/2631 H8S/2633R Series H8S/2633RF-ZTAT H8S/2695 See section 21, RAM See section 22, ROM Interrupt Controller See section 5, Interrupt Controller (INT) PC Break Controller See section 6, PC Break Controller (PBC) (PBC) DRAM Interface DMA Controller (DMAC) Data Transfer Controller (DTC) I/O Ports 16-Bit Timer Pulse Unit (TPU) Programmable Pulse Generator (PPG) See section 7, Bus Controller See section 8, DMA Controller (DMAC) See section 9, Data Transfer Controller (DTC) See section 10A, I/O Ports (H8S/2633, H8S/2632, H8S/2631, H8S/2633R) See section 11, 16-Bit Timer Pulse Unit (TPU) See section 12, Programmable Pulse Generator (PPG) -- -- -- -- -- See section 10B, I/O Ports (H8S/2695) 8-Bit Timers (TMR) See section 13, 8-Bit Timers (TMR) 14-Bit PWM D/A WDT0 WDT1 Serial Communication Interface (SCI) IrDA Smart Card Interface I2C Bus Interface(IIC) A/D Converter D/A Converter 32 kHz oscillator See section 14, 14-Bit PWM D/A See section 15, Watchdog Timer See section 15, Watchdog Timer See section 16, Serial Communication Interface (SCI, IrDA) -- -- -- See section 16, Serial Communication Interface (SCI, IrDA) See section 17, Smart Card Interface See section 18, I2C Bus Interface (IIC) See section 19, A/D Converter See section 20, D/A Converter See section 23A, Clock Pulse Generator (H8S/2633, H8S/2632, H8S/2631, H8S/2633F) See section 23B, Clock Pulse Generator (H8S/2633R, H8S/2695) -- -- -- -- Clock Pulse Generator EXTAL input level See section 23A, Clock Pulse Generator (H8S/2633, H8S/2632, H8S/2631, H8S/2633F) See section 25, Electrical Characteristics (H8S/2633, H8S/2632, H8S/2631, H8S/2633F) See section 23B, Clock Pulse Generator (H8S/2633R, H8S/2695) See section 26, Electrical Characteristics (H8S/2633R) See section 27, Electrical Characteristics (H8S/2695) H8S/2633 Series H8S/2633F-ZTAT H8S/2633 H8S/2632 H8S/2631 H8S/2633R Series H8S/2633RF-ZTAT H8S/2695 Recommended See section 23A, Clock Pulse Generator (H8S/2633, external PLL circuit H8S/2632, H8S/2631, H8S/2633F) Interrupt processing See section 5, Interrupt Controller vector table See table 5.4(a) See section 23B, Clock Pulse Generator (H8S/2633R, H8S/2695) See section 5, Interrupt Controller See table 5.4(b) Contents Section 1 1.1 1.2 1.3 Overview .......................................................................................................... Overview........................................................................................................................... Internal Block Diagram .................................................................................................... Pin Description ................................................................................................................. 1.3.1 Pin Arrangement ................................................................................................. 1.3.2 Pin Functions in Each Operating Mode............................................................... 1.3.3 Pin Functions....................................................................................................... CPU.................................................................................................................... 1 1 8 11 11 16 31 49 49 49 50 51 52 52 57 58 58 59 60 62 63 63 65 66 66 67 69 76 78 78 81 85 85 86 87 90 90 90 i Section 2 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 Overview........................................................................................................................... 2.1.1 Features ............................................................................................................... 2.1.2 Differences between H8S/2600 CPU and H8S/2000 CPU ................................. 2.1.3 Differences from H8/300 CPU............................................................................ 2.1.4 Differences from H8/300H CPU......................................................................... CPU Operating Modes ..................................................................................................... Address Space................................................................................................................... Register Configuration ..................................................................................................... 2.4.1 Overview ............................................................................................................. 2.4.2 General Registers................................................................................................. 2.4.3 Control Registers................................................................................................. 2.4.4 Initial Register Values ......................................................................................... Data Formats..................................................................................................................... 2.5.1 General Register Data Formats ........................................................................... 2.5.2 Memory Data Formats......................................................................................... Instruction Set................................................................................................................... 2.6.1 Overview ............................................................................................................. 2.6.2 Instructions and Addressing Modes .................................................................... 2.6.3 Table of Instructions Classified by Function....................................................... 2.6.4 Basic Instruction Formats.................................................................................... Addressing Modes and Effective Address Calculation .................................................... 2.7.1 Addressing Mode................................................................................................. 2.7.2 Effective Address Calculation............................................................................. Processing States .............................................................................................................. 2.8.1 Overview ............................................................................................................. 2.8.2 Reset State ........................................................................................................... 2.8.3 Exception-Handling State ................................................................................... 2.8.4 Program Execution State ..................................................................................... 2.8.5 Bus-Released State .............................................................................................. 2.8.6 Power-Down State............................................................................................... Basic Timing..................................................................................................................... 2.9.1 Overview ............................................................................................................. 2.9.2 On-Chip Memory (ROM, RAM) ........................................................................ 2.9.3 On-Chip Supporting Module Access Timing...................................................... 2.9.4 External Address Space Access Timing.............................................................. 2.10 Usage Note ....................................................................................................................... 2.10.1 TAS Instruction ................................................................................................... 2.9 91 91 91 93 94 94 94 95 95 95 96 96 96 97 99 102 102 102 102 102 103 103 Section 3 3.1 MCU Operating Modes ............................................................................... 3.2 3.3 3.4 3.5 Overview........................................................................................................................... 3.1.1 Operating Mode Selection................................................................................... 3.1.2 Register Configuration ........................................................................................ Register Descriptions........................................................................................................ 3.2.1 Mode Control Register (MDCR)......................................................................... 3.2.2 System Control Register (SYSCR) ..................................................................... 3.2.3 Pin Function Control Register (PFCR) ............................................................... Operating Mode Descriptions........................................................................................... 3.3.1 Mode 4................................................................................................................. 3.3.2 Mode 5................................................................................................................. 3.3.3 Mode 6................................................................................................................. 3.3.4 Mode 7................................................................................................................. Pin Functions in Each Operating Mode............................................................................ Address Map in Each Operating Mode............................................................................. Section 4 4.1 Exception Handling....................................................................................... 109 109 109 110 110 112 112 112 113 115 115 116 117 118 119 120 4.2 4.3 4.4 4.5 4.6 4.7 Overview........................................................................................................................... 4.1.1 Exception Handling Types and Priority .............................................................. 4.1.2 Exception Handling Operation ............................................................................ 4.1.3 Exception Vector Table....................................................................................... Reset ................................................................................................................................. 4.2.1 Overview ............................................................................................................. 4.2.2 Types of Reset ..................................................................................................... 4.2.3 Reset Sequence.................................................................................................... 4.2.4 Interrupts after Reset ........................................................................................... 4.2.5 State of On-Chip Supporting Modules after Reset Release ................................ Traces ............................................................................................................................... Interrupts........................................................................................................................... Trap Instruction ................................................................................................................ Stack Status after Exception Handling ............................................................................. Notes on Use of the Stack................................................................................................. Section 5 5.1 ii Interrupt Controller ....................................................................................... 121 Overview........................................................................................................................... 121 5.2 5.3 5.4 5.5 5.6 5.1.1 Features ............................................................................................................... 5.1.2 Block Diagram..................................................................................................... 5.1.3 Pin Configuration ................................................................................................ 5.1.4 Register Configuration ........................................................................................ Register Descriptions........................................................................................................ 5.2.1 System Control Register (SYSCR) ..................................................................... 5.2.2 Interrupt Priority Registers A to L, O (IPRA to IPRL, IPRO) ............................ 5.2.3 IRQ Enable Register (IER) ................................................................................. 5.2.4 IRQ Sense Control Registers H and L (ISCRH, ISCRL).................................... 5.2.5 IRQ Status Register (ISR) ................................................................................... Interrupt Sources............................................................................................................... 5.3.1 External Interrupts............................................................................................... 5.3.2 Internal Interrupts ................................................................................................ 5.3.3 Interrupt Exception Handling Vector Table ........................................................ Interrupt Operation ........................................................................................................... 5.4.1 Interrupt Control Modes and Interrupt Operation ............................................... 5.4.2 Interrupt Control Mode 0..................................................................................... 5.4.3 Interrupt Control Mode 2..................................................................................... 5.4.4 Interrupt Exception Handling Sequence ............................................................. 5.4.5 Interrupt Response Times.................................................................................... Usage Notes ...................................................................................................................... 5.5.1 Contention between Interrupt Generation and Disabling.................................... 5.5.2 Instructions that Disable Interrupts ..................................................................... 5.5.3 Times when Interrupts are Disabled ................................................................... 5.5.4 Interrupts during Execution of EEPMOV Instruction......................................... DTC and DMAC Activation by Interrupt (DMAC and DTC functions are not available in the H8S/2695) ..................................... 5.6.1 Overview ............................................................................................................. 5.6.2 Block Diagram..................................................................................................... 5.6.3 Operation (DMAC and DTC functions are not available in the H8S/2695)....... 121 122 123 123 124 124 125 126 127 128 129 129 130 130 139 139 142 144 146 147 148 148 149 149 150 150 150 150 151 Section 6 6.1 PC Break Controller (PBC) (This function is not available in the H8S/2695) ................................. 153 153 153 154 155 155 155 156 156 158 158 iii 6.2 Overview........................................................................................................................... 6.1.1 Features ............................................................................................................... 6.1.2 Block Diagram..................................................................................................... 6.1.3 Register Configuration ........................................................................................ Register Descriptions........................................................................................................ 6.2.1 Break Address Register A (BARA) .................................................................... 6.2.2 Break Address Register B (BARB)..................................................................... 6.2.3 Break Control Register A (BCRA) ..................................................................... 6.2.4 Break Control Register B (BCRB) ...................................................................... 6.2.5 Module Stop Control Register C (MSTPCRC)................................................... 6.3 Operation .......................................................................................................................... 6.3.1 PC Break Interrupt Due to Instruction Fetch....................................................... 6.3.2 PC Break Interrupt Due to Data Access .............................................................. 6.3.3 Notes on PC Break Interrupt Handling ............................................................... 6.3.4 Operation in Transitions to Power-Down Modes ............................................... 6.3.5 PC Break Operation in Continuous Data Transfer .............................................. 6.3.6 When Instruction Execution is Delayed by One State ........................................ 6.3.7 Additional Notes ................................................................................................. 159 159 159 160 160 161 162 163 Section 7 7.1 Bus Controller................................................................................................. 165 165 165 167 168 169 170 170 171 172 175 178 180 183 185 187 187 188 188 189 190 191 192 193 193 193 195 196 204 206 206 206 207 7.2 7.3 7.4 7.5 Overview........................................................................................................................... 7.1.1 Features ............................................................................................................... 7.1.2 Block Diagram..................................................................................................... 7.1.3 Pin Configuration ................................................................................................ 7.1.4 Register Configuration ........................................................................................ Register Descriptions........................................................................................................ 7.2.1 Bus Width Control Register (ABWCR) .............................................................. 7.2.2 Access State Control Register (ASTCR)............................................................. 7.2.3 Wait Control Registers H and L (WCRH, WCRL)............................................. 7.2.4 Bus Control Register H (BCRH)......................................................................... 7.2.5 Bus Control Register L (BCRL).......................................................................... 7.2.6 Pin Function Control Register (PFCR) ............................................................... 7.2.7 Memory Control Register (MCR) ....................................................................... 7.2.8 DRAM Control Register (DRAMCR)................................................................. 7.2.9 Refresh Timer Counter (RTCNT) ....................................................................... 7.2.10 Refresh Time Constant Register (RTCOR)......................................................... Overview of Bus Control.................................................................................................. 7.3.1 Area Partitioning ................................................................................................. 7.3.2 Bus Specifications ............................................................................................... 7.3.3 Memory Interfaces............................................................................................... 7.3.4 Interface Specifications for Each Area................................................................ 7.3.5 Chip Select Signals.............................................................................................. Basic Bus Interface........................................................................................................... 7.4.1 Overview ............................................................................................................. 7.4.2 Data Size and Data Alignment ............................................................................ 7.4.3 Valid Strobes ....................................................................................................... 7.4.4 Basic Timing ....................................................................................................... 7.4.5 Wait Control ........................................................................................................ DRAM Interface (This function is not available in the H8S/2695).............................................................. 7.5.1 Overview ............................................................................................................. 7.5.2 Setting up DRAM Space ..................................................................................... 7.5.3 Address Multiplexing .......................................................................................... iv 7.5.4 Data Bus .............................................................................................................. 7.5.5 DRAM Interface Pins .......................................................................................... 7.5.6 Basic Timing ....................................................................................................... 7.5.7 Precharge State Control....................................................................................... 7.5.8 Wait Control ........................................................................................................ 7.5.9 Byte Access Control ............................................................................................ 7.5.10 Burst Operation ................................................................................................... 7.5.11 Refresh Control ................................................................................................... 7.6 DMAC Single Address Mode and DRAM Interface (This function is not available in the H8S/2695).............................................................. 7.6.1 DDS=1................................................................................................................. 7.6.2 DDS=0................................................................................................................. 7.7 Burst ROM Interface ........................................................................................................ 7.7.1 Overview ............................................................................................................. 7.7.2 Basic Timing ....................................................................................................... 7.7.3 Wait Control ........................................................................................................ 7.8 Idle Cycle.......................................................................................................................... 7.8.1 Operation ............................................................................................................. 7.8.2 Pin States in Idle Cycle ....................................................................................... 7.9 Write Data Buffer Function .............................................................................................. 7.10 Bus Release....................................................................................................................... 7.10.1 Overview ............................................................................................................. 7.10.2 Operation ............................................................................................................. 7.10.3 Pin States in External Bus Released State........................................................... 7.10.4 Transition Timing................................................................................................ 7.10.5 Notes.................................................................................................................... 7.11 Bus Arbitration (DMAC and DTC functions are not available in the H8S/2695) ..................................... 7.11.1 Overview ............................................................................................................. 7.11.2 Operation ............................................................................................................. 7.11.3 Bus Transfer Timing ........................................................................................... 7.12 Resets and the Bus Controller........................................................................................... 207 208 208 210 211 213 215 219 223 223 224 225 225 225 227 228 228 232 233 234 234 234 235 236 237 238 238 238 239 239 Section 8 8.1 DMA Controller (DMAC) (This function is not available in the H8S/2695) ................................. 241 241 241 242 243 245 246 247 248 v 8.2 Overview........................................................................................................................... 8.1.1 Features ............................................................................................................... 8.1.2 Block Diagram..................................................................................................... 8.1.3 Overview of Functions ........................................................................................ 8.1.4 Pin Configuration ................................................................................................ 8.1.5 Register Configuration ........................................................................................ Register Descriptions (1) (Short Address Mode) ............................................................. 8.2.1 Memory Address Registers (MAR)..................................................................... 8.3 8.4 8.5 8.6 8.7 8.2.2 I/O Address Register (IOAR).............................................................................. 8.2.3 Execute Transfer Count Register (ETCR)........................................................... 8.2.4 DMA Control Register (DMACR)...................................................................... 8.2.5 DMA Band Control Register (DMABCR).......................................................... Register Descriptions (2) (Full Address Mode) ............................................................... 8.3.1 Memory Address Register (MAR) ...................................................................... 8.3.2 I/O Address Register (IOAR).............................................................................. 8.3.3 Execute Transfer Count Register (ETCR)........................................................... 8.3.4 DMA Control Register (DMACR)...................................................................... 8.3.5 DMA Band Control Register (DMABCR).......................................................... Register Descriptions (3) .................................................................................................. 8.4.1 DMA Write Enable Register (DMAWER) ......................................................... 8.4.2 DMA Terminal Control Register (DMATCR).................................................... 8.4.3 Module Stop Control Register (MSTPCR) ......................................................... Operation .......................................................................................................................... 8.5.1 Transfer Modes ................................................................................................... 8.5.2 Sequential Mode.................................................................................................. 8.5.3 Idle Mode............................................................................................................. 8.5.4 Repeat Mode ....................................................................................................... 8.5.5 Single Address Mode .......................................................................................... 8.5.6 Normal Mode....................................................................................................... 8.5.7 Block Transfer Mode........................................................................................... 8.5.8 DMAC Activation Sources ................................................................................. 8.5.9 Basic DMAC Bus Cycles .................................................................................... 8.5.10 DMAC Bus Cycles (Dual Address Mode) .......................................................... 8.5.11 DMAC Bus Cycles (Single Address Mode) ....................................................... 8.5.12 Write Data Buffer Function................................................................................. 8.5.13 DMAC Multi-Channel Operation ....................................................................... 8.5.14 Relation between External Bus Requests, Refresh Cycles, the DTC, and the DMAC .................................................................................................... 8.5.15 NMI Interrupts and DMAC................................................................................. 8.5.16 Forced Termination of DMAC Operation........................................................... 8.5.17 Clearing Full Address Mode ............................................................................... Interrupts........................................................................................................................... Usage Notes ...................................................................................................................... 249 249 250 254 259 259 259 260 261 265 270 270 272 273 274 274 276 279 282 286 289 292 298 301 302 310 316 317 319 320 321 322 323 324 Section 9 9.1 Data Transfer Controller (DTC) (This function is not available in the H8S/2695) ................................. 329 329 329 330 331 332 9.2 vi Overview........................................................................................................................... 9.1.1 Features ............................................................................................................... 9.1.2 Block Diagram..................................................................................................... 9.1.3 Register Configuration ........................................................................................ Register Descriptions........................................................................................................ 9.3 9.4 9.5 9.2.1 DTC Mode Register A (MRA)............................................................................ 9.2.2 DTC Mode Register B (MRB) ............................................................................ 9.2.3 DTC Source Address Register (SAR) ................................................................. 9.2.4 DTC Destination Address Register (DAR) ......................................................... 9.2.5 DTC Transfer Count Register A (CRA) ............................................................. 9.2.6 DTC Transfer Count Register B (CRB) .............................................................. 9.2.7 DTC Enable Registers (DTCER) ........................................................................ 9.2.8 DTC Vector Register (DTVECR) ....................................................................... 9.2.9 Module Stop Control Register A (MSTPCRA)................................................... Operation .......................................................................................................................... 9.3.1 Overview ............................................................................................................. 9.3.2 Activation Sources............................................................................................... 9.3.3 DTC Vector Table ............................................................................................... 9.3.4 Location of Register Information in Address Space ........................................... 9.3.5 Normal Mode....................................................................................................... 9.3.6 Repeat Mode ....................................................................................................... 9.3.7 Block Transfer Mode........................................................................................... 9.3.8 Chain Transfer..................................................................................................... 9.3.9 Operation Timing ................................................................................................ 9.3.10 Number of DTC Execution States....................................................................... 9.3.11 Procedures for Using DTC .................................................................................. 9.3.12 Examples of Use of the DTC............................................................................... Interrupts........................................................................................................................... Usage Notes ...................................................................................................................... 332 334 335 335 335 336 336 337 338 339 339 341 342 346 347 348 349 351 352 353 355 356 359 359 Section 10A I/O Ports (H8S/2633, H8S/2632, H8S/2631, H8S/2633R)........... 361 10A.1 10A.2 Overview ....................................................................................................................... Port 1 ............................................................................................................................. 10A.2.1 Overview ....................................................................................................... 10A.2.2 Register Configuration .................................................................................. 10A.2.3 Pin Functions................................................................................................. 10A.3 Port 3 ............................................................................................................................. 10A.3.1 Overview ....................................................................................................... 10A.3.2 Register Configuration .................................................................................. 10A.3.3 Pin Functions................................................................................................. 10A.4 Port 4................................................................................................................................. 10A.4.1 Overview ....................................................................................................... 10A.4.2 Register Configuration .................................................................................. 10A.4.3 Pin Functions................................................................................................. 10A.5 Port 7 ............................................................................................................................. 10A.5.1 Overview ....................................................................................................... 10A.5.2 Register Configuration .................................................................................. 10A.5.3 Pin Functions................................................................................................. 361 366 366 367 369 381 381 381 384 387 387 388 388 389 389 390 392 vii 10A.6 10A.7 10A.8 10A.9 10A.10 10A.11 10A.12 10A.13 Port 9 ............................................................................................................................. 10A.6.1 Overview ....................................................................................................... 10A.6.2 Register Configuration .................................................................................. 10A.6.3 Pin Functions................................................................................................. Port A............................................................................................................................. 10A.7.1 Overview ....................................................................................................... 10A.7.2 Register Configuration .................................................................................. 10A.7.3 Pin Functions................................................................................................. 10A.7.4 MOS Input Pull-Up Function ........................................................................ Port B............................................................................................................................. 10A.8.1 Overview ....................................................................................................... 10A.8.2 Register Configuration .................................................................................. 10A.8.3 Pin Functions................................................................................................. 10A.8.4 MOS Input Pull-Up Function ........................................................................ Port C............................................................................................................................. 10A.9.1 Overview ....................................................................................................... 10A.9.2 Register Configuration .................................................................................. 10A.9.3 Pin Functions for Each Mode ........................................................................ 10A.9.4 MOS Input Pull-Up Function ........................................................................ Port D............................................................................................................................. 10A.10.1 Overview ....................................................................................................... 10A.10.2 Register Configuration .................................................................................. 10A.10.3 Pin Functions................................................................................................. 10A.10.4 MOS Input Pull-Up Function ........................................................................ Port E............................................................................................................................. 10A.11.1 Overview ....................................................................................................... 10A.11.2 Register Configuration .................................................................................. 10A.11.3 Pin Functions................................................................................................. 10A.11.4 MOS Input Pull-Up Function ........................................................................ Port F ............................................................................................................................. 10A.12.1 Overview ....................................................................................................... 10A.12.2 Register Configuration .................................................................................. 10A.12.3 Pin Functions................................................................................................. Port G............................................................................................................................. 10A.13.1 Overview ....................................................................................................... 10A.13.2 Register Configuration .................................................................................. 10A.13.3 Pin Functions................................................................................................. 395 395 396 396 397 397 398 401 401 403 403 404 407 408 409 409 410 413 415 416 416 417 419 420 421 421 422 424 425 426 426 427 429 431 431 432 434 Section 10B I/O Ports (H8S/2695)................................................................................ 437 10B.1 10B.2 Overview ....................................................................................................................... Port 1 ............................................................................................................................. 10B.2.1 Overview ....................................................................................................... 10B.2.2 Register Configuration .................................................................................. 437 442 442 443 viii 10B.2.3 Pin Functions................................................................................................. 10B.3 Port 3 ............................................................................................................................. 10B.3.1 Overview ....................................................................................................... 10B.3.2 Register Configuration .................................................................................. 10B.3.3 Pin Functions................................................................................................. 10B.4 Port 4 ............................................................................................................................. 10B.4.1 Overview ....................................................................................................... 10B.4.2 Register Configuration .................................................................................. 10B.4.3 Pin Functions................................................................................................. 10B.5 Port 7 ............................................................................................................................. 10B.5.1 Overview ....................................................................................................... 10B.5.2 Register Configuration .................................................................................. 10B.5.3 Pin Functions................................................................................................. 10B.6 Port 9 ............................................................................................................................. 10B.6.1 Overview ....................................................................................................... 10B.6.2 Register Configuration .................................................................................. 10B.6.3 Pin Functions................................................................................................. 10B.7 Port A............................................................................................................................. 10B.7.1 Overview ....................................................................................................... 10B.7.2 Register Configuration .................................................................................. 10B.7.3 Pin Functions................................................................................................. 10B.7.4 MOS Input Pull-Up Function ........................................................................ 10B.8 Port B............................................................................................................................. 10B.8.1 Overview ....................................................................................................... 10B.8.2 Register Configuration .................................................................................. 10B.8.3 Pin Functions................................................................................................. 10B.8.4 MOS Input Pull-Up Function ........................................................................ 10B.9 Port C............................................................................................................................. 10B.9.1 Overview ....................................................................................................... 10B.9.2 Register Configuration .................................................................................. 10B.9.3 Pin Functions for Each Mode ........................................................................ 10B.9.4 MOS Input Pull-Up Function ........................................................................ 10B.10 Port D............................................................................................................................. 10B.10.1 Overview ....................................................................................................... 10B.10.2 Register Configuration .................................................................................. 10B.10.3 Pin Functions................................................................................................. 10B.10.4 MOS Input Pull-Up Function ........................................................................ 10B.11 Port E............................................................................................................................. 10B.11.1 Overview ....................................................................................................... 10B.11.2 Register Configuration .................................................................................. 10B.11.3 Pin Functions................................................................................................. 10B.11.4 MOS Input Pull-Up Function ........................................................................ 10B.12 Port F ............................................................................................................................. 445 457 457 457 460 463 463 464 464 465 465 466 468 470 470 471 471 472 472 473 476 477 478 478 479 482 483 484 484 485 488 490 491 491 492 494 495 496 496 497 499 500 501 ix 10B.12.1 Overview ....................................................................................................... 10B.12.2 Register Configuration .................................................................................. 10B.12.3 Pin Functions................................................................................................. 10B.13 Port G............................................................................................................................. 10B.13.1 Overview ....................................................................................................... 10B.13.2 Register Configuration .................................................................................. 10B.13.3 Pin Functions................................................................................................. 501 502 504 506 506 507 509 Section 11 16-Bit Timer Pulse Unit (TPU)................................................................. 511 11.1 Overview........................................................................................................................... 11.1.1 Features ............................................................................................................... 11.1.2 Block Diagram..................................................................................................... 11.1.3 Pin Configuration ................................................................................................ 11.1.4 Register Configuration ........................................................................................ 11.2 Register Descriptions........................................................................................................ 11.2.1 Timer Control Register (TCR) ............................................................................ 11.2.2 Timer Mode Register (TMDR) ........................................................................... 11.2.3 Timer I/O Control Register (TIOR) .................................................................... 11.2.4 Timer Interrupt Enable Register (TIER) ............................................................. 11.2.5 Timer Status Register (TSR)............................................................................... 11.2.6 Timer Counter (TCNT) ....................................................................................... 11.2.7 Timer General Register (TGR) ........................................................................... 11.2.8 Timer Start Register (TSTR)............................................................................... 11.2.9 Timer Synchro Register (TSYR)......................................................................... 11.2.10 Module Stop Control Register A (MSTPCRA)................................................... 11.3 Interface to Bus Master..................................................................................................... 11.3.1 16-Bit Registers................................................................................................... 11.3.2 8-Bit Registers..................................................................................................... 11.4 Operation .......................................................................................................................... 11.4.1 Overview ............................................................................................................. 11.4.2 Basic Functions ................................................................................................... 11.4.3 Synchronous Operation ....................................................................................... 11.4.4 Buffer Operation ................................................................................................. 11.4.5 Cascaded Operation............................................................................................. 11.4.6 PWM Modes ....................................................................................................... 11.4.7 Phase Counting Mode ......................................................................................... 11.5 Interrupts........................................................................................................................... 11.5.1 Interrupt Sources and Priorities........................................................................... 11.5.2 DTC/DMAC Activation (This function is not available in the H8S/2695)................................................. 11.5.3 A/D Converter Activation ................................................................................... 11.6 Operation Timing ............................................................................................................. 11.6.1 Input/Output Timing ........................................................................................... x 511 511 515 516 518 520 520 525 527 540 543 547 548 549 550 551 552 552 552 554 554 555 561 563 567 569 574 581 581 583 583 584 584 11.6.2 Interrupt Signal Timing ....................................................................................... 588 11.7 Usage Notes ...................................................................................................................... 592 Section 12 Programmable Pulse Generator (PPG) (This function is not available in the H8S/2695) ................................. 603 12.1 Overview........................................................................................................................... 12.1.1 Features ............................................................................................................... 12.1.2 Block Diagram..................................................................................................... 12.1.3 Pin Configuration ................................................................................................ 12.1.4 Registers .............................................................................................................. 12.2 Register Descriptions........................................................................................................ 12.2.1 Next Data Enable Registers H and L (NDERH, NDERL).................................. 12.2.2 Output Data Registers H and L (PODRH, PODRL) ........................................... 12.2.3 Next Data Registers H and L (NDRH, NDRL)................................................... 12.2.4 Notes on NDR Access......................................................................................... 12.2.5 PPG Output Control Register (PCR)................................................................... 12.2.6 PPG Output Mode Register (PMR)..................................................................... 12.2.7 Port 1 Data Direction Register (P1DDR) ............................................................ 12.2.8 Module Stop Control Register A (MSTPCRA)................................................... 12.3 Operation .......................................................................................................................... 12.3.1 Overview ............................................................................................................. 12.3.2 Output Timing ..................................................................................................... 12.3.3 Normal Pulse Output ........................................................................................... 12.3.4 Non-Overlapping Pulse Output ........................................................................... 12.3.5 Inverted Pulse Output .......................................................................................... 12.3.6 Pulse Output Triggered by Input Capture ........................................................... 12.4 Usage Notes ...................................................................................................................... 603 603 604 605 606 607 607 608 609 609 611 613 616 616 617 617 618 619 621 624 625 626 Section 13 8-Bit Timers (TMR) (This function is not available in the H8S/2695) ................................. 629 13.1 Overview........................................................................................................................... 13.1.1 Features ............................................................................................................... 13.1.2 Block Diagram..................................................................................................... 13.1.3 Pin Configuration ................................................................................................ 13.1.4 Register Configuration ........................................................................................ 13.2 Register Descriptions........................................................................................................ 13.2.1 Timer Counters 0 to 3 (TCNT0 to TCNT3) ........................................................ 13.2.2 Time Constant Registers A0 to A3 (TCORA0 to TCORA3).............................. 13.2.3 Time Constant Registers B0 to B3 (TCORB0 to TCORB3)............................... 13.2.4 Timer Control Registers 0 to 3 (TCR0 to TCR3)................................................ 13.2.5 Timer Control/Status Registers 0 to 3 (TCSR0 to TCSR3) ................................ 13.2.6 Module Stop Control Register A (MSTPCRA)................................................... 13.3 Operation .......................................................................................................................... 629 629 630 631 632 633 633 633 634 634 637 640 641 xi 13.3.1 TCNT Incrementation Timing............................................................................. 13.3.2 Compare Match Timing ...................................................................................... 13.3.3 Timing of External RESET on TCNT................................................................. 13.3.4 Timing of Overflow Flag (OVF) Setting............................................................. 13.3.5 Operation with Cascaded Connection ................................................................. 13.4 Interrupts........................................................................................................................... 13.4.1 Interrupt Sources and DTC Activation (The H8S/2695 does not have a DTC function or an 8-bit timer)....................... 13.4.2 A/D Converter Activation ................................................................................... 13.5 Sample Application .......................................................................................................... 13.6 Usage Notes ...................................................................................................................... 13.6.1 Contention between TCNT Write and Clear....................................................... 13.6.2 Contention between TCNT Write and Increment ............................................... 13.6.3 Contention between TCOR Write and Compare Match ..................................... 13.6.4 Contention between Compare Matches A and B................................................. 13.6.5 Switching of Internal Clocks and TCNT Operation............................................ 13.6.6 Interrupts and Module Stop Mode....................................................................... 641 642 644 644 645 646 646 646 647 648 648 649 650 651 651 653 Section 14 14-Bit PWM D/A (This function is not available in the H8S/2695) ................................. 655 14.1 Overview........................................................................................................................... 14.1.1 Features ............................................................................................................... 14.1.2 Block Diagram..................................................................................................... 14.1.3 Pin Configuration ................................................................................................ 14.1.4 Register Configuration ........................................................................................ 14.2 Register Descriptions........................................................................................................ 14.2.1 PWM D/A Counter (DACNT) ............................................................................ 14.2.2 PWM D/A Data Registers A and B (DADRA and DADRB) ............................. 14.2.3 PWM D/A Control Register (DACR) ................................................................. 14.2.4 Module Stop Control Register B (MSTPCRB)................................................... 14.3 Bus Master Interface......................................................................................................... 14.4 Operation .......................................................................................................................... 655 655 656 657 657 658 658 659 660 662 663 666 Section 15 Watchdog Timer (WDT1 is not available in the H8S/2695) ............................................. 671 15.1 Overview........................................................................................................................... 15.1.1 Features ............................................................................................................... 15.1.2 Block Diagram..................................................................................................... 15.1.3 Pin Configuration ................................................................................................ 15.1.4 Register Configuration ........................................................................................ 15.2 Register Descriptions........................................................................................................ 15.2.1 Timer Counter (TCNT) ....................................................................................... 15.2.2 Timer Control/Status Register (TCSR) ............................................................... xii 671 671 672 674 674 675 675 675 15.2.3 Reset Control/Status Register (RSTCSR) ........................................................... 15.2.4 Pin Function Control Register (PFCR) ............................................................... 15.2.5 Notes on Register Access .................................................................................... 15.3 Operation .......................................................................................................................... 15.3.1 Watchdog Timer Operation................................................................................. 15.3.2 Interval Timer Operation..................................................................................... 15.3.3 Timing of Setting Overflow Flag (OVF)............................................................. 15.3.4 Timing of Setting of Watchdog Timer Overflow Flag (WOVF) ........................ 15.4 Interrupts........................................................................................................................... 15.5 Usage Notes ...................................................................................................................... 15.5.1 Contention between Timer Counter (TCNT) Write and Increment .................... 15.5.2 Changing Value of PSS and CKS2 to CKS0....................................................... 15.5.3 Switching between Watchdog Timer Mode and Interval Timer Mode............... 15.5.4 System Reset by WDTOVF Signal..................................................................... 15.5.5 Internal Reset in Watchdog Timer Mode ............................................................ 15.5.6 OVF Flag Clearing in Interval Timer Mode ....................................................... 680 681 682 684 684 686 686 687 688 688 688 689 689 689 689 690 Section 16 Serial Communication Interface (SCI, IrDA) (The H8S/2695 is not equipped with an IrDA function)................... 691 16.1 Overview........................................................................................................................... 16.1.1 Features ............................................................................................................... 16.1.2 Block Diagram..................................................................................................... 16.1.3 Pin Configuration ................................................................................................ 16.1.4 Register Configuration ........................................................................................ 16.2 Register Descriptions........................................................................................................ 16.2.1 Receive Shift Register (RSR).............................................................................. 16.2.2 Receive Data Register (RDR) ............................................................................. 16.2.3 Transmit Shift Register (TSR)............................................................................. 16.2.4 Transmit Data Register (TDR) ............................................................................ 16.2.5 Serial Mode Register (SMR)............................................................................... 16.2.6 Serial Control Register (SCR)............................................................................. 16.2.7 Serial Status Register (SSR)................................................................................ 16.2.8 Bit Rate Register (BRR)...................................................................................... 16.2.9 Smart Card Mode Register (SCMR) ................................................................... 16.2.10 IrDA Control Register (IrCR) ............................................................................. 16.2.11 Module Stop Control Registers B and C (MSTPCRB, MSTPCRC)................... 16.3 Operation .......................................................................................................................... 16.3.1 Overview ............................................................................................................. 16.3.2 Operation in Asynchronous Mode....................................................................... 16.3.3 Multiprocessor Communication Function........................................................... 16.3.4 Operation in Clocked Synchronous Mode .......................................................... 16.3.5 IrDA Operation ................................................................................................... 16.4 SCI Interrupts ................................................................................................................... 16.5 Usage Notes ...................................................................................................................... 691 691 693 694 695 697 697 697 698 698 699 702 706 710 719 720 721 723 723 726 737 745 753 756 758 xiii Section 17 Smart Card Interface..................................................................................... 767 17.1 Overview........................................................................................................................... 17.1.1 Features ............................................................................................................... 17.1.2 Block Diagram..................................................................................................... 17.1.3 Pin Configuration ................................................................................................ 17.1.4 Register Configuration ........................................................................................ 17.2 Register Descriptions........................................................................................................ 17.2.1 Smart Card Mode Register (SCMR) ................................................................... 17.2.2 Serial Status Register (SSR)................................................................................ 17.2.3 Serial Mode Register (SMR)............................................................................... 17.2.4 Serial Control Register (SCR)............................................................................. 17.3 Operation .......................................................................................................................... 17.3.1 Overview ............................................................................................................. 17.3.2 Pin Connections................................................................................................... 17.3.3 Data Format......................................................................................................... 17.3.4 Register Settings.................................................................................................. 17.3.5 Clock ................................................................................................................... 17.3.6 Data Transfer Operations .................................................................................... 17.3.7 Operation in GSM Mode..................................................................................... 17.3.8 Operation in Block Transfer Mode ..................................................................... 17.4 Usage Notes ...................................................................................................................... 767 767 768 769 770 772 772 774 776 778 779 779 779 781 783 785 787 794 795 796 Section 18 I2 C Bus Interface [Option] .......................................................................... 799 (This function is not available in the H8S/2695) 18.1 Overview........................................................................................................................... 18.1.1 Features ............................................................................................................... 18.1.2 Block Diagram .................................................................................................... 18.1.3 Input/Output Pins................................................................................................. 18.1.4 Register Configuration ........................................................................................ 18.2 Register Descriptions........................................................................................................ 18.2.1 I2C Bus Data Register (ICDR)............................................................................. 18.2.2 Slave Address Register (SAR) ............................................................................ 18.2.3 Second Slave Address Register (SARX)............................................................. 18.2.4 I2C Bus Mode Register (ICMR) .......................................................................... 18.2.5 I2C Bus Control Register (ICCR) ........................................................................ 18.2.6 I2C Bus Status Register (ICSR)........................................................................... 18.2.7 Serial Control Register X (SCRX) ...................................................................... 18.2.8 DDC Switch Register (DDCSWR) ..................................................................... 18.2.9 Module Stop Control Register B (MSTPCRB)................................................... 18.3 Operation .......................................................................................................................... 18.3.1 I2C Bus Data Format............................................................................................ 18.3.2 Initial Setting ....................................................................................................... 18.3.3 Master Transmit Operation ................................................................................. xiv 799 799 800 802 803 804 804 807 808 809 812 819 824 825 826 827 827 829 829 18.3.4 Master Receive Operation ................................................................................... 18.3.5 Slave Receive Operation ..................................................................................... 18.3.6 Slave Transmit Operation.................................................................................... 18.3.7 IRIC Setting Timing and SCL Control ............................................................... 18.3.8 Operation Using the DTC ................................................................................... 18.3.9 Noise Canceler..................................................................................................... 18.3.10 Sample Flowcharts .............................................................................................. 18.3.11 Initialization of Internal State.............................................................................. 18.4 Usage Notes ...................................................................................................................... 833 838 840 842 843 844 844 847 848 Section 19 A/D Converter ................................................................................................ 859 19.1 Overview........................................................................................................................... 19.1.1 Features ............................................................................................................... 19.1.2 Block Diagram..................................................................................................... 19.1.3 Pin Configuration ................................................................................................ 19.1.4 Register Configuration ........................................................................................ 19.2 Register Descriptions........................................................................................................ 19.2.1 A/D Data Registers A to D (ADDRA to ADDRD)............................................. 19.2.2 A/D Control/Status Register (ADCSR)............................................................... 19.2.3 A/D Control Register (ADCR)............................................................................ 19.2.4 Module Stop Control Register A (MSTPCRA)................................................... 19.3 Interface to Bus Master..................................................................................................... 19.4 Operation .......................................................................................................................... 19.4.1 Single Mode (SCAN = 0) .................................................................................... 19.4.2 Scan Mode (SCAN = 1) ...................................................................................... 19.4.3 Input Sampling and A/D Conversion Time......................................................... 19.4.4 External Trigger Input Timing ............................................................................ 19.5 Interrupts........................................................................................................................... 19.6 Usage Notes ...................................................................................................................... 859 859 860 861 862 863 863 864 867 868 869 870 870 872 874 875 876 876 Section 20 D/A Converter (This function is not available in the H8S/2695) ................................. 883 20.1 Overview........................................................................................................................... 20.1.1 Features ............................................................................................................... 20.1.2 Block Diagram..................................................................................................... 20.1.3 Input and Output Pins.......................................................................................... 20.1.4 Register Configuration ........................................................................................ 20.2 Register Descriptions........................................................................................................ 20.2.1 D/A Data Registers 0 to 3 (DADR0 to DADR3) ................................................ 20.2.2 D/A Control Register 01 and 23 (DACR01 and DACR23) ................................ 20.2.3 Module Stop Control Register A and C (MSTPCRA and MSTPCRC).............. 20.3 Operation .......................................................................................................................... 883 883 883 885 885 886 886 886 888 890 xv Section 21 RAM .................................................................................................................. 891 21.1 Overview........................................................................................................................... 21.1.1 Block Diagram..................................................................................................... 21.1.2 Register Configuration ........................................................................................ 21.2 Register Descriptions........................................................................................................ 21.2.1 System Control Register (SYSCR) ..................................................................... 21.3 Operation .......................................................................................................................... 21.4 Usage Notes ...................................................................................................................... 891 891 892 892 892 893 893 Section 22 ROM .................................................................................................................. 895 22.1 Overview........................................................................................................................... 22.1.1 Block Diagram..................................................................................................... 22.1.2 Register Configuration ........................................................................................ 22.2 Register Descriptions........................................................................................................ 22.2.1 Mode Control Register (MDCR)......................................................................... 22.3 Operation .......................................................................................................................... 22.4 Flash Memory Overview .................................................................................................. 22.4.1 Features ............................................................................................................... 22.4.2 Overview ............................................................................................................. 22.4.3 Flash Memory Operating Modes......................................................................... 22.4.4 On-Board Programming Modes .......................................................................... 22.4.5 Flash Memory Emulation in RAM...................................................................... 22.4.6 Differences between Boot Mode and User Program Mode................................. 22.4.7 Block Configuration ............................................................................................ 22.4.8 Pin Configuration ................................................................................................ 22.4.9 Register Configuration ........................................................................................ 22.5 Register Descriptions........................................................................................................ 22.5.1 Flash Memory Control Register 1 (FLMCR1).................................................... 22.5.2 Flash Memory Control Register 2 (FLMCR2).................................................... 22.5.3 Erase Block Register 1 (EBR1)........................................................................... 22.5.4 Erase Block Register 2 (EBR2)........................................................................... 22.5.5 RAM Emulation Register (RAMER) .................................................................. 22.5.6 Flash Memory Power Control Register (FLPWCR) ........................................... 22.5.7 Serial Control Register X (SCRX) ...................................................................... 22.6 On-Board Programming Modes ....................................................................................... 22.6.1 Boot Mode........................................................................................................... 22.6.2 User Program Mode ............................................................................................ 22.7 Programming/Erasing Flash Memory............................................................................... 22.7.1 Program Mode..................................................................................................... 22.7.2 Program-Verify Mode ......................................................................................... 22.7.3 Erase Mode.......................................................................................................... 22.7.4 Erase-Verify Mode .............................................................................................. 22.8 Protection.......................................................................................................................... xvi 895 895 895 896 896 896 899 899 900 901 902 904 905 906 906 907 907 907 910 911 912 913 915 915 916 917 921 923 924 925 929 929 931 22.9 22.10 22.11 22.12 22.13 22.14 22.8.1 Hardware Protection............................................................................................ 22.8.2 Software Protection ............................................................................................. 22.8.3 Error Protection ................................................................................................... Flash Memory Emulation in RAM................................................................................... Interrupt Handling when Programming/Erasing Flash Memory ...................................... Flash Memory Programmer Mode ................................................................................... 22.11.1 Socket Adapter Pin Correspondence Diagram .................................................... 22.11.2 Programmer Mode Operation.............................................................................. 22.11.3 Memory Read Mode............................................................................................ 22.11.4 Auto-Program Mode ........................................................................................... 22.11.5 Auto-Erase Mode................................................................................................. 22.11.6 Status Read Mode................................................................................................ 22.11.7 Status Polling....................................................................................................... 22.11.8 Programmer Mode Transition Time.................................................................... 22.11.9 Notes on Memory Programming......................................................................... Flash Memory and Power-Down States ........................................................................... 22.12.1 Note on Power-Down States ............................................................................... Flash Memory Programming and Erasing Precautions .................................................... Note on Switching from F-ZTAT Version to Mask ROM Version ................................. 931 932 933 935 937 937 938 940 941 944 946 948 949 949 950 951 951 952 957 Section 23A Clock Pulse Generator (H8S/2633, H8S/2632, H8S/2631, H8S/2633F) .............................. 959 23A.1 Overview ......................................................................................................................... 23A.1.1 Block Diagram................................................................................................. 23A.1.2 Register Configuration .................................................................................... 23A.2 Register Descriptions....................................................................................................... 23A.2.1 System Clock Control Register (SCKCR) ...................................................... 23A.2.2 Low-Power Control Register (LPWRCR)....................................................... 23A.3 Oscillator ......................................................................................................................... 23A.3.1 Connecting a Crystal Resonator ...................................................................... 23A.3.2 External Clock Input ....................................................................................... 23A.4 PLL Circuit...................................................................................................................... 23A.5 Medium-Speed Clock Divider......................................................................................... 23A.6 Bus Master Clock Selection Circuit ................................................................................ 23A.7 Subclock Oscillator ......................................................................................................... 23A.8 Subclock Waveform Shaping Circuit.............................................................................. 23A.9 Note on Crystal Resonator............................................................................................... 959 959 960 960 960 961 962 962 965 967 967 967 968 969 969 Section 23B Clock Pulse Generator (H8S/2633R, H8S/2695)............................. 971 23B.1 Overview ......................................................................................................................... 23B.1.1 Block Diagram................................................................................................. 23B.1.2 Register Configuration .................................................................................... 23B.2 Register Descriptions....................................................................................................... 971 971 972 972 xvii 23B.3 23B.4 23B.5 23B.6 23B.7 23B.8 23B.9 23B.2.1 System Clock Control Register (SCKCR) ...................................................... 23B.2.2 Low-Power Control Register (LPWRCR)....................................................... Oscillator ......................................................................................................................... 23B.3.1 Connecting a Crystal Resonator ...................................................................... 23B.3.2 External Clock Input ....................................................................................... PLL Circuit...................................................................................................................... Medium-Speed Clock Divider......................................................................................... Bus Master Clock Selection Circuit ................................................................................ Subclock Oscillator (This function is not available in the H8S/2695)............................................................. Subclock Waveform Shaping Circuit.............................................................................. Note on Crystal Resonator............................................................................................... 972 973 974 974 977 979 979 980 980 981 981 Section 24 Power-Down Modes ..................................................................................... 983 24.1 Overview........................................................................................................................... 983 24.1.1 Register Configuration ........................................................................................ 988 24.2 Register Descriptions........................................................................................................ 989 24.2.1 Standby Control Register (SBYCR) ................................................................... 989 24.2.2 System Clock Control Register (SCKCR) .......................................................... 991 24.2.3 Low-Power Control Register (LPWRCR)........................................................... 992 24.2.4 Timer Control/Status Register (TCSR) ............................................................... 995 24.2.5 Module Stop Control Register (MSTPCR) ......................................................... 996 24.3 Medium-Speed Mode ....................................................................................................... 997 24.4 Sleep Mode....................................................................................................................... 998 24.4.1 Sleep Mode.......................................................................................................... 998 24.4.2 Exiting Sleep Mode............................................................................................. 998 24.5 Module Stop Mode ........................................................................................................... 999 24.5.1 Module Stop Mode .............................................................................................. 999 24.5.2 Usage Notes........................................................................................................... 1001 24.6 Software Standby Mode ................................................................................................... 1001 24.6.1 Software Standby Mode ........................................................................................ 1001 24.6.2 Exiting Software Standby Mode ........................................................................... 1001 24.6.3 Setting Oscillation Stabilization Time after Clearing Software Standby Mode.... 1002 24.6.4 Software Standby Mode Application Example ..................................................... 1003 24.6.5 Usage Notes........................................................................................................... 1004 24.7 Hardware Standby Mode..................................................................................................... 1005 24.7.1 Hardware Standby Mode....................................................................................... 1005 24.7.2 Hardware Standby Mode Timing .......................................................................... 1005 24.8 Watch Mode (This function is not available in the H8S/2695).............................................................. 1006 24.8.1 Watch Mode........................................................................................................... 1006 24.8.2 Exiting Watch Mode.............................................................................................. 1006 24.8.3 Notes ...................................................................................................................... 1007 xviii 24.9 Sub-Sleep Mode (This function is not available in the H8S/2695).............................................................. 1007 24.9.1 Sub-Sleep Mode..................................................................................................... 1007 24.9.2 Exiting Sub-Sleep Mode........................................................................................ 1008 24.10 Sub-Active Mode (This function is not available in the H8S/2695).............................................................. 1008 24.10.1 Sub-Active Mode................................................................................................. 1008 24.10.2 Exiting Sub-Active Mode.................................................................................... 1008 24.10.3 Usage Notes......................................................................................................... 1009 24.11 Direct Transitions (This function is not available in the H8S/2695).............................................................. 1010 24.11.1 Overview of Direct Transitions........................................................................... 1010 24.12 o Clock Output Disabling Function.................................................................................. 1010 Section 25 Electrical Characteristics (H8S/2633, H8S/2632, H8S/2631, H8S/2633F) .................................. 1011 25.1 Absolute Maximum Ratings............................................................................................. 1011 25.2 DC Characteristics ............................................................................................................ 1012 25.3 AC Characteristics ............................................................................................................ 1020 25.3.1 Clock Timing....................................................................................................... 1021 25.3.2 Control Signal Timing......................................................................................... 1023 25.3.3 Bus Timing .......................................................................................................... 1025 25.3.4 DMAC Timing .................................................................................................... 1034 25.3.5 Timing of On-Chip Supporting Modules ............................................................ 1038 25.4 A/D Conversion Characteristics ....................................................................................... 1046 25.5 D/A Conversion Characteristics ....................................................................................... 1047 25.6 Flash Memory Characteristics .......................................................................................... 1048 25.7 Usage Note ....................................................................................................................... 1049 Section 26 Electrical Characteristics (H8S/2633R).................................................. 1051 26.1 Absolute Maximum Ratings............................................................................................. 1051 26.2 DC Characteristics ............................................................................................................ 1052 26.3 AC Characteristics ............................................................................................................ 1057 26.3.1 Clock Timing....................................................................................................... 1058 26.3.2 Control Signal Timing......................................................................................... 1060 26.3.3 Bus Timing .......................................................................................................... 1062 26.3.4 DMAC Timing .................................................................................................... 1071 26.3.5 Timing of On-Chip Supporting Modules ............................................................ 1075 26.4 A/D Conversion Characteristics ....................................................................................... 1082 26.5 D/A Conversion Characteristics ....................................................................................... 1083 26.6 Flash Memory Characteristics .......................................................................................... 1084 26.7 Usage Note ....................................................................................................................... 1085 xix Section 27 Electrical Characteristics (H8S/2695)..................................................... 1087 27.1 Absolute Maximum Ratings............................................................................................. 1087 27.2 DC Characteristics ............................................................................................................ 1088 27.3 AC Characteristics ............................................................................................................ 1091 27.3.1 Clock Timing....................................................................................................... 1092 27.3.2 Control Signal Timing......................................................................................... 1094 27.3.3 Bus Timing .......................................................................................................... 1096 27.3.4 Timing of On-Chip Supporting Modules ............................................................ 1103 27.4 A/D Conversion Characteristics ....................................................................................... 1106 27.5 Usage Note ....................................................................................................................... 1106 Appendix A Instruction Set............................................................................................. 1107 A.1 A.2 A.3 A.4 A.5 A.6 Instruction List.................................................................................................................. 1107 Instruction Codes .............................................................................................................. 1131 Operation Code Map......................................................................................................... 1146 Number of States Required for Instruction Execution ..................................................... 1150 Bus States During Instruction Execution ......................................................................... 1164 Condition Code Modification........................................................................................... 1178 Appendix B Internal I/O Register ................................................................................. 1184 B.1A Addresses (H8S/2633 Series, H8S/2633F, H8S/2633R).................................................. 1184 B.1B Addresses (H8S/2695) ...................................................................................................... 1194 B.2 Functions........................................................................................................................... 1201 Appendix C I/O Port Block Diagrams......................................................................... 1299 C.1 C.2 C.3 C.4 C.5 C.6 C.7 C.8 C.9 C.10 C.11 C.12 C.13 C.14 C.15 C.16 C.17 C.18 xx Port 1 Block Diagram....................................................................................................... 1299 Port 3 Block Diagram....................................................................................................... 1305 Port 4 Block Diagram....................................................................................................... 1313 Port 7 Block Diagram....................................................................................................... 1314 Port 9 Block Diagram....................................................................................................... 1321 Port A Block Diagram ...................................................................................................... 1322 Port B Block Diagram ...................................................................................................... 1326 Port C Block Diagram ...................................................................................................... 1327 Port D Block Diagram ...................................................................................................... 1329 Port E Block Diagram....................................................................................................... 1330 Port F Block Diagram....................................................................................................... 1331 Port G Block Diagram ...................................................................................................... 1339 Port 1 Block Diagram....................................................................................................... 1343 Port 3 Block Diagram....................................................................................................... 1349 Port 4 Block Diagram....................................................................................................... 1357 Port 7 Block Diagram....................................................................................................... 1358 Port 9 Block Diagram....................................................................................................... 1365 Port A Block Diagram ...................................................................................................... 1366 C.19 C.20 C.21 C.22 C.23 C.24 Port B Block Diagram ...................................................................................................... 1370 Port C Block Diagram ...................................................................................................... 1371 Port D Block Diagram ...................................................................................................... 1373 Port E Block Diagram....................................................................................................... 1374 Port F Block Diagram....................................................................................................... 1375 Port G Block Diagram ...................................................................................................... 1383 Appendix D Pin States ...................................................................................................... 1387 D.1 Port States in Each Mode ................................................................................................. 1387 Appendix E Appendix F Timing of Transition to and Recovery from Hardware Standby Mode............................................................................................. 1395 Product Code Lineup ................................................................................ 1396 Appendix G Package Dimensions................................................................................. 1397 xxi xxii Section 1 Overview 1.1 Overview The H8S/2633 Series is a series of microcomputers (MCUs: microcomputer units), built around the H8S/2600 CPU, employing Hitachi's proprietary architecture, and equipped with peripheral functions on-chip. The H8S/2600 CPU has an internal 32-bit architecture, is provided with sixteen 16-bit general registers and a concise, optimized instruction set designed for high-speed operation, and can address a 16-Mbyte linear address space. The instruction set is upward-compatible with H8/300 and H8/300H CPU instructions at the object-code level, facilitating migration from the H8/300, H8/300L, or H8/300H Series. On-chip peripheral functions required for system configuration include DMA controller (DMAC) *2, data transfer controller (DTC)*2 bus masters, ROM and RAM memory, a 16-bit timerpulse unit (TPU), programmable pulse generator (PPG)*2, 8-bit timer*2, 14-bit PWM timer (PWM) *2, watchdog timer (WDT), serial communication interface (SCI, IrDA)*2, A/D converter, D/A converter*2, and I/O ports. It is also possible to incorporate an on-chip PC bus interface (IIC)*2 as an option. On-chip ROM is available as 256-kbyte flash memory (F-ZTATTM version)*1 or as 256-, 128-, or 64-kbyte mask ROM. ROM is connected to the CPU via a 16-bit data bus, enabling both byte and word data to be accessed in one state. Instruction fetching has been speeded up, and processing speed increased. Four operating modes, modes 4 to 7, are provided, and there is a choice of single-chip mode or external expansion mode. The features of the H8S/2633 Series are shown in table 1-1. Notes: *1 F-ZTATTM is a trademark of Hitachi, Ltd. *2 This function is not available in the H8S/2695. 1 Table 1-1 Item CPU Overview Specification * General-register machine Sixteen 16-bit general registers (also usable as sixteen 8-bit registers or eight 32-bit registers) High-speed operation suitable for realtime control Maximum clock rate: 25 MHz (H8S/2633 Series, H8S/2633F), 28 MHz (H8S/2633R, H8S/2695) High-speed arithmetic operations 8/16/32-bit register-register add/subtract : 40 ns, 35 ns 16 x 16-bit register-register multiply : 160 ns, 140 ns 16 x 16 + 42-bit multiply and accumulate : 160 ns, 140 ns 32 / 16-bit register-register divide : 800 ns, 700 ns Instruction set suitable for high-speed operation Sixty-nine basic instructions 8/16/32-bit move/arithmetic and logic instructions Unsigned/signed multiply and divide instructions Multiply-and accumulate instruction Powerful bit-manipulation instructions Two CPU operating modes Normal mode: 64-kbyte address space (cannot be used in the H8S/2633 Series) Advanced mode: 16-Mbyte address space Address space divided into 8 areas, with bus specifications settable independently for each area Choice of 8-bit or 16-bit access space for each area 2-state or 3-state access space can be designated for each area Number of program wait states can be set for each area Burst ROM directly connectable Possible to connect* a maximum of 8 MB of DRAM (alternatively, it is also possible to use an interval timer) External bus release function Supports debugging functions by means of PC break interrupts Two break channels Short address mode and full address mode selectable Short address mode: 4 channels Full address mode: 2 channels Transfer possible in repeat mode/block transfer mode Transfer possible in single address mode Activation by internal interrupt possible * * * Bus * controller * * * * * * PC break * controller * DMA * controller * (DMAC)* * * 2 Note: * This function is not available in the H8S/2695. Item Data transfer controller (DTC)* 1 Specification * * * * Can be activated by internal interrupt or software Multiple transfers or multiple types of transfer possible for one activation source Transfer possible in repeat mode, block transfer mode, etc. Request can be sent to CPU for interrupt that activated DTC 6-channel 16-bit timer on-chip Pulse I/O processing capability for up to 16 pins' Automatic 2-phase encoder count capability Maximum 16-bit pulse output possible with TPU as time base Output trigger selectable in 4-bit groups Non-overlap margin can be set Direct output or inverse output setting possible 8-bit up counter (external event count possible) Time constant register x 2 2 channel connection possible Watchdog timer or interval timer selectable Operation using sub-clock supported (WDT1 only) Maximum of 4 outputs Resolution: 1/16384 Maximum carrier frequency: 390.6 kHz (operating at 25 MHz), 437.6 kHz (operating at 28 MHz) Asynchronous mode or synchronous mode selectable Multiprocessor communication function Smart card interface function 16-bit timer-pulse unit (TPU) Programmable pulse generator (PPG) 8-bit timer* 1 4 channels * * * * * * * * * * * * * * * * * * Watchdog timer 2 channels * 2 14-bit PWM timer (PWM)* 1 Serial communication interface (SCI) 5 channels (SCI0 to SCI4) IrDA-equipped SCI * 1 * 1 channel (SCI0) * * * * Supports IrDA standard version 1.0 TxD and RxD encoding/decoding in IrDA format Start/stop synchronization mode or clock synchronization mode selectable Multiprocessor communications function Smart card interface function Notes: *1 This function is not available in the H8S/2695. *2 The watchdog timer in the H8S/2695 has one channel only. 3 Item A/D converter Specification * * * * * * Resolution: 10 bits Input: 16 channels High-speed conversion: 10.72 s minimum conversion time (at 25 MHz operation) Single or scan mode selectable Sample and hold circuit A/D conversion can be activated by external trigger or timer trigger Resolution: 8 bits Output: 4 channels 73 I/O pins, 16 input-only pins PROM or mask ROM High-speed static RAM ROM 256 kbytes 192 kbytes 128 kbytes 256 kbytes 192 kbytes RAM 16 kbytes 12 kbytes 8 kbytes 16 kbytes 8 kbytes D/A converter* I/O ports Memory * * * * * Product Name H8S/2633 H8S/2632 H8S/2631 H8S/2633R H8S/2695 Interrupt controller * * * Power-down state * * * * * * Nine external interrupt pins (NMI, IRQ0 to IRQ7) 72 internal interrupt sources (including options), 49 interrupt sources in the H8S/2695 Eight priority levels settable Medium-speed mode Sleep mode Module stop mode Software standby mode Hardware standby mode Sub-clock operation (sub-active mode, sub-sleep mode, watch mode) Note: * This function is not available in the H8S/2695. 4 Item Operating modes Specification Four MCU operating modes CPU Operating Mode Mode Description 4 5 6 7 Advanced On-chip ROM disabled expansion mode On-chip ROM disabled expansion mode On-chip ROM enabled expansion mode Single-chip mode External Data Bus On-Chip ROM Disabled Disabled Enabled Enabled Initial Value 16 bits 8 bits 8 bits -- Maximum Value 16 bits 16 bits 16 bits -- Clock pulse generator H8S/2633, H8S/2632, H8S/2631 * * * * On-chip PLL circuit (x1, x2, x4) Input clock frequency: 2 to 25 MHz On-chip PLL circuit (x1, x2, x4) : 2 to 25 MHz (x2, x4) : 25 to 28 MHz Input clock frequency: 2 to 25 MHz 120-pin plastic TQFP (TFP-120) 128-pin plastic QFP (FP-128B) Conforms to I2C bus interface type advocated by Philips Single master mode/slave mode Possible to determine arbitration lost conditions Supports two slave addresses H8S/2633R, H8S/2695 Packages I 2C bus interface (IIC)* 2 channels (optional) * * * * * * Note: * This function is not available in the H8S/2695. 5 Item Product lineup Specification H8S/2633 Series, H8S/2633F, H8S/2633R, H8S/2695 Operating Frequencies and Voltages 28 MHz Operation Version Input clock frequency range Operating frequency range 2 to 25 MHz 25 MHz Operation Version 2 to 25 MHz 16 MHz Operation Version 2 to 16 MHz 2 to 16 MHz 2 to 25 MHz 2 to 25 MHz (For 25 to 28 MHz operation, make sure to use a PLL with a multiplying factor set to x2 or x4.) PVCC = 4.5 to 5.5 V (This is a single power supply and has no Vcc pin. Refer to ~ for details.) AVCC = 4.5 to 5.5 V V ref = 4.5 to AV CC PVCC = 4.5 to 5.5 V V CC = 3.0 to 3.6 V AVCC = 4.5 to 5.5 V V ref = 4.5 to AV CC Operating voltage range PVCC = 3.0 to 5.5 V V CC = 3.0 to 3.6 V [When using A/D or D/A] *2 AVCC = 3.6 to 5.5 V V ref = 3.6 V to AVCC [When not using A/D or D/A] *2 AVCC = 3.3 to 5.5 V V ref = 3.3 V to AVCC Flash version Model (ROM/RAM) HD64F2633RF28 (256 kbytes/16 kbytes) HD64F2633RTE28 (256 kbytes/16 kbytes) HD64F2633F25 (256 kbytes/16 kbytes) HD64F2633TE25 (256 kbytes/16 kbytes) HD6432633F25 (256 kbytes/16 kbytes) HD6432633TE25 (256 kbytes/16 kbytes) HD6432632F25 (192 kbytes/12 kbytes) HD6432632TE25 (192 kbytes/12 kbytes) HD6432631F25 (128 kbytes/8 kbytes) HD6432631TE25 (128 kbytes/8 kbytes) HD64F2633F16 (256 kbytes/16 kbytes) HD64F2633TE16 (256 kbytes/16 kbytes) HD6432633F16 (256 kbytes/16 kbytes) HD6432633TE16 (256 kbytes/16 kbytes) HD6432632F16 (192 kbytes/12 kbytes) HD6432632TE16 (192 kbytes/12 kbytes) HD6432631F16 (128 kbytes/8 kbytes) HD6432631TE16 (128 kbytes/8 kbytes) Mask version Model (ROM/RAM) HD6432695F28*1 (192 kbytes/8 kbytes) Notes: *1 The module configuration of the HD6432695 differs from that of the HD6432633 Series, HD64F2633, and HD64F2633R. (For information on the module configuration refer to comparison of H8S/2633, H8S/2632, H8S/2631, H8S/2633F-ZTAT, H8S/2633RF-ZTAT, and H8S/2695 Product Specifications. *2 In the case of the 16 MHz operation version, the operating power supply ranges differ depending on whether A/D or D/A conversion is used. 6 Item Product lineup Specification Models and Corresponding Packages Model Name HD64F2633F25 HD64F2633F16 HD6432633F25 HD6432633F16 HD6432632F25 HD6432632F16 HD6432631F25 HD6432631F16 HD64F2633RF28 HD6432695F28 HD64F2633TE25 HD64F2633TE16 HD6432633TE25 HD6432633TE16 HD6432632TE25 HD6432632TE16 HD6432631TE25 HD6432631TE16 HD64F2633RTE28 TFP-120 Package FP-128B 7 1.2 Internal Block Diagram Figure 1-1 (a) shows an internal block diagram of the H8S/2633, H8S/2632, H8S/2631, and H8S/2633F. Figure 1-1 (b) shows the internal block diagram of the H8S/2633R. Figure 1-1 (c) shows the internal block diagram of the H8S/2695. PD7/ D15 PD6/ D14 PD5/ D13 PD4/ D12 PD3/ D11 PD2/ D10 PD1/D9 PD0/D8 Port D MD2 MD1 MD0 OSC2 OSC1 EXTAL XTAL PLLVCC PLLCAP PLLVSS STBY RES WDTOVF NMI FWE*2 PF7 / o PF6 /AS/LCAS PF5 /RD PF4 /HWR PF3 /LWR/ADTRG/IRQ3 PF2 /LCAS /WAIT /BREQO PF1 /BACK/BUZZ PF0 /BREQ/IRQ2 PG4 /CS0 PG3 /CS1 PG2 /CS2 PG1 /CS3/OE/IRQ7 PG0 / CAS/IRQ6 P77 / TxD 3 P76 / R xD 3 P75 / TMO3/SCK3 P74 / TMO2/MRES P73 / TMO1/TEND1/CS7 P72 / TMO0/TEND0/CS6/SYNCI P71 /TMR23/TMC23/DREQ1/CS5 P70 /TMR01/TMC01/DREQ0/CS4 PE7/D7 PE6/D6 PE5/D5 PE4/D4 PE3/D3 PE2/D2 PE1/D1 PE0/D0 PVCC1 PVCC2 VCC VCC VSS VSS VSS VSS VSS VSS Port E Clock pulse generator H8S/2600 CPU Internal data bus Internal address bus PLL PA3 / A19/SCK2 PA2 / A18/RxD2 PA1 / A17/TxD2 PA0 / A16 Port A PC break controller (2 channels) DMAC Peripheral data bus Interrupt controller DTC Peripheral address bus PB7 / A15/TIOCB5 PB6 / A14/TIOCA5 PB5 / A13/TIOCB4 PB4 / A12/TIOCA4 PB3 / A11/TIOCD3 PB2 / A10/TIOCC3 PB1 / A9/TIOCB3 PB0 / A8/TIOCA3 PC7 / A7/ PWM1 PC6 / A6/ PWM0 PC5/ A5 PC4/ A4 PC3/ A3 PC2/ A2 PC1/ A1 PC0/ A0 P37 / TxD4 P36 / RxD4 P35 / SCK1/SCK4/SCL0/IRQ5 P34 / RxD1/SDA0 P33 / TxD1/SCL1 P32 / SCK0/SDA1/IRQ4 P31 / RxD0/IrRxD P30 / TxD0/IrTxD P97 / AN15/DA3 P96 / AN14/DA2 P95 / AN13 P94 / AN12 P93 / AN11 P92 / AN10 P91 / AN9 P90 / AN8 Bus controller Port F WDT x 2 channels RAM 8bit timer x 4 channels SCI x 5 channels (IrDA x 1channel) I2C bus interface (option) Port G TPU 14-bit PWM timer D/A converter Port 7 PPG A/D converter Port 9 Port 1 Vref AVCC AVSS P17 /PO15/ TIOCB2 /PWM3/TCLKD P16 /PO14/ TIOCA2/PWM2/IRQ1 P15 / PO13/TIOCB1 / TCLKC P14 / PO12/TIOCA1/IRQ0 P13 / PO11/TIOCD0 / TCLKB/A23 P12 / PO10/TIOCC0 / TCLKA/A22 P11 / PO9/ TIOCB0 /DACK1/A21 P10 / PO8/ TIOCA0 /DACK0/A20 Port 4 P47 /AN7/ DA1 P46 /AN6/ DA0 P45 /AN5 P44 /AN4 P43 /AN3 P42 /AN2 P41 /AN1 P40 /AN0 Notes: *1 Applies to the H8S/2633 only. *2 The FWE pin is used only in the flash memory version. Figure 1-1 (a) H8S/2633F, H8S/2633, H8S/2632, H8S/2631 Internal Block Diagram 8 Port 3 Port C ROM (Mask ROM, flash memory*1) Port B PD7/ D15 PD6/ D14 PD5/ D13 PD4/ D12 PD3/ D11 PD2/ D10 PD1/D9 PD0/D8 Port D MD2 MD1 MD0 OSC2 OSC1 EXTAL XTAL PLLVCC PLLCAP PLLVSS STBY RES WDTOVF NMI FWE VCL PF7 /o PF6 /AS/LCAS PF5 /RD PF4 /HWR PF3 /LWR/ADTRG/IRQ3 PF2 /LCAS /WAIT /BREQO PF1 /BACK/BUZZ PF0 /BREQ/IRQ2 PG4 /CS0 PG3 /CS1 PG2 /CS2 PG1 /CS3/OE/IRQ7 PG0 /CAS/IRQ6 P77 / TxD3 P76 / R xD 3 P75 / TMO3/SCK3 P74 / TMO2/MRES P73 / TMO1/TEND1/CS7 P72 / TMO0/TEND0/CS6/SYNCI P71 /TMR23/TMC23/DREQ1/CS5 P70 /TMR01/TMC01/DREQ0/CS4 PE7/D7 PE6/D6 PE5/D5 PE4/D4 PE3/D3 PE2/D2 PE1/D1 PE0/D0 PVCC1 PVCC2 VSS VSS VSS VSS VSS VSS Port E Clock pulse generator H8S/2600 CPU Internal data bus Internal address bus PLL PA3 / A19/SCK2 PA2 / A18/RxD2 PA1 / A17/TxD2 PA0 / A16 Port A PC break controller (2 channels) DMAC Peripheral data bus Interrupt controller DTC Peripheral address bus PB7 / A15/TIOCB5 PB6 / A14/TIOCA5 PB5 / A13/TIOCB4 PB4 / A12/TIOCA4 PB3 / A11/TIOCD3 PB2 / A10/TIOCC3 PB1 / A9/TIOCB3 PB0 / A8/TIOCA3 PC7 / A7/ PWM1 PC6 / A6/ PWM0 PC5/ A5 PC4/ A4 PC3/ A3 PC2/ A2 PC1/ A1 PC0/ A0 P37 / TxD4 P36 / RxD4 P35 / SCK1/SCK4/SCL0/IRQ5 P34 / RxD1/SDA0 P33 / TxD1/SCL1 P32 / SCK0/SDA1/IRQ4 P31 / RxD0/IrRxD P30 / TxD0/IrTxD P97 / AN15/DA3 P96 / AN14/DA2 P95 / AN13 P94 / AN12 P93 / AN11 P92 / AN10 P91 / AN9 P90 / AN8 Bus controller Port F WDT x 2 channels RAM 8bit timer x 4 channels SCI x 5 channels (IrDA x 1channel) I2C bus interface (option) Port G TPU 14-bit PWM timer D/A converter Port 7 PPG A/D converter Port 9 Port 1 Vref AVCC AVSS P17 / PO15/ TIOCB2 /PWM3/ TCLKD P16 / PO14/ TIOCA2/PWM2/IRQ1 P15 / PO13/ TIOCB1 / TCLKC P14 / PO12/ TIOCA1/IRQ0 P13 / PO11/ TIOCD0 / TCLKB/A23 P12 / PO10/ TIOCC0 / TCLKA/A22 P11 / PO9/ TIOCB0 /DACK1/A21 P10 / PO8/ TIOCA0 /DACK0/A20 Port 4 P47 / AN7/ DA1 P46 / AN6/ DA0 P45 / AN5 P44 / AN4 P43 / AN3 P42 / AN2 P41 / AN1 P40 / AN0 Figure 1-1 (b) H8S/2633R Internal Block Diagram Port 3 Port C ROM (flash memory) Port B 9 PD7/D15 PD6/D14 PD5/D13 PD4/D12 PD3/D11 PD2/D10 PD1/D9 PD0/D8 Port D Clock pulse generator Bus controller PF7 /o PF6 /AS PF5 /RD PF4 /HWR PF3 /LWR/ADTRG/IRQ3 PF2 /WAIT/BREQO PF1 /BACK PF0 /BREQ/IRQ2 PG4/CS0 PG3/CS1 PG2/CS2 PG1/CS3/IRQ7 PG0/IRQ6 P77/T x D3 P76/R x D 3 P75/SCK3 P74/MRES P73/CS7 P72/CS6 P71/CS5 P70/CS4 Peripheral data bus Peripheral address bus Interrupt controller Port B Port C Port 9 Port 3 PLLCAP PLLVSS STBY RES WDTOVF NMI H8S/2600 CPU Internal data bus Internal address bus VCL MD2 MD1 MD0 EXTAL XTAL PE7/D7 PE6/D6 PE5/D5 PE4/D4 PE3/D3 PE2/D2 PE1/D1 PE0/D0 PVCC PVCC VSS VSS VSS VSS VSS VSS Port E PLL PA3 /A19/SCK2 PA2 /A18/RxD2 PA1 /A17/TxD2 PA0 / A16 Port A PB7/ A 15/TIOCB5 PB6/ A 14/TIOCA5 PB5/ A 13/TIOCB4 PB4/ A 12/TIOCA4 PB3 / A 11/TIOCD3 PB2/ A 10/TIOCC3 PB1/ A 9/TIOCB3 PB0/ A 8/TIOCA3 PC7/ A 7 PC6/ A 6 PC5/ A 5 PC4/ A 4 PC3/ A 3 PC2/ A 2 PC1/ A 1 PC0/ A 0 P37 / TxD4 P36 / RxD4 P35 / SCK1/SCK4/IRQ5 P34 / RxD1 P33 / TxD1 P32 / SCK0/IRQ4 P31 / RxD0 P30 / TxD0 P97 / AN15 P96 / AN14 P95 / AN13 P94 / AN12 P93 / AN11 P92 / AN10 P91 / AN9 P90 / AN8 Port F ROM (Mask ROM) WDT x 1 channel RAM Port G SCI x 5 channels TPU Port 7 A/D converter Port 1 P17 / TIOCB2 / TCLKD P16 / TIOCA2/IRQ1 P15 / TIOCB1 / TCLKC P14 / TIOCA1/IRQ0 P13 / TIOCD0 / TCLKB/A23 P12 / TIOCC0 / TCLKA/A22 P11 / TIOCB0 /A21 P10 / TIOCA0 /A20 Vref AVCC AVSS Port 4 P47 / AN7 P46 / AN6 P45 / AN5 P44 / AN4 P43 / AN3 P42 / AN2 P41 / AN1 P40 / AN0 Figure 1-1 (c) H8S/2695 Internal Block Diagram 10 1.3 1.3.1 Pin Description Pin Arrangement Figures 1-2 (a) and 1.3 (a) show the pin arrangement of the H8S/2633, H8S/2632, H8S/2631, and H8S/2633F. Figures 1-2 (b) and 1.3 (b) show the pin arrangement of the H8S/2633R. Figures 1-3 (c) shows the pin arrangement of the H8S/2695. PF0/BREQ/IRQ2 PF1/BACK/BUZZ PF2/LCAS/WAIT/BREQO PF3/LWR/ADTRG/IRQ3 PF4/HWR PF5/RD PF6/AS/LCAS VSS PF7/o PVCC1 OSC2 OSC1 VSS EXTAL VCC XTAL FWE* AVCC Vref P40/AN0 P41/AN1 P42/AN2 P43/AN3 P44/AN4 P45/AN5 P46/AN6/DA0 P47/AN7/DA1 P90/AN8 P91/AN9 P92/AN10 P93/AN11 P94/AN12 P95/AN13 P96/AN14/DA2 P97/AN15/DA3 AVSS P70/TMRI01/TMCI01/DREQ0/CS4 P71/TMRI23/TMCI23/DREQ1/CS5 P72/TMO0/TEND0/CS6/SYNCI P73/TMO1/TEND1/CS7 P74/TMO2/MRES P75/TMO3/SCK3 P76/RxD3 P77/TxD3 MD0 MD1 MD2 Note: * The FWE pin is used only in the flash memory version. In the mask ROM version the FWE pin is an NC pin, and should be left open or connected to VSS. Figure 1-2 (a) H8S/2633, H8S/2632, H8S/2631, H8S/2633F Pin Arrangement (TFP-120: Top View) 11 PC0/A0 PC1/A1 PC2/A2 PC3/A3 VSS PC4/A4 VCC PC5/A5 PC6/A6/PWM0 PC7/A7/PWM1 VSS PB0/A8/TIOCA3 PVCC1 PB1/A9/TIOCB3 PB2/A10/TIOCC3 PB3/A11/TIOCD3 PB4/A12/TIOCA4 PB5/A13/TIOCB4 PB6/A14/TIOCA5 PB7/A15/TIOCB5 PA0/A16 PA1/A17/TxD2 PA2/A18/RxD2 PA3/A19/SCK2 VSS P10/PO8/TIOCA0/DACK0/A20 P11/PO9/TIOCB0/DACK1/A21 P12/PO10/TIOCC0/TCLKA/A22 P13/PO11/TIOCD0/TCLKB/A23 P14/PO12/TIOCA1/IRQ0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 STBY NMI RES PLLVSS PLLCAP PLLVCC WDTOVF PG4/CS0 PG3/CS1 PG2/CS2 PG1/CS3/OE/IRQ7 PG0/CAS/IRQ6 P37/TxD4 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 TOP VIEW (TFP-120) P36/RxD4 P35/SCK1/SCK4/SCL0/IRQ5 P34/RxD1/SDA0 P33/TxD1/SCL1 VSS P32/SCK0/SDA1/IRQ4 PVCC2 P31/RxD0/IrRxD P30/TxD0/IrTxD PD7/D15 PD6/D14 PD5/D13 PD4/D12 PD3/D11 PD2/D10 PD1/D9 PVCC1 PD0/D8 VSS PE7/D7 PE6/D6 PE5/D5 PE4/D4 PE3/D3 PE2/D2 PE1/D1 PE0/D0 P17/PO15/TIOCB2/PWM3/TCKLD P16/PO14/TIOCA2/PWM2/IRQ1 P15/PO13/TIOCB1/TCLKC PF0/BREQ/IRQ2 PF1/BACK/BUZZ PF2/LCAS/WAIT/BREQO PF3/LWR/ADTRG/IRQ3 PF4/HWR PF5/RD PF6/AS/LCAS VSS PF7/o PVCC1 OSC2 OSC1 VSS EXTAL NC XTAL FWE* AVCC Vref P40/AN0 P41/AN1 P42/AN2 P43/AN3 P44/AN4 P45/AN5 P46/AN6/DA0 P47/AN7/DA1 P90/AN8 P91/AN9 P92/AN10 P93/AN11 P94/AN12 P95/AN13 P96/AN14/DA2 P97/AN15/DA3 AVSS P70/TMRI01/TMCI01/DREQ0/CS4 P71/TMRI23/TMCI23/DREQ1/CS5 P72/TMO0/TEND0/CS6/SYNCI P73/TMO1/TEND1/CS7 P74/TMO2/MRES P75/TMO3/SCK3 P76/RxD3 P77/TxD3 MD0 MD1 MD2 Note: * The FWE pin is used only in the flash memory version. In the mask ROM version the FWE pin is an NC pin, and should be left open or connected to VSS. Figure 1-2 (b) H8S/2633R Pin Arrangement (TFP-120: Top View) 12 PC0/A0 PC1/A1 PC2/A2 PC3/A3 VSS PC4/A4 VCL PC5/A5 PC6/A6/PWM0 PC7/A7/PWM1 VSS PB0/A8/TIOCA3 PVCC1 PB1/A9/TIOCB3 PB2/A10/TIOCC3 PB3/A11/TIOCD3 PB4/A12/TIOCA4 PB5/A13/TIOCB4 PB6/A14/TIOCA5 PB7/A15/TIOCB5 PA0/A16 PA1/A17/TxD2 PA2/A18/RxD2 PA3/A19/SCK2 VSS P10/PO8/TIOCA0/DACK0/A20 P11/PO9/TIOCB0/DACK1/A21 P12/PO10/TIOCC0/TCLKA/A22 P13/PO11/TIOCD0/TCLKB/A23 P14/PO12/TIOCA1/IRQ0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 STBY NMI RES PLLVSS PLLCAP NC WDTOVF PG4/CS0 PG3/CS1 PG2/CS2 PG1/CS3/OE/IRQ7 PG0/CAS/IRQ6 P37/TxD4 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 TOP VIEW (TFP-120) P36/RxD4 P35/SCK1/SCK4/SCL0/IRQ5 P34/RxD1/SDA0 P33/TxD1/SCL1 VSS P32/SCK0/SDA1/IRQ4 PVCC2 P31/RxD0/IrRxD P30/TxD0/IrTxD PD7/D15 PD6/D14 PD5/D13 PD4/D12 PD3/D11 PD2/D10 PD1/D9 PVCC1 PD0/D8 VSS PE7/D7 PE6/D6 PE5/D5 PE4/D4 PE3/D3 PE2/D2 PE1/D1 PE0/D0 P17/PO15/TIOCB2/PWM3/TCKLD P16/PO14/TIOCA2/PWM2/IRQ1 P15/PO13/TIOCB1/TCLKC 0.1F Note: * The FWE pin is used only in the flash memory version. In the mask ROM version the FWE pin is an NC pin, and should be left open or connected to VSS. Figure 1-3 (a) H8S/2633, H8S/2632, H8S/2631, H8S/2633F Pin Arrangement (FP-128B: Top View) MD1 MD2 NC NC PC0/A0 PC1/A1 PC2/A2 PC3/A3 VSS PC4/A4 VCC PC5/A5 PC6/A6/PWM0 PC7/A7/PWM1 VSS PB0/A8/TIOCA3 PVCC1 PB1/A9/TIOCB3 PB2/A10/TIOCC3 PB3/A11/TIOCD3 PB4/A12/TIOCA4 PB5/A13/TIOCB4 PB6/A14/TIOCA5 PB7/A15/TIOCB5 PA0/A16 PA1/A17/TxD2 PA2/A18/RxD2 PA3/A19/SCK2 VSS P10/PO8/TIOCA0/DACK0/A20 P11/PO9/TIOCB0/DACK1/A21 P12/PO10/TIOCC0/TCLKA/A22 P13/PO11/TIOCD0/TCLKB/A23 P14/PO12/TIOCA1/IRQ0 NC NC P15/PO13/TIOCB1/TCLKC P16/PO14/TIOCA2/PWM2/IRQ1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 P40/AN0 P41/AN1 P42/AN2 P43/AN3 P44/AN4 P45/AN5 P46/AN6/DA0 P47/AN7/DA1 P90/AN8 P91/AN9 P92/AN10 P93/AN11 P94/AN12 P95/AN13 P96/AN14/DA2 P97/AN15/DA3 AVSS P70/TMRI01/TMCI01/DREQ0/CS4 P71/TMRI23/TMCI23/DREQ1/CS5 P72/TMO0/TEND0/CS6/SYNCI P73/TMO1/TEND1/CS7 P74/TMO2/MRES P75/TMO3/SCK3 P76/RxD3 P77/TxD3 MD0 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 102 101 100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 Vref AVCC NC NC PF0/BREQ/IRQ2 PF1/BACK/BUZZ PF2/LCAS/WAIT/BREQO PF3/LWR/ADTRG/IRQ3 PF4/HWR PF5/RD PF6/AS/LCAS VSS PF7/o PVCC1 OSC2 OSC1 VSS EXTAL VCC XTAL FWE* STBY NMI RES PLLVSS PLLCAP PLLVCC WDTOVF PG4/CS0 PG3/CS1 PG2/CS2 PG1/CS3/OE/IRQ7 PG0/CAS/IRQ6 P37/TxD4 NC NC P36/RxD4 P35/SCK1/SCK4/SCL0/IRQ5 TOP VIEW (FP-128B) 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 P34/RxD1/SDA0 P33/TxD1/SCL1 VSS P32/SCK0/SDA1/IRQ4 PVCC2 P31/RxD0/IrRxD P30/TxD0/IrTxD PD7/D15 PD6/D14 PD5/D13 PD4/D12 PD3/D11 PD2/D10 PD1/D9 PVCC1 PD0/D8 VSS PE7/D7 PE6/D6 PE5/D5 PE4/D4 PE3/D3 PE2/D2 PE1/D1 PE0/D0 P17/PO15/TIOCB2/PWM3/TCLKD 13 Note: * The FWE pin is used only in the flash memory version. In the mask ROM version the FWE pin is an NC pin, and should be left open or connected to VSS. Figure 1-3 (b) H8S/2633R Pin Arrangement (FP-128B: Top View) 14 MD1 MD2 NC NC PC0/A0 PC1/A1 PC2/A2 PC3/A3 VSS PC4/A4 VCL PC5/A5 PC6/A6/PWM0 PC7/A7/PWM1 VSS PB0/A8/TIOCA3 PVCC1 PB1/A9/TIOCB3 PB2/A10/TIOCC3 PB3/A11/TIOCD3 PB4/A12/TIOCA4 PB5/A13/TIOCB4 PB6/A14/TIOCA5 PB7/A15/TIOCB5 PA0/A16 PA1/A17/TxD2 PA2/A18/RxD2 PA3/A19/SCK2 VSS P10/PO8/TIOCA0/DACK0/A20 P11/PO9/TIOCB0/DACK1/A21 P12/PO10/TIOCC0/TCLKA/A22 P13/PO11/TIOCD0/TCLKB/A23 P14/PO12/TIOCA1/IRQ0 NC NC P15/PO13/TIOCB1/TCLKC P16/PO14/TIOCA2/PWM2/IRQ1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 P40/AN0 P41/AN1 P42/AN2 P43/AN3 P44/AN4 P45/AN5 P46/AN6/DA0 P47/AN7/DA1 P90/AN8 P91/AN9 P92/AN10 P93/AN11 P94/AN12 P95/AN13 P96/AN14/DA2 P97/AN15/DA3 AVSS P70/TMRI01/TMCI01/DREQ0/CS4 P71/TMRI23/TMCI23/DREQ1/CS5 P72/TMO0/TEND0/CS6/SYNCI P73/TMO1/TEND1/CS7 P74/TMO2/MRES P75/TMO3/SCK3 P76/RxD3 P77/TxD3 MD0 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 102 101 100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 Vref AVCC NC NC PF0/BREQ/IRQ2 PF1/BACK/BUZZ PF2/LCAS/WAIT/BREQO PF3/LWR/ADTRG/IRQ3 PF4/HWR PF5/RD PF6/AS/LCAS VSS PF7/o PVCC1 OSC2 OSC1 VSS EXTAL NC XTAL FWE* STBY NMI RES PLLVSS PLLCAP NC WDTOVF PG4/CS0 PG3/CS1 PG2/CS2 PG1/CS3/OE/IRQ7 PG0/CAS/IRQ6 P37/TxD4 NC NC P36/RxD4 P35/SCK1/SCK4/SCL0/IRQ5 TOP VIEW (FP-128B) 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 P34/RxD1/SDA0 P33/TxD1/SCL1 VSS P32/SCK0/SDA1/IRQ4 PVCC2 P31/RxD0/IrRxD P30/TxD0/IrTxD PD7/D15 PD6/D14 PD5/D13 PD4/D12 PD3/D11 PD2/D10 PD1/D9 PVCC1 PD0/D8 VSS PE7/D7 PE6/D6 PE5/D5 PE4/D4 PE3/D3 PE2/D2 PE1/D1 PE0/D0 P17/PO15/TIOCB2/PWM3/TCLKD 0.1F P40/AN0 P41/AN1 P42/AN2 P43/AN3 P44/AN4 P45/AN5 P46/AN6 P47/AN7 P90/AN8 P91/AN9 P92/AN10 P93/AN11 P94/AN12 P95/AN13 P96/AN14 P97/AN15 AVSS P70/CS4 P71/CS5 P72/CS6 P73/CS7 P74/MRES P75/SCK3 P76/RxD3 P77/TxD3 MD0 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 0.1F TOP VIEW (FP-128B) Note: * In the flash memory version this is the FWE pin. In the mask ROM version this pin should be left open or connected to VSS. MD1 MD2 NC NC PC0/A0 PC1/A1 PC2/A2 PC3/A3 VSS PC4/A4 VCL PC5/A5 PC6/A6 PC7/A7 VSS PB0/A8/TIOCA3 PVCC PB1/A9/TIOCB3 PB2/A10/TIOCC3 PB3/A11/TIOCD3 PB4/A12/TIOCA4 PB5/A13/TIOCB4 PB6/A14/TIOCA5 PB7/A15/TIOCB5 PA0/A16 PA1/A17/TxD2 PA2/A18/RxD2 PA3/A19/SCK2 VSS P10/TIOCA0/A20 P11/TIOCB0/A21 P12/TIOCC0/TCLKA/A22 P13/TIOCD0/TCLKB/A23 P14/TIOCA1/IRQ0 NC NC P15/TIOCB1/TCLKC P16/TIOCA2/IRQ1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 102 101 100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 P34/RxD1 P33/TxD1 VSS P32/SCK0/IRQ4 PVCC P31/RxD0 P30/TxD0 PD7/D15 PD6/D14 PD5/D13 PD4/D12 PD3/D11 PD2/D10 PD1/D9 PVCC PD0/D8 VSS PE7/D7 PE6/D6 PE5/D5 PE4/D4 PE3/D3 PE2/D2 PE1/D1 PE0/D0 P17/TIOCB2/TCLKD Figure 1-3 (c) H8S/2695 Pin Arrangement (FP-128B: Top View) Vref AVCC NC NC PF0/BREQ/IRQ2 PF1/BACK PF2/WAIT/BREQO PF3/LWR/ADTRG/IRQ3 PF4/HWR PF5/RD PF6/AS VSS PF7/o PVCC NC NC VSS EXTAL NC XTAL NC* STBY NMI RES PLLVSS PLLCAP NC WDTOVF PG4/CS0 PG3/CS1 PG2/CS2 PG1/CS3/IRQ7 PG0/IRQ6 P37/TxD4 NC NC P36/RxD4 P35/SCK1/SCK4/IRQ5 15 1.3.2 Pin Functions in Each Operating Mode Table 1-2 (a) shows the pin functions of the H8S/2633, H8S/2632, H8S/2631, and H8S/2633F in each of the operating modes. Table 1-2 (b) shows the pin functions of the H8S/2633R in each of the operating modes. Table 1-2 (c) shows the pin functions of the H8S/2695 in each of the operating modes. Table 1-2 (a) Pin Functions in Each Operating Mode (H8S/2633, H8S/2632, H8S/2631, H8S/2633F) Pin No. TFP-120 FP-128B Mode 4 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 A0 A1 A2 A3 VSS A4 VCC A5 A6 A7 VSS A8 PVCC1 A9 A10 A11 A12 A13 A14 A15 A16 A17 A18 A19 VSS Mode 5 A0 A1 A2 A3 VSS A4 VCC A5 A6 A7 VSS A8 PVCC1 A9 A10 A11 A12 A13 A14 A15 A16 A17 A18 A19 VSS Pin Name Mode 6 PC0/A0 PC1/A1 PC2/A2 PC3/A3 VSS PC4/A4 VCC PC5/A5 PC6/A6/PWM0 PC7/A7/PWM1 VSS PB0/A8/TIOCA3 PVCC1 PB1/A9/TIOCB3 PB2/A10/TIOCC3 PB3/A11/TIOCD3 PB4/A12/TIOCA4 PB5/A13/TIOCB4 PB6/A14/TIOCA5 PB7/A15/TIOCB5 PA0/A16 PA1/A17/TxD2 PA2/A18/RxD2 PA3/A19/SCK2 VSS Mode 7 PC0 PC1 PC2 PC3 VSS PC4 VCC PC5 PC6/PWM0 PC7/PWM1 VSS PB0/TIOCA3 PVCC1 PB1/TIOCB3 PB2/TIOCC3 PB3/TIOCD3 PB4/TIOCA4 PB5/TIOCB4 PB6/TIOCA5 PB7/TIOCB5 PA0 PA1/TxD2 PA2/RxD2 PA3/SCK2 VSS 16 Pin No. TFP-120 FP-128B Mode 4 26 27 28 29 30 -- -- 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 P10/PO8/TIOCA0/ DACK0/A20 P11/PO9/TIOCB0/ DACK1/A21 P12/PO10/TIOCC0/ TCLKA/A22 P13/PO11/TIOCD0/ TCLKB/A23 P14/PO12/TIOCA1/ IRQ0 NC NC P15/PO13/TIOCB1/ TCLKC P16/PO14/TIOCA2/ PWM2/IRQ1 P17/PO15/TIOCB2/ PWM3/TCLKD D0 D1 D2 D3 D4 D5 D6 D7 VSS D8 PVCC1 D9 D10 D11 D12 D13 D14 Mode 5 Pin Name Mode 6 P10/PO8/TIOCA0/ DACK0/A20 P11/PO9/TIOCB0/ DACK1/A21 P12/PO10/TIOCC0/ TCLKA/A22 P13/PO11/TIOCD0/ TCLKB/A23 P14/PO12/TIOCA1/ IRQ0 NC NC P15/PO13/TIOCB1/ TCLKC P16/PO14/TIOCA2/ PWM2/IRQ1 P17/PO15/TIOCB2/ PWM3/TCLKD PE0/D0 PE1/D1 PE2/D2 PE3/D3 PE4/D4 PE5/D5 PE6/D6 PE7/D7 VSS D8 PVCC1 D9 D10 D11 D12 D13 D14 Mode 7 P10/PO8/TIOCA0/ DACK0 P11/PO9/TIOCB0/ DACK1 P12/PO10/TIOCC0/ TCLKA P13/PO11/TIOCD0/ TCLKB P14/PO12/TIOCA1/ IRQ0 NC NC P15/PO13/TIOCB1/ TCLKC P16/PO14/TIOCA2/ PWM2/IRQ1 P17/PO15/TIOCB2/ PWM3/TCLKD PE0 PE1 PE2 PE3 PE4 PE5 PE6 PE7 VSS PD0 PVCC1 PD1 PD2 PD3 PD4 PD5 PD6 P10/PO8/TIOCA0/ DACK0/A20 P11/PO9/TIOCB0/ DACK1/A21 P12/PO10/TIOCC0/ TCLKA/A22 P13/PO11/TIOCD0/ TCLKB/A23 P14/PO12/TIOCA1/ IRQ0 NC NC P15/PO13/TIOCB1/ TCLKC P16/PO14/TIOCA2/ PWM2/IRQ1 P17/PO15/TIOCB2/ PWM3/TCLKD PE0/D0 PE1/D1 PE2/D2 PE3/D3 PE4/D4 PE5/D5 PE6/D6 PE7/D7 VSS D8 PVCC1 D9 D10 D11 D12 D13 D14 17 Pin No. TFP-120 FP-128B Mode 4 51 52 53 54 55 56 57 58 59 60 -- -- 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 D15 P30/TxD0/IrTxD P31/RxD0/IrRxD PVCC2 P32/SCK0/SDA1/ IRQ4 VSS P33/TxD1/SCL1 P34/RxD1/SDA0 P35/SCK1/SCK4/ SCL0/IRQ5 P36/RxD4 NC NC P37/TxD4 PG0/CAS/IRQ6 PG1/CS3/OE/IRQ7 PG2/CS2 PG3/CS1 PG4/CS0 WDTOVF PLLVCC PLLCAP PLLVSS RES NMI STBY FWE* XTAL VCC EXTAL VSS Mode 5 D15 P30/TxD0/IrTxD P31/RxD0/IrRxD PVCC2 Pin Name Mode 6 D15 P30/TxD0/IrTxD P31/RxD0/IrRxD PVCC2 P32/SCK0/SDA1/ IRQ4 VSS P33/TxD1/SCL1 P34/RxD1/SDA0 P35/SCK1/SCK4/ SCL0/IRQ5 P36/RxD4 NC NC P37/TxD4 PG0/CAS/IRQ6 PG1/CS3/OE/IRQ7 PG2/CS2 PG3/CS1 PG4/CS0 WDTOVF PLLVCC PLLCAP PLLVSS RES NMI STBY FWE* XTAL VCC EXTAL VSS Mode 7 PD7 P30/TxD0/IrTxD P31/RxD0/IrRxD PVCC2 P32/SCK0/SDA1/ IRQ4 VSS P33/TxD1/SCL1 P34/RxD1/SDA0 P35/SCK1/SCK4/ SCL0/IRQ5 P36/RxD4 NC NC P37/TxD4 PG0/IRQ6 PG1/IRQ7 PG2 PG3 PG4 WDTOVF PLLVCC PLLCAP PLLVSS RES NMI STBY FWE* XTAL VCC EXTAL VSS P32/SCK0/SDA1/ IRQ4 VSS P33/TxD1/SCL1 P34/RxD1/SDA0 P35/SCK1/SCK4/ SCL0/IRQ5 P36/RxD4 NC NC P37/TxD4 PG0/CAS/IRQ6 PG1/CS3/OE/IRQ7 PG2/CS2 PG3/CS1 PG4/CS0 WDTOVF PLLVCC PLLCAP PLLVSS RES NMI STBY FWE* XTAL VCC EXTAL VSS 18 Pin No. TFP-120 FP-128B Mode 4 79 80 81 82 83 84 85 86 87 88 89 90 -- -- 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 OSC1 OSC2 PVCC1 PF7/o VSS AS/LCAS RD HWR LWR PF2/LCAS/WAIT/ BREQO PF1/BACK/BUZZ PF0/BREQ/IRQ2 NC NC AVCC Vref P40/AN0 P41/AN1 P42/AN2 P43/AN3 P44/AN4 P45/AN5 P46/AN6/DA0 P47/AN7/DA1 P90/AN8 P91/AN9 P92/AN10 P93/AN11 P94/AN12 P95/AN13 Mode 5 OSC1 OSC2 PVCC1 PF7/o VSS AS/LCAS RD HWR Pin Name Mode 6 OSC1 OSC2 PVCC1 PF7/o VSS AS/LCAS RD HWR PF3/LWR/ADTRG/ IRQ3 PF2/LCAS/WAIT/ BREQO PF1/BACK/BUZZ PF0/BREQ/IRQ2 NC NC AVCC Vref P40/AN0 P41/AN1 P42/AN2 P43/AN3 P44/AN4 P45/AN5 P46/AN6/DA0 P47/AN7/DA1 P90/AN8 P91/AN9 P92/AN10 P93/AN11 P94/AN12 P95/AN13 Mode 7 OSC1 OSC2 PVCC1 PF7/o VSS PF6 PF5 PF4 PF3/ADTRG/IRQ3 PF2 PF1/BUZZ PF0/IRQ2 NC NC AVCC Vref P40/AN0 P41/AN1 P42/AN2 P43/AN3 P44/AN4 P45/AN5 P46/AN6/DA0 P47/AN7/DA1 P90/AN8 P91/AN9 P92/AN10 P93/AN11 P94/AN12 P95/AN13 PF3/LWR/ADTRG/ IRQ3 PF2/LCAS/WAIT/ BREQO PF1/BACK/BUZZ PF0/BREQ/IRQ2 NC NC AVCC Vref P40/AN0 P41/AN1 P42/AN2 P43/AN3 P44/AN4 P45/AN5 P46/AN6/DA0 P47/AN7/DA1 P90/AN8 P91/AN9 P92/AN10 P93/AN11 P94/AN12 P95/AN13 19 Pin No. TFP-120 FP-128B Mode 4 107 108 109 110 111 112 113 114 115 116 117 118 119 120 -- -- 117 118 119 120 121 122 123 124 125 126 127 128 1 2 3 4 P96/AN14/DA2 P97/AN15/DA3 AVSS Mode 5 P96/AN14/DA2 P97/AN15/DA3 AVSS Pin Name Mode 6 P96/AN14/DA2 P97/AN15/DA3 AVSS Mode 7 P96/AN14/DA2 P97/AN15/DA3 AVSS P70/TMRI01/TMCI01/ P70/TMRI01/TMCI01/ P70/TMRI01/TMCI01/ P70/TMRI01/TMCI01/ DREQ0/CS4 DREQ0/CS4 DREQ0/CS4 DREQ0 P71/TMRI23/TMCI23/ P71/TMRI23/TMCI23/ P71/TMRI23/TMCI23/ P71/TMRI23/TMCI23/ DREQ1/CS5 DREQ1/CS5 DREQ1/CS5 DREQ1 P72/TMO0/TEND0/ CS6/SYNCI P73/TMO1/TEND1/ CS7 P74/TMO2/MRES P75/TMO3/SCK3 P76/RxD3 P77/TxD3 MD0 MD1 MD2 NC NC P72/TMO0/TEND0/ CS6/SYNCI P73/TMO1/TEND1/ CS7 P74/TMO2/MRES P75/TMO3/SCK3 P76/RxD3 P77/TxD3 MD0 MD1 MD2 NC NC P72/TMO0/TEND0/ CS6/SYNCI P73/TMO1/TEND1/ CS7 P74/TMO2/MRES P75/TMO3/SCK3 P76/RxD3 P77/TxD3 MD0 MD1 MD2 NC NC P72/TMO0/TEND0/ SYNCI P73/TMO1/TEND1 P74/TMO2/MRES P75/TMO3/SCK3 P76/RxD3 P77/TxD3 MD0 MD1 MD2 NC NC Notes: NC pins should be connected to VSS or left open. * FWE is used only in the flash memory version. Leave open or connect VSS in the mask ROM version. 20 Table 1-2 (b) Pin Functions in Each Operating Mode (H8S/2633R) Pin No. TFP-120 FP-128B Mode 4 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 17 18 19 20 21 22 23 24 25 26 27 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 21 22 23 24 25 26 27 28 29 30 31 A0 A1 A2 A3 VSS A4 VCL A5 A6 A7 VSS A8 PVCC1 A9 A11 A12 A13 A14 A15 A16 A17 A18 A19 VSS P10/PO8/TIOCA0/ DACK0/A20 P11/PO9/TIOCB0/ DACK1/A21 Mode 5 A0 A1 A2 A3 VSS A4 VCL A5 A6 A7 VSS A8 PVCC1 A9 A11 A12 A13 A14 A15 A16 A17 A18 A19 VSS P10/PO8/TIOCA0/ DACK0/A20 P11/PO9/TIOCB0/ DACK1/A21 Pin Name Mode 6 PC0/A0 PC1/A1 PC2/A2 PC3/A3 VSS PC4/A4 VCL PC5/A5 PC6/A6/PWM0 PC7/A7/PWM1 VSS PB0/A8/TIOCA3 PVCC1 PB1/A9/TIOCB3 PB3/A11/TIOCD3 PB4/A12/TIOCA4 PB5/A13/TIOCB4 PB6/A14/TIOCA5 PB7/A15/TIOCB5 PA0/A16 PA1/A17/TxD2 PA2/A18/RxD2 PA3/A19/SCK2 VSS P10/PO8/TIOCA0/ DACK0/A20 P11/PO9/TIOCB0/ DACK1/A21 Mode 7 PC0 PC1 PC2 PC3 VSS PC4 VCL PC5 PC6/PWM0 PC7/PWM1 VSS PB0/TIOCA3 PVCC1 PB1/TIOCB3 PB3/TIOCD3 PB4/TIOCA4 PB5/TIOCB4 PB6/TIOCA5 PB7/TIOCB5 PA0 PA1/TxD2 PA2/RxD2 PA3/SCK2 VSS P10/PO8/TIOCA0/ DACK0 P11/PO9/TIOCB0/ DACK1 21 Pin No. TFP-120 FP-128B Mode 4 28 29 30 -- -- 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 P12/PO10/TIOCC0/ TCLKA/A22 P13/PO11/TIOCD0/ TCLKB/A23 P14/PO12/TIOCA1/ IRQ0 NC NC P15/PO13/TIOCB1/ TCLKC P16/PO14/TIOCA2/ PWM2/IRQ1 P17/PO15/TIOCB2/ PWM3/TCLKD D0 D1 D2 D3 D4 D5 D6 D7 VSS D8 PVCC1 D9 D10 D11 D12 D13 D14 D15 P30/TxD0/IrTxD Mode 5 Pin Name Mode 6 P12/PO10/TIOCC0/ TCLKA/A22 P13/PO11/TIOCD0/ TCLKB/A23 P14/PO12/TIOCA1/ IRQ0 NC NC P15/PO13/TIOCB1/ TCLKC P16/PO14/TIOCA2/ PWM2/IRQ1 P17/PO15/TIOCB2/ PWM3/TCLKD PE0/D0 PE1/D1 PE2/D2 PE3/D3 PE4/D4 PE5/D5 PE6/D6 PE7/D7 VSS D8 PVCC1 D9 D10 D11 D12 D13 D14 D15 P30/TxD0/IrTxD Mode 7 P12/PO10/TIOCC0/ TCLKA P13/PO11/TIOCD0/ TCLKB P14/PO12/TIOCA1/ IRQ0 NC NC P15/PO13/TIOCB1/ TCLKC P16/PO14/TIOCA2/ PWM2/IRQ1 P17/PO15/TIOCB2/ PWM3/TCLKD PE0 PE1 PE2 PE3 PE4 PE5 PE6 PE7 VSS PD0 PVCC1 PD1 PD2 PD3 PD4 PD5 PD6 PD7 P30/TxD0/IrTxD P12/PO10/TIOCC0/ TCLKA/A22 P13/PO11/TIOCD0/ TCLKB/A23 P14/PO12/TIOCA1/ IRQ0 NC NC P15/PO13/TIOCB1/ TCLKC P16/PO14/TIOCA2/ PWM2/IRQ1 P17/PO15/TIOCB2/ PWM3/TCLKD PE0/D0 PE1/D1 PE2/D2 PE3/D3 PE4/D4 PE5/D5 PE6/D6 PE7/D7 VSS D8 PVCC1 D9 D10 D11 D12 D13 D14 D15 P30/TxD0/IrTxD 22 Pin No. TFP-120 FP-128B Mode 4 53 54 55 56 57 58 59 60 -- -- 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 P31/RxD0/IrRxD PVCC2 P32/SCK0/SDA1/ IRQ4 VSS P33/TxD1/SCL1 P34/RxD1/SDA0 P35/SCK1/SCK4/ SCL0/IRQ5 P36/RxD4 NC NC P37/TxD4 PG0/CAS/IRQ6 PG1/CS3/OE/IRQ7 PG2/CS2 PG3/CS1 PG4/CS0 WDTOVF NC PLLCAP PLLVSS RES NMI STBY FWE XTAL NC EXTAL VSS OSC1 Mode 5 P31/RxD0/IrRxD PVCC2 Pin Name Mode 6 P31/RxD0/IrRxD PVCC2 P32/SCK0/SDA1/ IRQ4 VSS P33/TxD1/SCL1 P34/RxD1/SDA0 P35/SCK1/SCK4/ SCL0/IRQ5 P36/RxD4 NC NC P37/TxD4 PG0/CAS/IRQ6 PG1/CS3/OE/IRQ7 PG2/CS2 PG3/CS1 PG4/CS0 WDTOVF NC PLLCAP PLLVSS RES NMI STBY FWE XTAL NC EXTAL VSS OSC1 Mode 7 P31/RxD0/IrRxD PVCC2 P32/SCK0/SDA1/ IRQ4 VSS P33/TxD1/SCL1 P34/RxD1/SDA0 P35/SCK1/SCK4/ SCL0/IRQ5 P36/RxD4 NC NC P37/TxD4 PG0/IRQ6 PG1/IRQ7 PG2 PG3 PG4 WDTOVF NC PLLCAP PLLVSS RES NMI STBY FWE XTAL NC EXTAL VSS OSC1 P32/SCK0/SDA1/ IRQ4 VSS P33/TxD1/SCL1 P34/RxD1/SDA0 P35/SCK1/SCK4/ SCL0/IRQ5 P36/RxD4 NC NC P37/TxD4 PG0/CAS/IRQ6 PG1/CS3/OE/IRQ7 PG2/CS2 PG3/CS1 PG4/CS0 WDTOVF NC PLLCAP PLLVSS RES NMI STBY FWE XTAL NC EXTAL VSS OSC1 23 Pin No. TFP-120 FP-128B Mode 4 80 81 82 83 84 85 86 87 88 89 90 -- -- 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 OSC2 PVCC1 PF7/o VSS AS/LCAS RD HWR LWR PF2/LCAS/WAIT/ BREQO PF1/BACK/BUZZ PF0/BREQ/IRQ2 NC NC AVCC Vref P40/AN0 P41/AN1 P42/AN2 P43/AN3 P44/AN4 P45/AN5 P46/AN6/DA0 P47/AN7/DA1 P90/AN8 P91/AN9 P92/AN10 P93/AN11 P94/AN12 P95/AN13 Mode 5 OSC2 PVCC1 PF7/o VSS AS/LCAS RD HWR Pin Name Mode 6 OSC2 PVCC1 PF7/o VSS AS/LCAS RD HWR PF3/LWR/ADTRG/ IRQ3 PF2/LCAS/WAIT/ BREQO PF1/BACK/BUZZ PF0/BREQ/IRQ2 NC NC AVCC Vref P40/AN0 P41/AN1 P42/AN2 P43/AN3 P44/AN4 P45/AN5 P46/AN6/DA0 P47/AN7/DA1 P90/AN8 P91/AN9 P92/AN10 P93/AN11 P94/AN12 P95/AN13 Mode 7 OSC2 PVCC1 PF7/o VSS PF6 PF5 PF4 PF3/ADTRG/IRQ3 PF2 PF1/BUZZ PF0/IRQ2 NC NC AVCC Vref P40/AN0 P41/AN1 P42/AN2 P43/AN3 P44/AN4 P45/AN5 P46/AN6/DA0 P47/AN7/DA1 P90/AN8 P91/AN9 P92/AN10 P93/AN11 P94/AN12 P95/AN13 PF3/LWR/ADTRG/ IRQ3 PF2/LCAS/WAIT/ BREQO PF1/BACK/BUZZ PF0/BREQ/IRQ2 NC NC AVCC Vref P40/AN0 P41/AN1 P42/AN2 P43/AN3 P44/AN4 P45/AN5 P46/AN6/DA0 P47/AN7/DA1 P90/AN8 P91/AN9 P92/AN10 P93/AN11 P94/AN12 P95/AN13 24 Pin No. TFP-120 FP-128B Mode 4 107 108 109 110 111 112 113 114 115 116 117 118 119 120 -- -- 117 118 119 120 121 122 123 124 125 126 127 128 1 2 3 4 P96/AN14/DA2 P97/AN15/DA3 AVSS Mode 5 P96/AN14/DA2 P97/AN15/DA3 AVSS Pin Name Mode 6 P96/AN14/DA2 P97/AN15/DA3 AVSS Mode 7 P96/AN14/DA2 P97/AN15/DA3 AVSS P70/TMRI01/TMCI01/ P70/TMRI01/TMCI01/ P70/TMRI01/TMCI01/ P70/TMRI01/TMCI01/ DREQ0/CS4 DREQ0/CS4 DREQ0/CS4 DREQ0 P71/TMRI23/TMCI23/ P71/TMRI23/TMCI23/ P71/TMRI23/TMCI23/ P71/TMRI23/TMCI23/ DREQ1/CS5 DREQ1/CS5 DREQ1/CS5 DREQ1 P72/TMO0/TEND0/ CS6/SYNCI P73/TMO1/TEND1/ CS7 P74/TMO2/MRES P75/TMO3/SCK3 P76/RxD3 P77/TxD3 MD0 MD1 MD2 NC NC P72/TMO0/TEND0/ CS6/SYNCI P73/TMO1/TEND1/ CS7 P74/TMO2/MRES P75/TMO3/SCK3 P76/RxD3 P77/TxD3 MD0 MD1 MD2 NC NC P72/TMO0/TEND0/ CS6/SYNCI P73/TMO1/TEND1/ CS7 P74/TMO2/MRES P75/TMO3/SCK3 P76/RxD3 P77/TxD3 MD0 MD1 MD2 NC NC P72/TMO0/TEND0/ SYNCI P73/TMO1/TEND1 P74/TMO2/MRES P75/TMO3/SCK3 P76/RxD3 P77/TxD3 MD0 MD1 MD2 NC NC Note: NC pins should be connected to VSS or left open. 25 Table 1-2 (c) Pin Functions in Each Operating Mode (H8S/2695) Pin No. FP-128B 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 Mode 4 A0 A1 A2 A3 VSS A4 VCL A5 A6 A7 VSS A8 PVCC1 A9 A10 A11 A12 A13 A14 A15 A16 A17 A18 A19 VSS P10/TIOCA0/A20 P11/TIOCB0/A21 P12/TIOCC0/ TCLKA/A22 P13/TIOCD0/ TCLKB/A23 P14/TIOCA1/IRQ0 Mode 5 A0 A1 A2 A3 VSS A4 VCL A5 A6 A7 VSS A8 PVCC1 A9 A10 A11 A12 A13 A14 A15 A16 A17 A18 A19 VSS P10/TIOCA0/A20 P11/TIOCB0/A21 P12/TIOCC0/ TCLKA/A22 P13/TIOCD0/ TCLKB/A23 P14/TIOCA1/IRQ0 Pin Name Mode 6 PC0/A0 PC1/A1 PC2/A2 PC3/A3 VSS PC4/A4 VCL PC5/A5 PC6/A6 PC7/A7 VSS PB0/A8/TIOCA3 PVCC1 PB1/A9/TIOCB3 PB2/A10/TIOCC3 PB3/A11/TIOCD3 PB4/A12/TIOCA4 PB5/A13/TIOCB4 PB6/A14/TIOCA5 PB7/A15/TIOCB5 PA0/A16 PA1/A17/TxD2 PA2/A18/RxD2 PA3/A19/SCK2 VSS P10/TIOCA0/A20 P11/TIOCB0/A21 P12/TIOCC0/ TCLKA/A22 P13/TIOCD0/ TCLKB/A23 P14/TIOCA1/IRQ0 Mode 7 PC0 PC1 PC2 PC3 VSS PC4 VCL PC5 PC6 PC7 VSS PB0/TIOCA3 PVCC1 PB1/TIOCB3 PB2/TIOCC3 PB3/TIOCD3 PB4/TIOCA4 PB5/TIOCB4 PB6/TIOCA5 PB7/TIOCB5 PA0 PA1/TxD2 PA2/RxD2 PA3/SCK2 VSS P10/TIOCA0 P11/TIOCB0 P12/TIOCC0/ TCLKA P13/TIOCD0/ TCLKB P14/TIOCA1/IRQ0 26 Pin No. FP-128B 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 Mode 4 NC NC Mode 5 NC NC Pin Name Mode 6 NC NC Mode 7 NC NC P15/TIOCB1/TCLKC P15/TIOCB1/TCLKC P15/TIOCB1/TCLKC P15/TIOCB1/TCLKC P16/TIOCA2/IRQ1 P16/TIOCA2/IRQ1 P16/TIOCA2/IRQ1 P16/TIOCA2/IRQ1 P17/TIOCB2/TCLKD P17/TIOCB2/TCLKD P17/TIOCB2/TCLKD P17/TIOCB2/TCLKD D0 D1 D2 D3 D4 D5 D6 D7 VSS D8 PVCC1 D9 D10 D11 D12 D13 D14 D15 P30/TxD0 P31/RxD0 PVCC2 P32/SCK0/IRQ4 VSS P33/TxD1 P34/RxD1 P35/SCK1/SCK4/ IRQ5 PE0/D0 PE1/D1 PE2/D2 PE3/D3 PE4/D4 PE5/D5 PE6/D6 PE7/D7 VSS D8 PVCC1 D9 D10 D11 D12 D13 D14 D15 P30/TxD0 P31/RxD0 PVCC2 P32/SCK0/IRQ4 VSS P33/TxD1 P34/RxD1 P35/SCK1/SCK4/ IRQ5 PE0/D0 PE1/D1 PE2/D2 PE3/D3 PE4/D4 PE5/D5 PE6/D6 PE7/D7 VSS D8 PVCC1 D9 D10 D11 D12 D13 D14 D15 P30/TxD0 P31/RxD0 PVCC2 P32/SCK0/IRQ4 VSS P33/TxD1 P34/RxD1 P35/SCK1/SCK4/ IRQ5 PE0 PE1 PE2 PE3 PE4 PE5 PE6 PE7 VSS PD0 PVCC1 PD1 PD2 PD3 PD4 PD5 PD6 PD7 P30/TxD0 P31/RxD0 PVCC2 P32/SCK0/IRQ4 VSS P33/TxD1 P34/RxD1 P35/SCK1/SCK4/ IRQ5 27 Pin No. FP-128B 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 Mode 4 P36/RxD4 NC NC P37/TxD4 PG0/IRQ6 PG1/CS3/IRQ7 PG2/CS2 PG3/CS1 PG4/CS0 WDTOVF NC PLLCAP PLLVSS RES NMI STBY NC* XTAL NC EXTAL VSS NC NC PVCC1 PF7/o VSS AS RD HWR LWR PF2/WAIT/BREQO Mode 5 P36/RxD4 NC NC P37/TxD4 PG0/IRQ6 PG1/CS3/IRQ7 PG2/CS2 PG3/CS1 PG4/CS0 WDTOVF NC PLLCAP PLLVSS RES NMI STBY NC* XTAL NC EXTAL VSS NC NC PVCC1 PF7/o VSS AS RD HWR Pin Name Mode 6 P36/RxD4 NC NC P37/TxD4 PG0/IRQ6 PG1/CS3/IRQ7 PG2/CS2 PG3/CS1 PG4/CS0 WDTOVF NC PLLCAP PLLVSS RES NMI STBY NC* XTAL NC EXTAL VSS NC NC PVCC1 PF7/o VSS AS RD HWR PF3/LWR/ADTRG/ IRQ3 PF2/WAIT/BREQO Mode 7 P36/RxD4 NC NC P37/TxD4 PG0/IRQ6 PG1/IRQ7 PG2 PG3 PG4 WDTOVF NC PLLCAP PLLVSS RES NMI STBY NC* XTAL NC EXTAL VSS NC NC PVCC1 PF7/o VSS PF6 PF5 PF4 PF3/ADTRG/IRQ3 PF2 PF3/LWR/ADTRG/ IRQ3 PF2/WAIT/BREQO 28 Pin No. FP-128B 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 Mode 4 PF1/BACK PF0/BREQ/IRQ2 NC NC AVCC Vref P40/AN0 P41/AN1 P42/AN2 P43/AN3 P44/AN4 P45/AN5 P46/AN6 P47/AN7 P90/AN8 P91/AN9 P92/AN10 P93/AN11 P94/AN12 P95/AN13 P96/AN14 P97/AN15 AVSS P70/CS4 P71/CS5 P72/CS6 P73/CS7 P74/MRES P75/SCK3 P76/RxD3 P77/TxD3 Mode 5 PF1/BACK PF0/BREQ/IRQ2 NC NC AVCC Vref P40/AN0 P41/AN1 P42/AN2 P43/AN3 P44/AN4 P45/AN5 P46/AN6 P47/AN7 P90/AN8 P91/AN9 P92/AN10 P93/AN11 P94/AN12 P95/AN13 P96/AN14 P97/AN15 AVSS P70/CS4 P71/CS5 P72/CS6 P73/CS7 P74/MRES P75/SCK3 P76/RxD3 P77/TxD3 Pin Name Mode 6 PF1/BACK PF0/BREQ/IRQ2 NC NC AVCC Vref P40/AN0 P41/AN1 P42/AN2 P43/AN3 P44/AN4 P45/AN5 P46/AN6 P47/AN7 P90/AN8 P91/AN9 P92/AN10 P93/AN11 P94/AN12 P95/AN13 P96/AN14 P97/AN15 AVSS P70/CS4 P71/CS5 P72/CS6 P73/CS7 P74/MRES P75/SCK3 P76/RxD3 P77/TxD3 Mode 7 PF1 PF0/IRQ2 NC NC AVCC Vref P40/AN0 P41/AN1 P42/AN2 P43/AN3 P44/AN4 P45/AN5 P46/AN6 P47/AN7 P90/AN8 P91/AN9 P92/AN10 P93/AN11 P94/AN12 P95/AN13 P96/AN14 P97/AN15 AVSS P70 P71 P72 P73 P74/MRES P75/SCK3 P76/RxD3 P77/TxD3 29 Pin No. FP-128B 128 1 2 3 4 Mode 4 MD0 MD1 MD2 NC NC Mode 5 MD0 MD1 MD2 NC NC Pin Name Mode 6 MD0 MD1 MD2 NC NC Mode 7 MD0 MD1 MD2 NC NC Notes: NC pins should be connected to VSS or left open. * In the flash memory version this is the FWE pin. 30 1.3.3 Pin Functions Table 1-3 (a) outlines the pin functions of the H8S/2633, H8S/2632, H8S/2631 and H8S/2633F. Table 1-3 (b) outlines the pin functions of the H8S/2633R. Table 1-3 (c) outlines the pin functions of the H8S/2695. Table 1-3 (a) Pin Functions (H8S/2633, H8S/2632, H8S/2631, H8S/2633F) Type Power Symbol VCC I/O Input Name and Function Power supply: For connection to the power supply. All VCC pins should be connected to the system power supply. Port power supply pin. Connect all pins to the same power supply. Ground: For connection to ground (0 V). All VSS pins should be connected to the system power supply (0 V). PLL power supply: Power supply for on-chip PLL oscillator. PLL ground: Ground for on-chip PLL oscillator. PLL capacitance: External capacitance pin for on-chip PLL oscillator. Connects to a crystal oscillator. See section 23A, Clock Pulse Generator (H8S/2633, H8S/2632, H8S/2631, H8S/2633F), for typical connection diagrams for a crystal oscillator and external clock input. Connects to a crystal oscillator. The EXTAL pin can also input an external clock. See section 23A, Clock Pulse Generator (H8S/2633, H8S/2632, H8S/2631, H8S/2633F), for typical connection diagrams for a crystal oscillator and external clock input. Subclock: Connects to a 32.768 kHz crystal oscillator. See section 23A, Clock Pulse Generator (H8S/2633, H8S/2632, H8S/2631, H8S/2633F), for examples of connections to a crystal oscillator. Subclock: Connects to a 32.768 kHz crystal oscillator. See section 23A, Clock Pulse Generator (H8S/2633, H8S/2632, H8S/2631, H8S/2633F), for examples of connections to a crystal oscillator. System clock: Supplies the system clock to an external device. PVCC1, PVCC2 VSS Input Input Clock PLLVCC PLLVSS PLLCAP XTAL Input Input Input Input EXTAL Input OSC1 Input OSC2 Input o Output 31 Type Operating mode control Symbol MD2 to MD0 I/O Input Name and Function Mode pins: These pins set the operating mode. The relation between the settings of pins MD2 to MD0 and the operating mode is shown below. These pins should not be changed while the H8S/2633 Series is operating. MD2 0 MD1 0 MD0 0 1 1 0 1 1 0 0 1 1 0 1 Operating Mode -- -- -- -- Mode 4 Mode 5 Mode 6 Mode 7 System control RES MRES STBY BREQ BREQO Input Input Input Input Output Reset input: When this pin is driven low, the chip is reset. Manual reset: When this pin is driven low, a transmission is made to manual reset mode. Standby: When this pin is driven low, a transition is made to hardware standby mode. Bus request: Used by an external bus master to issue a bus request to the H8S/2633 Series. Bus request output: The external bus request signal used when an internal bus master accesses external space in the external bus-released state. Bus request acknowledge: Indicates that the bus has been released to an external bus master. Flash write enable: Pin for flash memory use (in planning stage). BACK FWE Output Input 32 Type Interrupts Symbol NMI I/O Input Name and Function Nonmaskable interrupt: Requests a nonmaskable interrupt. When this pin is not used, it should be fixed high. Interrupt request 7 to 0: These pins request a maskable interrupt. Address bus: These pins output an address. Data bus: These pins constitute a bidirectional data bus. Chip select: Selection signal for areas 0 to 7. Address strobe: When this pin is low, it indicates that address output on the address bus is enabled. Read: When this pin is low, it indicates that the external address space can be read. High write/write enable/upper write enable: A strobe signal that writes to external space and indicates that the upper half (D15 to D8) of the data bus is enabled. The 2CAS type DRAM write enable signal. The 2WE type DRAM upper write enable signal. Low write/lower column address strobe/lower write enable: A strobe signal that writes to external space and indicates that the lower half (D7 to D0) of the data bus is enabled. The 2CAS type (LCASS = 1) DRAM lower column address strobe signal. The 2WE type DRAM lower write enable signal. Upper column address strobe/column address strobe: The 2CAS type DRAM upper column address strobe signal. Lower column address strobe: The 2CAS type DRAM lower column address strobe signal. Output enable: Output enable signal for DRAM space read access. Wait: Requests insertion of a wait state in the bus cycle when accessing external 3-state address space. IRQ7 to IRQ0 Input Address bus Data bus Bus control A23 to A0 D15 to D0 CS7 to CS0 AS RD HWR Output I/O Output Output Output Output LWR Output CAS Output LCAS Output OE WAIT Output Input 33 Type DMA controller (DMAC) Symbol DREQ1, DREQ0 TEND1, TEND0 DACK1, DACK0 I/O Input Output Output Input I/O Name and Function DMA request 1,0: Requests DMAC activation. DMA transfer completed 1,0: Indicates DMAC data transfer end. DMA transfer acknowledge 1,0: DMAC single address transfer acknowledge pin. Clock input D to A: These pins input an external clock. Input capture/ output compare match A0 to D0: The TGR0A to TGR0D input capture input or output compare output, or PWM output pins. Input capture/ output compare match A1 and B1: The TGR1A and TGR1B input capture input or output compare output, or PWM output pins. Input capture/ output compare match A2 and B2: The TGR2A and TGR2B input capture input or output compare output, or PWM output pins. Input capture/ output compare match A3 to D3: The TGR3A to TGR3D input capture input or output compare output, or PWM output pins. Input capture/output compare match A4 and B4: The TGR4A and TGR4B input capture input or output compare output, or PWM output pins. Input capture/output compare match A5 and B5: The TGR5A and TGR5B input capture input or output compare output, or PWM output pins. Pulse output 15 to 8: Pulse output pins. 16-bit timerpulse unit (TPU) TCLKD to TCLKA TIOCA0, TIOCB0, TIOCC0, TIOCD0 TIOCA1, TIOCB1 TIOCA2, TIOCB2 TIOCA3, TIOCB3, TIOCC3, TIOCD3 TIOCA4, TIOCB4 TIOCA5, TIOCB5 I/O I/O I/O I/O I/O Programmable pulse generator (PPG) 8-bit timer PO15 to PO8 Output TMO0 to TMO3 TMCI01, TMCI23 TMRI01, TMRI23 Output Input Input Compare match output: The compare match output pins. Counter external clock input: Input pins for the external clock input to the counter. Counter external reset input: The counter reset input pins. 34 Type Symbol I/O Output Output Output Output Name and Function PWMX timer output: PWM D/A pulse output pins. Watchdog timer overflows: The counter overflows signal output pin in watchdog timer mode. BUZZ output: Output pins for the pulse divided by the watchdog timer. Transmit data (channel 0, 1, 2): Data output pins. 14-bit PWM timer PWM0 to (PWMX) PWM3 Watchdog timer (WDT) WDTOVF BUZZ Serial communication interface (SCI)/ Smart Card interface TxD4, TxD3, TxD2, TxD1, TxD0 RxD4, RxD3, RxD2, RxD1, RxD0 SCK4, SCK3, SCK2, SCK1 SCK0 IrDA-equipped SCI 1 channel (SCI0) IrTxD IrRxD Input Receive data (channel 0, 1, 2): Data input pins. I/O Serial clock (channel 0, 1, 2): Clock I/O pins. SCK0 output type is NMOS push-pull. Output/ Input I/O IrDA transmission data/receive data: Input/output pins for the data encoded for the IrDA. I 2C clock input (channel 1, 0): I 2C clock input/output pins. These functions have a bus driving function. SCL0's output format is an NMOS open drain. I 2C data input/output (channel 1, 0): I 2C clock input/output pins. These functions have a bus driving function. SCL0's output format is an NMOS open drain. Analog 15 to 0: Analog input pins. A/D conversion external trigger input: Pin for input of an external trigger to start A/D conversion. Analog output: Analog output pins for D/A converter. A/D converter and D/A converter power supply pin. When the A/D converter and D/A converter are not used, this pin should be connected to the system power supply (+5 V). I 2C bus interface SCL0 (IIC) (optional) SCL1 SDA0 SDA1 I/O A/D converter AN15 to AN0 Input ADTRG Input Output Input D/A converter A/D converter, D/A converter DA3 to DA0 AVCC 35 Type A/D converter, D/A converter Symbol AVSS I/O Input Name and Function Analog circuit ground and reference voltage A/D converter and D/A converter ground and reference voltage. Connect to system power supply (0 V). Vref Input A/D converter and D/A converter reference voltage input pin. When the A/D converter and D/A converter are not used, this pin should be connected to the system power supply (+5 V). I/O ports P17 to P10 I/O Port 1: An 8-bit I/O port. Input or output can be designated for each bit by means of the port 1 data direction register (P1DDR). Port 3: An 8-bit I/O port. Input or output can be designated for each bit by means of the port 3 data direction register (P3DDR). Port 4: An 8-bit input port. Port 7: An 8-bit I/O port. Input or output can be designated for each bit by means of the port 7 data direction register (P7DDR). Port 9: An 8-bit input port. Port A: A 4-bit I/O port. Input or output can be designated for each bit by means of the port A data direction register (PADDR). Port B: An 8-bit I/O port. Input or output can be designated for each bit by means of the port B data direction register (PBDDR). Port C: An 8-bit I/O port. Input or output can be designated for each bit by means of the port C data direction register (PCDDR). Port D: An 8-bit I/O port. Input or output can be designated for each bit by means of the port D data direction register (PDDDR). Port E: An 8-bit I/O port. Input or output can be designated for each bit by means of the port E data direction register (PEDDR). Port F: An 8-bit I/O port. Input or output can be designated for each bit by means of the port F data direction register (PFDDR). Port G: An 5-bit I/O port. Input or output can be designated for each bit by means of the port G data direction register (PGDDR). P37 to P30 I/O P47 to P40 P77 to P70 Input I/O P97 to P90 PA3 to PA0 Input I/O PB7 to PB0 I/O PC7 to PC0 I/O PD7 to PD0 I/O PE7 to PE0 I/O PF7 to PF0 I/O PG4 to PG0 I/O 36 Table 1-3 (b) Pin Functions (H8S/2633R) Type Power Symbol VCL I/O Output Name and Function On-chip power supply stabilizer pin: The VCL pin need not be connected to the power supply. Connect this pin to VSS via a 0.1 F capacitor (placed close to the pins). Port power supply pin. Connect all pins to the same power supply. Ground: For connection to ground (0 V). All VSS pins should be connected to the system power supply (0 V). PLL ground: Ground for on-chip PLL oscillator. PLL capacitance: External capacitance pin for on-chip PLL oscillator. Connects to a crystal oscillator. See section 23B, Clock Pulse Generator (H8S/2633R, H8S/2695), for typical connection diagrams for a crystal oscillator and external clock input. Connects to a crystal oscillator. The EXTAL pin can also input an external clock. See section 23B, Clock Pulse Generator (H8S/2633R, H8S/2695), for typical connection diagrams for a crystal oscillator and external clock input. Subclock: Connects to a 32.768 kHz crystal oscillator. See section 23B, Clock Pulse Generator (H8S/2633R, H8S/2695), for examples of connections to a crystal oscillator. Subclock: Connects to a 32.768 kHz crystal oscillator. See section 23B, Clock Pulse Generator (H8S/2633R, H8S/2695), for examples of connections to a crystal oscillator. System clock: Supplies the system clock to an external device. PVCC1, PVCC2 VSS Input Input Clock PLLVSS PLLCAP XTAL Input Input Input EXTAL Input OSC1 Input OSC2 Input o Output 37 Type Operating mode control Symbol MD2 to MD0 I/O Input Name and Function Mode pins: These pins set the operating mode. The relation between the settings of pins MD2 to MD0 and the operating mode is shown below. These pins should not be changed while the H8S/2633 Series is operating. MD2 0 MD1 0 MD0 0 1 1 0 1 1 0 0 1 1 0 1 Operating Mode -- -- -- -- Mode 4 Mode 5 Mode 6 Mode 7 System control RES MRES STBY BREQ BREQO Input Input Input Input Output Reset input: When this pin is driven low, the chip is reset. Manual reset: When this pin is driven low, a transmission is made to manual reset mode. Standby: When this pin is driven low, a transition is made to hardware standby mode. Bus request: Used by an external bus master to issue a bus request to the H8S/2633 Series. Bus request output: The external bus request signal used when an internal bus master accesses external space in the external bus-released state. Bus request acknowledge: Indicates that the bus has been released to an external bus master. Flash write enable: Pin for flash memory use (in planning stage). BACK FWE Output Input 38 Type Interrupts Symbol NMI I/O Input Name and Function Nonmaskable interrupt: Requests a nonmaskable interrupt. When this pin is not used, it should be fixed high. Interrupt request 7 to 0: These pins request a maskable interrupt. Address bus: These pins output an address. Data bus: These pins constitute a bidirectional data bus. Chip select: Selection signal for areas 0 to 7. Address strobe: When this pin is low, it indicates that address output on the address bus is enabled. Read: When this pin is low, it indicates that the external address space can be read. High write/write enable/upper write enable: A strobe signal that writes to external space and indicates that the upper half (D15 to D8) of the data bus is enabled. The 2CAS type DRAM write enable signal. The 2WE type DRAM upper write enable signal. Low write/lower column address strobe/lower write enable: A strobe signal that writes to external space and indicates that the lower half (D7 to D0) of the data bus is enabled. The 2CAS type (LCASS = 1) DRAM lower column address strobe signal. The 2WE type DRAM lower write enable signal. Upper column address strobe/column address strobe: The 2CAS type DRAM upper column address strobe signal. Lower column address strobe: The 2CAS type DRAM lower column address strobe signal. Output enable: Output enable signal for DRAM space read access. Wait: Requests insertion of a wait state in the bus cycle when accessing external 3-state address space. IRQ7 to IRQ0 Input Address bus Data bus Bus control A23 to A0 D15 to D0 CS7 to CS0 AS RD HWR Output I/O Output Output Output Output LWR Output CAS Output LCAS Output OE WAIT Output Input 39 Type DMA controller (DMAC) Symbol DREQ1, DREQ0 TEND1, TEND0 DACK1, DACK0 I/O Input Output Output Input I/O Name and Function DMA request 1,0: Requests DMAC activation. DMA transfer completed 1,0: Indicates DMAC data transfer end. DMA transfer acknowledge 1,0: DMAC single address transfer acknowledge pin. Clock input D to A: These pins input an external clock. Input capture/ output compare match A0 to D0: The TGR0A to TGR0D input capture input or output compare output, or PWM output pins. Input capture/ output compare match A1 and B1: The TGR1A and TGR1B input capture input or output compare output, or PWM output pins. Input capture/ output compare match A2 and B2: The TGR2A and TGR2B input capture input or output compare output, or PWM output pins. Input capture/ output compare match A3 to D3: The TGR3A to TGR3D input capture input or output compare output, or PWM output pins. Input capture/output compare match A4 and B4: The TGR4A and TGR4B input capture input or output compare output, or PWM output pins. Input capture/output compare match A5 and B5: The TGR5A and TGR5B input capture input or output compare output, or PWM output pins. Pulse output 15 to 8: Pulse output pins. 16-bit timerpulse unit (TPU) TCLKD to TCLKA TIOCA0, TIOCB0, TIOCC0, TIOCD0 TIOCA1, TIOCB1 TIOCA2, TIOCB2 TIOCA3, TIOCB3, TIOCC3, TIOCD3 TIOCA4, TIOCB4 TIOCA5, TIOCB5 I/O I/O I/O I/O I/O Programmable pulse generator (PPG) 8-bit timer PO15 to PO8 Output TMO0 to TMO3 TMCI01, TMCI23 TMRI01, TMRI23 Output Input Input Compare match output: The compare match output pins. Counter external clock input: Input pins for the external clock input to the counter. Counter external reset input: The counter reset input pins. 40 Type Symbol I/O Output Output Output Output Name and Function PWMX timer output: PWM D/A pulse output pins. Watchdog timer overflows: The counter overflows signal output pin in watchdog timer mode. BUZZ output: Output pins for the pulse divided by the watchdog timer. Transmit data (channel 0, 1, 2): Data output pins. 14-bit PWM timer PWM0 to (PWMX) PWM3 Watchdog timer (WDT) WDTOVF BUZZ Serial communication interface (SCI)/ Smart Card interface TxD4, TxD3, TxD2, TxD1, TxD0 RxD4, RxD3, RxD2, RxD1, RxD0 SCK4, SCK3, SCK2, SCK1 SCK0 IrDA-equipped SCI 1 channel (SCI0) IrTxD IrRxD Input Receive data (channel 0, 1, 2): Data input pins. I/O Serial clock (channel 0, 1, 2): Clock I/O pins. SCK0 output type is NMOS push-pull. Output/ Input I/O IrDA transmission data/receive data: Input/output pins for the data encoded for the IrDA. I 2C clock input (channel 1, 0): I 2C clock input/output pins. These functions have a bus driving function. SCL0's output format is an NMOS open drain. I 2C data input/output (channel 1, 0): I 2C clock input/output pins. These functions have a bus driving function. SCL0's output format is an NMOS open drain. Analog 15 to 0: Analog input pins. A/D conversion external trigger input: Pin for input of an external trigger to start A/D conversion. Analog output: Analog output pins for D/A converter. A/D converter and D/A converter power supply pin. When the A/D converter and D/A converter are not used, this pin should be connected to the system power supply (+5 V). I 2C bus interface SCL0 (IIC) SCL1 SDA0 SDA1 I/O A/D converter AN15 to AN0 Input ADTRG Input Output Input D/A converter A/D converter, D/A converter DA3 to DA0 AVCC 41 Type A/D converter, D/A converter Symbol AVSS I/O Input Name and Function Analog circuit ground and reference voltage A/D converter and D/A converter ground and reference voltage. Connect to system power supply (0 V). Vref Input A/D converter and D/A converter reference voltage input pin. When the A/D converter and D/A converter are not used, this pin should be connected to the system power supply (+5 V). I/O ports P17 to P10 I/O Port 1: An 8-bit I/O port. Input or output can be designated for each bit by means of the port 1 data direction register (P1DDR). Port 3: An 8-bit I/O port. Input or output can be designated for each bit by means of the port 3 data direction register (P3DDR). Port 4: An 8-bit input port. Port 7: An 8-bit I/O port. Input or output can be designated for each bit by means of the port 7 data direction register (P7DDR). Port 9: An 8-bit input port. Port A: A 4-bit I/O port. Input or output can be designated for each bit by means of the port A data direction register (PADDR). Port B: An 8-bit I/O port. Input or output can be designated for each bit by means of the port B data direction register (PBDDR). Port C: An 8-bit I/O port. Input or output can be designated for each bit by means of the port C data direction register (PCDDR). Port D: An 8-bit I/O port. Input or output can be designated for each bit by means of the port D data direction register (PDDDR). Port E: An 8-bit I/O port. Input or output can be designated for each bit by means of the port E data direction register (PEDDR). Port F: An 8-bit I/O port. Input or output can be designated for each bit by means of the port F data direction register (PFDDR). Port G: An 5-bit I/O port. Input or output can be designated for each bit by means of the port G data direction register (PGDDR). P37 to P30 I/O P47 to P40 P77 to P70 Input I/O P97 to P90 PA3 to PA0 Input I/O PB7 to PB0 I/O PC7 to PC0 I/O PD7 to PD0 I/O PE7 to PE0 I/O PF7 to PF0 I/O PG4 to PG0 I/O 42 Table 1-3 (c) Pin Functions (H8S/2695) Type Power Symbol VCL I/O Output Name and Function On-chip power supply stabilizer pin: The VCL pin need not be connected to the power supply. Connect this pin to VSS via a 0.1 F capacitor (placed close to the pins). Port power supply pin. Connect all pins to the same power supply. Ground: For connection to ground (0 V). All VSS pins should be connected to the system power supply (0 V). PLL ground: Ground for on-chip PLL oscillator. PLL capacitance: External capacitance pin for on-chip PLL oscillator. Connects to a crystal oscillator. See section 23B, Clock Pulse Generator (H8S/2633R, H8S/2695), for typical connection diagrams for a crystal oscillator and external clock input. Connects to a crystal oscillator. The EXTAL pin can also input an external clock. See section 23B, Clock Pulse Generator (H8S/2633R, H8S/2695), for typical connection diagrams for a crystal oscillator and external clock input. System clock: Supplies the system clock to an external device. Mode pins: These pins set the operating mode. The relation between the settings of pins MD2 to MD0 and the operating mode is shown below. These pins should not be changed while the H8S/2633 Series is operating. MD2 0 MD1 0 MD0 0 1 1 0 1 1 0 0 1 1 0 1 Operating Mode -- -- -- -- Mode 4 Mode 5 Mode 6 Mode 7 PVCC VSS Input Input Clock PLLVSS PLLCAP XTAL Input Input Input EXTAL Input o Operating mode control MD2 to MD0 Output Input 43 Type System control Symbol RES MRES STBY BREQ BREQO I/O Input Input Input Input Output Name and Function Reset input: When this pin is driven low, the chip is reset. Manual reset: When this pin is driven low, a transmission is made to manual reset mode. Standby: When this pin is driven low, a transition is made to hardware standby mode. Bus request: Used by an external bus master to issue a bus request to the H8S/2633 Series. Bus request output: The external bus request signal used when an internal bus master accesses external space in the external bus-released state. Bus request acknowledge: Indicates that the bus has been released to an external bus master. Nonmaskable interrupt: Requests a nonmaskable interrupt. When this pin is not used, it should be fixed high. Interrupt request 7 to 0: These pins request a maskable interrupt. Address bus: These pins output an address. Data bus: These pins constitute a bidirectional data bus. Chip select: Selection signal for areas 0 to 7. Address strobe: When this pin is low, it indicates that address output on the address bus is enabled. Read: When this pin is low, it indicates that the external address space can be read. High write/write enable/upper write enable: A strobe signal that writes to external space and indicates that the upper half (D15 to D8) of the data bus is enabled. The 2CAS type DRAM write enable signal. The 2WE type DRAM upper write enable signal. Low write/lower column address strobe/lower write enable: A strobe signal that writes to external space and indicates that the lower half (D7 to D0) of the data bus is enabled. The 2CAS type (LCASS = 1) DRAM lower column address strobe signal. The 2WE type DRAM lower write enable signal. Wait: Requests insertion of a wait state in the bus cycle when accessing external 3-state address space. BACK Interrupts NMI Output Input IRQ7 to IRQ0 Input Address bus Data bus Bus control A23 to A0 D15 to D0 CS7 to CS0 AS RD HWR Output I/O Output Output Output Output LWR Output WAIT Input 44 Type 16-bit timerpulse unit (TPU) Symbol TCLKD to TCLKA TIOCA0, TIOCB0, TIOCC0, TIOCD0 TIOCA1, TIOCB1 TIOCA2, TIOCB2 TIOCA3, TIOCB3, TIOCC3, TIOCD3 TIOCA4, TIOCB4 TIOCA5, TIOCB5 I/O Input I/O Name and Function Clock input D to A: These pins input an external clock. Input capture/ output compare match A0 to D0: The TGR0A to TGR0D input capture input or output compare output, or PWM output pins. Input capture/ output compare match A1 and B1: The TGR1A and TGR1B input capture input or output compare output, or PWM output pins. Input capture/ output compare match A2 and B2: The TGR2A and TGR2B input capture input or output compare output, or PWM output pins. Input capture/ output compare match A3 to D3: The TGR3A to TGR3D input capture input or output compare output, or PWM output pins. Input capture/output compare match A4 and B4: The TGR4A and TGR4B input capture input or output compare output, or PWM output pins. Input capture/output compare match A5 and B5: The TGR5A and TGR5B input capture input or output compare output, or PWM output pins. Watchdog timer overflows: The counter overflows signal output pin in watchdog timer mode. Transmit data (channel 0, 1, 2): Data output pins. I/O I/O I/O I/O I/O Watchdog timer (WDT) Serial communication interface (SCI)/ Smart Card interface WDTOVF TxD4, TxD3, TxD2, TxD1, TxD0 RxD4, RxD3, RxD2, RxD1, RxD0 SCK4, SCK3, SCK2, SCK1 SCK0 Output Output Input Receive data (channel 0, 1, 2): Data input pins. I/O Serial clock (channel 0, 1, 2): Clock I/O pins. SCK0 output type is NMOS push-pull. 45 Type A/D converter Symbol I/O Name and Function Analog 15 to 0: Analog input pins. A/D conversion external trigger input: Pin for input of an external trigger to start A/D conversion. A/D converter power supply pin. When the A/D converter are not used, this pin should be connected to the system power supply (+5 V). AN15 to AN0 Input ADTRG AVCC Input Input AVSS Input Analog circuit ground and reference voltage A/D converter ground and reference voltage. Connect to system power supply (0 V). Vref Input A/D converter reference voltage input pin. When the A/D converter are not used, this pin should be connected to the system power supply (+5 V). I/O ports P17 to P10 I/O Port 1: An 8-bit I/O port. Input or output can be designated for each bit by means of the port 1 data direction register (P1DDR). Port 3: An 8-bit I/O port. Input or output can be designated for each bit by means of the port 3 data direction register (P3DDR). Port 4: An 8-bit input port. Port 7: An 8-bit I/O port. Input or output can be designated for each bit by means of the port 7 data direction register (P7DDR). Port 9: An 8-bit input port. Port A: A 4-bit I/O port. Input or output can be designated for each bit by means of the port A data direction register (PADDR). Port B: An 8-bit I/O port. Input or output can be designated for each bit by means of the port B data direction register (PBDDR). Port C: An 8-bit I/O port. Input or output can be designated for each bit by means of the port C data direction register (PCDDR). Port D: An 8-bit I/O port. Input or output can be designated for each bit by means of the port D data direction register (PDDDR). P37 to P30 I/O P47 to P40 P77 to P70 Input I/O P97 to P90 PA3 to PA0 Input I/O PB7 to PB0 I/O PC7 to PC0 I/O PD7 to PD0 I/O 46 Type I/O ports Symbol PE7 to PE0 I/O I/O Name and Function Port E: An 8-bit I/O port. Input or output can be designated for each bit by means of the port E data direction register (PEDDR). Port F: An 8-bit I/O port. Input or output can be designated for each bit by means of the port F data direction register (PFDDR). Port G: An 5-bit I/O port. Input or output can be designated for each bit by means of the port G data direction register (PGDDR). PF7 to PF0 I/O PG4 to PG0 I/O 47 48 Section 2 CPU 2.1 Overview The H8S/2600 CPU is a high-speed central processing unit with an internal 32-bit architecture that is upward-compatible with the H8/300 and H8/300H CPUs. The H8S/2600 CPU has sixteen 16-bit general registers, can address a 16-Mbyte (architecturally 4-Gbyte) linear address space, and is ideal for realtime control. 2.1.1 Features The H8S/2600 CPU has the following features. * Upward-compatible with H8/300 and H8/300H CPUs Can execute H8/300 and H8/300H object programs * General-register architecture Sixteen 16-bit general registers (also usable as sixteen 8-bit registers or eight 32-bit registers) * Sixty-nine basic instructions 8/16/32-bit arithmetic and logic instructions Multiply and divide instructions Powerful bit-manipulation instructions Multiply-and-accumulate instruction * Eight addressing modes Register direct [Rn] Register indirect [@ERn] Register indirect with displacement [@(d:16,ERn) or @(d:32,ERn)] Register indirect with post-increment or pre-decrement [@ERn+ or @-ERn] Absolute address [@aa:8, @aa:16, @aa:24, or @aa:32] Immediate [#xx:8, #xx:16, or #xx:32] Program-counter relative [@(d:8,PC) or @(d:16,PC)] Memory indirect [@@aa:8] * 16-Mbyte address space Program: 16 Mbytes Data: 16 Mbytes (4 Gbytes architecturally) 49 * High-speed operation All frequently-used instructions execute in one or two states Maximum clock rate : 25 MHz (H8S/2633, H8S/2632, H8S/2631, H8S/2633F), 28 MHz (H8S/2633R, H8S/2695) 8/16/32-bit register-register add/subtract : 40 ns (25 MHz), 35 ns (28 MHz) 8 x 8-bit register-register multiply : 120 ns (25 MHz), 105 ns (28 MHz) 16 / 8-bit register-register divide : 480 ns (25 MHz), 420 ns (28 MHz) 16 x 16-bit register-register multiply : 160 ns (25 MHz), 140 ns (28 MHz) 32 / 16-bit register-register divide : 800 ns (25 MHz), 700 ns (28 MHz) * Two CPU operating modes Normal mode* Advanced mode Note: * Not available in the H8S/2633 Series. * Power-down state Transition to power-down state by SLEEP instruction CPU clock speed selection 2.1.2 Differences between H8S/2600 CPU and H8S/2000 CPU The differences between the H8S/2600 CPU and the H8S/2000 CPU are as shown below. * Register configuration The MAC register is supported only by the H8S/2600 CPU. * Basic instructions The four instructions MAC, CLRMAC, LDMAC, and STMAC are supported only by the H8S/2600 CPU. * Number of execution states The number of execution states of the MULXU and MULXS instructions is different in each CPU. 50 Execution States Instruction MULXU Mnemonic MULXU.B Rs, Rd MULXU.W Rs, ERd MULXS MULXS.B Rs, Rd MULXS.W Rs, ERd H8S/2600 3 4 4 5 H8S/2000 12 20 13 21 In addition, there are differences in address space, CCR and EXR register functions, power-down modes, etc., depending on the model. 2.1.3 Differences from H8/300 CPU In comparison to the H8/300 CPU, the H8S/2600 CPU has the following enhancements. * More general registers and control registers Eight 16-bit expanded registers, and one 8-bit and two 32-bit control registers, have been added. * Expanded address space Normal mode* supports the same 64-kbyte address space as the H8/300 CPU. Advanced mode supports a maximum 16-Mbyte address space. Note: * Not available in the H8S/2633 Series. * Enhanced addressing The addressing modes have been enhanced to make effective use of the 16-Mbyte address space. * Enhanced instructions Addressing modes of bit-manipulation instructions have been enhanced. Signed multiply and divide instructions have been added. A multiply-and-accumulate instruction has been added. Two-bit shift instructions have been added. Instructions for saving and restoring multiple registers have been added. A test and set instruction has been added. * Higher speed Basic instructions execute twice as fast. 51 2.1.4 Differences from H8/300H CPU In comparison to the H8/300H CPU, the H8S/2600 CPU has the following enhancements. * Additional control register One 8-bit and two 32-bit control registers have been added * Enhanced instructions Addressing modes of bit-manipulation instructions have been enhanced A multiply-and-accumulate instruction has been added Two-bit shift instructions have been added Instructions for saving and restoring multiple registers have been added A test and set instruction has been added * Higher speed Basic instructions execute twice as fast 2.2 CPU Operating Modes The H8S/2600 CPU has two operating modes: normal and advanced. Normal mode* supports a maximum 64-kbyte address space. Advanced mode supports a maximum 16-Mbyte total address space (architecturally a maximum 16-Mbyte program area and a maximum of 4 Gbytes for program and data areas combined). The mode is selected by the mode pins of the microcontroller. Note: * Not available in the H8S/2633 Series. Maximum 64 kbytes, program and data areas combined Normal mode* CPU operating modes Advanced mode Maximum 16-Mbytes for program and data areas combined Note: * Not available in the H8S/2633 Series. Figure 2-1 CPU Operating Modes 52 (1) Normal Mode (Not Available in the H8S/2633 Series) The exception vector table and stack have the same structure as in the H8/300 CPU. Address Space: A maximum address space of 64 kbytes can be accessed. Extended Registers (En): The extended registers (E0 to E7) can be used as 16-bit registers, or as the upper 16-bit segments of 32-bit registers. When En is used as a 16-bit register it can contain any value, even when the corresponding general register (Rn) is used as an address register. If the general register is referenced in the register indirect addressing mode with pre-decrement (@-Rn) or post-increment (@Rn+) and a carry or borrow occurs, however, the value in the corresponding extended register (En) will be affected. Instruction Set: All instructions and addressing modes can be used. Only the lower 16 bits of effective addresses (EA) are valid. Exception Vector Table and Memory Indirect Branch Addresses: In normal mode the top area starting at H'0000 is allocated to the exception vector table. One branch address is stored per 16 bits (figure 2-2). The exception vector table differs depending on the microcontroller. For details of the exception vector table, see section 4, Exception Handling. H'0000 H'0001 H'0002 H'0003 H'0004 H'0005 H'0006 H'0007 H'0008 H'0009 H'000A H'000B Power-on reset exception vector Manual reset exception vector (Reserved for system use) Exception vector table Exception vector 1 Exception vector 2 Figure 2-2 Exception Vector Table (Normal Mode) The memory indirect addressing mode (@@aa:8) employed in the JMP and JSR instructions uses an 8-bit absolute address included in the instruction code to specify a memory operand that contains a branch address. In normal mode the operand is a 16-bit word operand, providing a 16bit branch address. Branch addresses can be stored in the top area from H'0000 to H'00FF. Note that this area is also used for the exception vector table. 53 Stack Structure: When the program counter (PC) is pushed onto the stack in a subroutine call, and the PC, condition-code register (CCR), and extended control register (EXR) are pushed onto the stack in exception handling, they are stored as shown in figure 2-3. When EXR is invalid, it is not pushed onto the stack. For details, see section 4, Exception Handling. SP PC (16 bits) SP *2 (SP ) EXR*1 Reserved*1*3 CCR CCR*3 PC (16 bits) (a) Subroutine Branch (b) Exception Handling Notes: *1 When EXR is not used it is not stored on the stack. *2 SP when EXR is not used. *3 Ignored when returning. Figure 2-3 Stack Structure in Normal Mode (2) Advanced Mode Address Space: Linear access is provided to a 16-Mbyte maximum address space (architecturally a maximum 16-Mbyte program area and a maximum 4-Gbyte data area, with a maximum of 4 Gbytes for program and data areas combined). Extended Registers (En): The extended registers (E0 to E7) can be used as 16-bit registers, or as the upper 16-bit segments of 32-bit registers or address registers. Instruction Set: All instructions and addressing modes can be used. 54 Exception Vector Table and Memory Indirect Branch Addresses: In advanced mode the top area starting at H'00000000 is allocated to the exception vector table in units of 32 bits. In each 32 bits, the upper 8 bits are ignored and a branch address is stored in the lower 24 bits (figure 2-4). For details of the exception vector table, see section 4, Exception Handling. H'00000000 Reserved Power-on reset exception vector H'00000003 H'00000004 Reserved Manual reset exception vector H'00000007 H'00000008 Exception vector table H'0000000B H'0000000C (Reserved for system use) H'00000010 Reserved Exception vector 1 Figure 2-4 Exception Vector Table (Advanced Mode) The memory indirect addressing mode (@@aa:8) employed in the JMP and JSR instructions uses an 8-bit absolute address included in the instruction code to specify a memory operand that contains a branch address. In advanced mode the operand is a 32-bit longword operand, providing a 32-bit branch address. The upper 8 bits of these 32 bits are a reserved area that is regarded as H'00. Branch addresses can be stored in the area from H'00000000 to H'000000FF. Note that the first part of this range is also the exception vector table. 55 Stack Structure: In advanced mode, when the program counter (PC) is pushed onto the stack in a subroutine call, and the PC, condition-code register (CCR), and extended control register (EXR) are pushed onto the stack in exception handling, they are stored as shown in figure 2-5. When EXR is invalid, it is not pushed onto the stack. For details, see section 4, Exception Handling. SP SP Reserved PC (24 bits) *2 (SP ) EXR*1 Reserved*1*3 CCR PC (24 bits) (a) Subroutine Branch (b) Exception Handling Notes: *1 When EXR is not used it is not stored on the stack. *2 SP when EXR is not used. *3 Ignored when returning. Figure 2-5 Stack Structure in Advanced Mode 56 2.3 Address Space Figure 2-6 shows a memory map of the H8S/2600 CPU. The H8S/2600 CPU provides linear access to a maximum 64-kbyte address space in normal mode, and a maximum 16-Mbyte (architecturally 4-Gbyte) address space in advanced mode. H'0000 H'00000000 H'FFFF Program area H'00FFFFFF Data area Cannot be used by the H8S/2633 Series H'FFFFFFFF (a) Normal Mode* Note: * Not available in the H8S/2633 Series. (b) Advanced Mode Figure 2-6 Memory Map 57 2.4 2.4.1 Register Configuration Overview The CPU has the internal registers shown in figure 2-7. There are two types of registers: general registers and control registers. General Registers (Rn) and Extended Registers (En) 15 ER0 ER1 ER2 ER3 ER4 ER5 ER6 ER7 (SP) Control Registers (CR) 23 PC 76543210 EXR T -- -- -- -- I2 I1 I0 76543210 CCR I UI H U N Z V C 63 MAC 31 Legend SP: PC: EXR: T: I2 to I0: CCR: I: UI: Sign extension MACL 0 41 MACH 32 0 E0 E1 E2 E3 E4 E5 E6 E7 07 R0H R1H R2H R3H R4H R5H R6H R7H 07 R0L R1L R2L R3L R4L R5L R6L R7L 0 Stack pointer Program counter Extended control register Trace bit Interrupt mask bits Condition-code register Interrupt mask bit User bit or interrupt mask bit* H: U: N: Z: V: C: MAC: Half-carry flag User bit Negative flag Zero flag Overflow flag Carry flag Multiply-accumulate register Note: * Cannot be used as an interrupt mask bit in the H8S/2633 Series. Figure 2-7 CPU Registers 58 2.4.2 General Registers The CPU has eight 32-bit general registers. These general registers are all functionally alike and can be used as both address registers and data registers. When a general register is used as a data register, it can be accessed as a 32-bit, 16-bit, or 8-bit register. When the general registers are used as 32-bit registers or address registers, they are designated by the letters ER (ER0 to ER7). The ER registers divide into 16-bit general registers designated by the letters E (E0 to E7) and R (R0 to R7). These registers are functionally equivalent, providing a maximum sixteen 16-bit registers. The E registers (E0 to E7) are also referred to as extended registers. The R registers divide into 8-bit general registers designated by the letters RH (R0H to R7H) and RL (R0L to R7L). These registers are functionally equivalent, providing a maximum sixteen 8-bit registers. Figure 2-8 illustrates the usage of the general registers. The usage of each register can be selected independently. * Address registers * 32-bit registers * 16-bit registers E registers (extended registers) (E0 to E7) * 8-bit registers ER registers (ER0 to ER7) R registers (R0 to R7) RH registers (R0H to R7H) RL registers (R0L to R7L) Figure 2-8 Usage of General Registers 59 General register ER7 has the function of stack pointer (SP) in addition to its general-register function, and is used implicitly in exception handling and subroutine calls. Figure 2-9 shows the stack. Free area SP (ER7) Stack area Figure 2-9 Stack 2.4.3 Control Registers The control registers are the 24-bit program counter (PC), 8-bit extended control register (EXR), 8-bit condition-code register (CCR), and 64-bit multiply-accumulate register (MAC). (1) Program Counter (PC): This 24-bit counter indicates the address of the next instruction the CPU will execute. The length of all CPU instructions is 2 bytes (one word), so the least significant PC bit is ignored. (When an instruction is fetched, the least significant PC bit is regarded as 0.) (2) Extended Control Register (EXR): This 8-bit register contains the trace bit (T) and three interrupt mask bits (I2 to I0). Bit 7--Trace Bit (T): Selects trace mode. When this bit is cleared to 0, instructions are executed in sequence. When this bit is set to 1, a trace exception is generated each time an instruction is executed. Bits 6 to 3--Reserved: They are always read as 1. 60 Bits 2 to 0--Interrupt Mask Bits (I2 to I0): These bits designate the interrupt mask level (0 to 7). For details, refer to section 5, Interrupt Controller. Operations can be performed on the EXR bits by the LDC, STC, ANDC, ORC, and XORC instructions. All interrupts, including NMI, are disabled for three states after one of these instructions is executed, except for STC. (3) Condition-Code Register (CCR): This 8-bit register contains internal CPU status information, including an interrupt mask bit (I) and half-carry (H), negative (N), zero (Z), overflow (V), and carry (C) flags. Bit 7--Interrupt Mask Bit (I): Masks interrupts other than NMI when set to 1. (NMI is accepted regardless of the I bit setting.) The I bit is set to 1 by hardware at the start of an exceptionhandling sequence. For details, refer to section 5, Interrupt Controller. Bit 6--User Bit or Interrupt Mask Bit (UI): Can be written and read by software using the LDC, STC, ANDC, ORC, and XORC instructions. This bit can also be used as an interrupt mask bit. For details, refer to section 5, Interrupt Controller. Bit 5--Half-Carry Flag (H): When the ADD.B, ADDX.B, SUB.B, SUBX.B, CMP.B, or NEG.B instruction is executed, this flag is set to 1 if there is a carry or borrow at bit 3, and cleared to 0 otherwise. When the ADD.W, SUB.W, CMP.W, or NEG.W instruction is executed, the H flag is set to 1 if there is a carry or borrow at bit 11, and cleared to 0 otherwise. When the ADD.L, SUB.L, CMP.L, or NEG.L instruction is executed, the H flag is set to 1 if there is a carry or borrow at bit 27, and cleared to 0 otherwise. Bit 4--User Bit (U): Can be written and read by software using the LDC, STC, ANDC, ORC, and XORC instructions. Bit 3--Negative Flag (N): Stores the value of the most significant bit (sign bit) of data. Bit 2--Zero Flag (Z): Set to 1 to indicate zero data, and cleared to 0 to indicate non-zero data. Bit 1--Overflow Flag (V): Set to 1 when an arithmetic overflow occurs, and cleared to 0 at other times. Bit 0--Carry Flag (C): Set to 1 when a carry occurs, and cleared to 0 otherwise. Used by: * Add instructions, to indicate a carry * Subtract instructions, to indicate a borrow * Shift and rotate instructions, to store the value shifted out of the end bit The carry flag is also used as a bit accumulator by bit manipulation instructions. 61 Some instructions leave some or all of the flag bits unchanged. For the action of each instruction on the flag bits, refer to Appendix A.1, Instruction List. Operations can be performed on the CCR bits by the LDC, STC, ANDC, ORC, and XORC instructions. The N, Z, V, and C flags are used as branching conditions for conditional branch (Bcc) instructions. (4) Multiply-Accumulate Register (MAC): This 64-bit register stores the results of multiplyand-accumulate operations. It consists of two 32-bit registers denoted MACH and MACL. The lower 10 bits of MACH are valid; the upper bits are a sign extension. 2.4.4 Initial Register Values Reset exception handling loads the CPU's program counter (PC) from the vector table, clears the trace bit in EXR to 0, and sets the interrupt mask bits in CCR and EXR to 1. The other CCR bits and the general registers are not initialized. In particular, the stack pointer (ER7) is not initialized. The stack pointer should therefore be initialized by an MOV.L instruction executed immediately after a reset. 62 2.5 Data Formats The CPU can process 1-bit, 4-bit (BCD), 8-bit (byte), 16-bit (word), and 32-bit (longword) data. Bit-manipulation instructions operate on 1-bit data by accessing bit n (n = 0, 1, 2, ..., 7) of byte operand data. The DAA and DAS decimal-adjust instructions treat byte data as two digits of 4-bit BCD data. 2.5.1 General Register Data Formats Figure 2-10 shows the data formats in general registers. Data Type Register Number Data Format 1-bit data RnH 7 0 76543210 Don't care 1-bit data RnL Don't care 7 0 76543210 4-bit BCD data RnH 7 Upper 43 Lower 0 Don't care 4-bit BCD data RnL Don't care 7 Upper 43 Lower 0 Byte data RnH 7 MSB 0 Don't care LSB 7 Don't care MSB LSB 0 Byte data RnL Figure 2-10 General Register Data Formats 63 Data Type Register Number Data Format Word data Rn 15 MSB 0 LSB Word data 15 MSB Longword data 31 MSB En 0 LSB ERn 16 15 En Rn 0 LSB Legend ERn: General register ER En: General register E Rn: General register R RnH: General register RH RnL: General register RL MSB: Most significant bit LSB: Least significant bit Figure 2-10 General Register Data Formats (cont) 64 2.5.2 Memory Data Formats Figure 2-11 shows the data formats in memory. The CPU can access word data and longword data in memory, but word or longword data must begin at an even address. If an attempt is made to access word or longword data at an odd address, no address error occurs but the least significant bit of the address is regarded as 0, so the access starts at the preceding address. This also applies to instruction fetches. Data Type Address 7 1-bit data Address L 7 6 5 4 3 2 1 0 0 Data Format Byte data Address L MSB LSB Word data Address 2M MSB Address 2M + 1 LSB Longword data Address 2N MSB Address 2N + 1 Address 2N + 2 Address 2N + 3 LSB Figure 2-11 Memory Data Formats When ER7 is used as an address register to access the stack, the operand size should be word size or longword size. 65 2.6 2.6.1 Instruction Set Overview The H8S/2600 CPU has 69 types of instructions. The instructions are classified by function in table 2-1. Table 2-1 Function Data transfer Instruction Classification Instructions MOV POP* , PUSH* LDM, STM MOVFPE* , MOVTPE* 3 3 1 1 Size BWL WL L B BWL B BWL L BW WL B -- BWL Types 5 Arithmetic operations ADD, SUB, CMP, NEG ADDX, SUBX, DAA, DAS INC, DEC ADDS, SUBS MULXU, DIVXU, MULXS, DIVXS EXTU, EXTS TAS* 4 23 MAC, LDMAC, STMAC, CLRMAC Logic operations Shift Bit manipulation Branch System control AND, OR, XOR, NOT 4 8 14 5 9 1 SHAL, SHAR, SHLL, SHLR, ROTL, ROTR, ROTXL, ROTXR BWL BSET, BCLR, BNOT, BTST, BLD, BILD, BST, BIST, BAND, BIAND, BOR, BIOR, BXOR, BIXOR Bcc* 2, JMP, BSR, JSR, RTS B -- TRAPA, RTE, SLEEP, LDC, STC, ANDC, ORC, XORC, NOP -- -- Block data transfer EEPMOV Notes: B-byte size; W-word size; L-longword size. *1 POP.W Rn and PUSH.W Rn are identical to MOV.W @SP+, Rn and MOV.W Rn, @-SP. POP.L ERn and PUSH.L ERn are identical to MOV.L @SP+, ERn and MOV.L ERn, @-SP. *2 Bcc is the general name for conditional branch instructions. *3 Not available in the H8S/2633 Series. *4 When using the TAS instruction, use register ER0, ER1, ER4, or ER5. 66 2.6.2 Addressing Modes Table 2-2 Function #xx Instruction Rn @ERn @(d:16,ERn) @(d:32,ERn) @-ERn/@ERn+ @aa:8 @aa:16 @aa:24 @aa:32 @(d:8,PC) @(d:16,PC) @@aa:8 Data transfer POP, PUSH LDM, STM MOVEPE*1, MOVTPE*1 -- BWL WL B -- -- -- -- -- -- -- -- -- -- -- L -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- B -- -- -- -- -- -- -- -- WL -- -- -- -- -- -- BWL -- -- -- -- -- -- -- -- -- -- -- -- BW -- -- -- -- -- -- -- BW -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- B -- -- -- -- -- -- -- -- BWL -- -- -- -- -- -- -- -- L -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- B -- -- -- -- -- -- -- -- -- BWL -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- BWL -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- B -- -- -- -- ADD, CMP SUB ADDX, SUBX ADDS, SUBS INC, DEC DAA, DAS -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- L -- -- -- -- -- -- -- -- -- -- -- -- -- MOV BWL BWL BWL BWL BWL BWL B BWL -- BWL -- -- -- -- WL Instructions and Addressing Modes Arithmetic operations MULXU, DIVXU MULXS, DIVXS NEG EXTU, EXTS TAS*2 MAC CLRMAC LDMAC, STMAC -- Table 2-2 indicates the combinations of instructions and addressing modes that the H8S/2600 CPU can use. Combinations of Instructions and Addressing Modes 67 #xx Rn @ERn @(d:16,ERn) @(d:32,ERn) @-ERn/@ERn+ @aa:8 @aa:16 @aa:24 @aa:32 @(d:8,PC) @(d:16,PC) @@aa:8 Logic operations AND, OR, XOR NOT Shift Bit manipulation -- -- -- -- -- -- -- B -- B -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- B W W W W B W W W W -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- W W -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- B B -- -- -- B B -- Branch JMP, JSR RTS System control RTE SLEEP LDC STC ANDC, ORC, XORC NOP Block data transfer Legend B: Byte W: Word L: Longword Notes: *1 Not available in the H8S/2633 Series. *2 When using the TAS instruction, use register ER0, ER1, ER4, or ER5. BWL -- -- B -- -- -- -- -- -- W W -- -- -- -- -- -- -- -- -- -- -- -- -- BWL -- -- -- -- -- -- -- -- BWL -- -- -- -- -- -- -- -- -- -- -- BWL -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Bcc, BSR TRAPA -- -- -- BW -- 68 Addressing Modes Function Instruction 2.6.3 Table of Instructions Classified by Function Table 2-3 summarizes the instructions in each functional category. The notation used in table 2-3 is defined below. Operation Notation Rd Rs Rn ERn MAC (EAd) (EAs) EXR CCR N Z V C PC SP #IMM disp + - x / :8/:16/:24/:32 General register (destination)* General register (source)* General register* General register (32-bit register) Multiply-accumulate register (32-bit register) Destination operand Source operand Extended control register Condition-code register N (negative) flag in CCR Z (zero) flag in CCR V (overflow) flag in CCR C (carry) flag in CCR Program counter Stack pointer Immediate data Displacement Addition Subtraction Multiplication Division Logical AND Logical OR Logical exclusive OR Move NOT (logical complement) 8-, 16-, 24-, or 32-bit length Note: * General registers include 8-bit registers (R0H to R7H, R0L to R7L), 16-bit registers (R0 to R7, E0 to E7), and 32-bit registers (ER0 to ER7). 69 Table 2-3 Type Data transfer Instructions Classified by Function Instruction MOV Size* 1 B/W/L Function (EAs) Rd, Rs (Ead) Moves data between two general registers or between a general register and memory, or moves immediate data to a general register. Cannot be used in the H8S/2633 Series. Cannot be used in the H8S/2633 Series. @SP+ Rn Pops a register from the stack. POP.W Rn is identical to MOV.W @SP+, Rn. POP.L ERn is identical to MOV.L @SP+, ERn. Rn @-SP Pushes a register onto the stack. PUSH.W Rn is identical to MOV.W Rn, @-SP. PUSH.L ERn is identical to MOV.L ERn, @-SP. @SP+ Rn (register list) Pops two or more general registers from the stack. Rn (register list) @-SP Pushes two or more general registers onto the stack. Rd Rs Rd, Rd #IMM Rd Performs addition or subtraction on data in two general registers, or on immediate data and data in a general register. (Immediate byte data cannot be subtracted from byte data in a general register. Use the SUBX or ADD instruction.) Rd Rs C Rd, Rd #IMM C Rd Performs addition or subtraction with carry or borrow on byte data in two general registers, or on immediate data and data in a general register. Rd 1 Rd, Rd 2 Rd Increments or decrements a general register by 1 or 2. (Byte operands can be incremented or decremented by 1 only.) Rd 1 Rd, Rd 2 Rd, Rd 4 Rd Adds or subtracts the value 1, 2, or 4 to or from data in a 32-bit register. Rd decimal adjust Rd Decimal-adjusts an addition or subtraction result in a general register by referring to the CCR to produce 4-bit BCD data. MOVFPE MOVTPE POP B B W/L PUSH W/L LDM STM Arithmetic operations ADD SUB L L B/W/L ADDX SUBX B INC DEC B/W/L ADDS SUBS DAA DAS L B 70 Type Arithmetic operations Instruction MULXU Size* 1 B/W Function Rd x Rs Rd Performs unsigned multiplication on data in two general registers: either 8 bits x 8 bits 16 bits or 16 bits x 16 bits 32 bits. Rd x Rs Rd Performs signed multiplication on data in two general registers: either 8 bits x 8 bits 16 bits or 16 bits x 16 bits 32 bits. Rd / Rs Rd Performs unsigned division on data in two general registers: either 16 bits / 8 bits 8-bit quotient and 8-bit remainder or 32 bits / 16 bits 16-bit quotient and 16bit remainder. Rd / Rs Rd Performs signed division on data in two general registers: either 16 bits / 8 bits 8-bit quotient and 8-bit remainder or 32 bits / 16 bits 16-bit quotient and 16bit remainder. Rd - Rs, Rd - #IMM Compares data in a general register with data in another general register or with immediate data, and sets CCR bits according to the result. 0 - Rd Rd Takes the two's complement (arithmetic complement) of data in a general register. Rd (zero extension) Rd Extends the lower 8 bits of a 16-bit register to word size, or the lower 16 bits of a 32-bit register to longword size, by padding with zeros on the left. Rd (sign extension) Rd Extends the lower 8 bits of a 16-bit register to word size, or the lower 16 bits of a 32-bit register to longword size, by extending the sign bit. @ERd - 0, 1 ( MULXS B/W DIVXU B/W DIVXS B/W CMP B/W/L NEG B/W/L EXTU W/L EXTS W/L TAS* 2 B MAC -- 71 Type Arithmetic operations Instruction CLRMAC LDMAC STMAC Size* 1 -- L Function 0 MAC Clears the multiply-accumulate register to zero. Rs MAC, MAC Rd Transfers data between a general register and a multiply-accumulate register. Rd Rs Rd, Rd #IMM Rd Performs a logical AND operation on a general register and another general register or immediate data. Rd Rs Rd, Rd #IMM Rd Performs a logical OR operation on a general register and another general register or immediate data. Rd Rs Rd, Rd #IMM Rd Performs a logical exclusive OR operation on a general register and another general register or immediate data. (Rd) (Rd) Takes the one's complement of general register contents. Rd (shift) Rd Performs an arithmetic shift on general register contents. 1-bit or 2-bit shift is possible. Rd (shift) Rd Performs a logical shift on general register contents. 1-bit or 2-bit shift is possible. Rd (rotate) Rd Rotates general register contents. 1-bit or 2-bit rotation is possible. Rd (rotate) Rd Rotates general register contents through the carry flag. 1-bit or 2-bit rotation is possible. 1 ( Logic operations AND B/W/L OR B/W/L XOR B/W/L NOT B/W/L Shift operations SHAL SHAR SHLL SHLR ROTL ROTR ROTXL ROTXR B/W/L B/W/L B/W/L B/W/L Bitmanipulation instructions BSET B BCLR B BNOT B 72 Type Bitmanipulation instructions Instruction BTST Size* 1 B Function ( BAND B BIAND B BOR B BIOR B BXOR B BIXOR B BLD B BILD B 73 Type Bitmanipulation instructions Instruction BST Size* 1 B Function C ( BIST B Branch instructions Bcc -- JMP BSR JSR RTS System control TRAPA instructions RTE SLEEP -- -- -- -- -- -- -- Branches unconditionally to a specified address. Branches to a subroutine at a specified address. Branches to a subroutine at a specified address. Returns from a subroutine. Starts trap-instruction exception handling. Returns from an exception-handling routine. Causes a transition to a power-down state. 74 Type Instruction Size* 1 B/W Function (EAs) CCR, (EAs) EXR Moves the source operand contents or immediate data to CCR or EXR. Although CCR and EXR are 8-bit registers, word-size transfers are performed between them and memory. The upper 8 bits are valid. CCR (EAd), EXR (EAd) Transfers CCR or EXR contents to a general register or memory. Although CCR and EXR are 8-bit registers, word-size transfers are performed between them and memory. The upper 8 bits are valid. CCR #IMM CCR, EXR #IMM EXR Logically ANDs the CCR or EXR contents with immediate data. CCR #IMM CCR, EXR #IMM EXR Logically ORs the CCR or EXR contents with immediate data. CCR #IMM CCR, EXR #IMM EXR Logically exclusive-ORs the CCR or EXR contents with immediate data. PC + 2 PC Only increments the program counter. if R4L 0 then Repeat @ER5+ @ER6+ R4L-1 R4L Until R4L = 0 else next; if R4 0 then Repeat @ER5+ @ER6+ R4-1 R4 Until R4 = 0 else next; Transfers a data block according to parameters set in general registers R4L or R4, ER5, and ER6. R4L or R4: size of block (bytes) ER5: starting source address ER6: starting destination address Execution of the next instruction begins as soon as the transfer is completed. System control LDC instructions STC B/W ANDC B ORC B XORC B NOP Block data transfer instruction EEPMOV.B -- -- EEPMOV.W -- Notes: *1 Size refers to the operand size. B: Byte W: Word L: Longword *2 When using the TAS instruction, use register ER0, ER1, ER4, or ER5. 75 2.6.4 Basic Instruction Formats The H8S/2633 Series instructions consist of 2-byte (1-word) units. An instruction consists of an operation field (op field), a register field (r field), an effective address extension (EA field), and a condition field (cc). (1) Operation Field: Indicates the function of the instruction, the addressing mode, and the operation to be carried out on the operand. The operation field always includes the first 4 bits of the instruction. Some instructions have two operation fields. (2) Register Field: Specifies a general register. Address registers are specified by 3 bits, data registers by 3 bits or 4 bits. Some instructions have two register fields. Some have no register field. (3) Effective Address Extension: Eight, 16, or 32 bits specifying immediate data, an absolute address, or a displacement. (4) Condition Field: Specifies the branching condition of Bcc instructions. 76 Figure 2-12 shows examples of instruction formats. (1) Operation field only op NOP, RTS, etc. (2) Operation field and register fields op rn rm ADD.B Rn, Rm, etc. (3) Operation field, register fields, and effective address extension op EA (disp) (4) Operation field, effective address extension, and condition field op cc EA (disp) BRA d:16, etc. rn rm MOV.B @(d:16, Rn), Rm, etc. Figure 2-12 Instruction Formats (Examples) 77 2.7 2.7.1 Addressing Modes and Effective Address Calculation Addressing Mode The CPU supports the eight addressing modes listed in table 2-4. Each instruction uses a subset of these addressing modes. Arithmetic and logic instructions can use the register direct and immediate modes. Data transfer instructions can use all addressing modes except program-counter relative and memory indirect. Bit manipulation instructions use register direct, register indirect, or absolute addressing mode to specify an operand, and register direct (BSET, BCLR, BNOT, and BTST instructions) or immediate (3-bit) addressing mode to specify a bit number in the operand. Table 2-4 No. 1 2 3 4 5 6 7 8 Addressing Modes Symbol Rn @ERn @(d:16,ERn)/@(d:32,ERn) @ERn+ @-ERn @aa:8/@aa:16/@aa:24/@aa:32 #xx:8/#xx:16/#xx:32 @(d:8,PC)/@(d:16,PC) @@aa:8 Addressing Mode Register direct Register indirect Register indirect with displacement Register indirect with post-increment Register indirect with pre-decrement Absolute address Immediate Program-counter relative Memory indirect (1) Register Direct--Rn: The register field of the instruction specifies an 8-, 16-, or 32-bit general register containing the operand. R0H to R7H and R0L to R7L can be specified as 8-bit registers. R0 to R7 and E0 to E7 can be specified as 16-bit registers. ER0 to ER7 can be specified as 32-bit registers. (2) Register Indirect--@ERn: The register field of the instruction code specifies an address register (ERn) which contains the address of the operand on memory. If the address is a program instruction address, the lower 24 bits are valid and the upper 8 bits are all assumed to be 0 (H'00). (3) Register Indirect with Displacement--@(d:16, ERn) or @(d:32, ERn): A 16-bit or 32-bit displacement contained in the instruction is added to an address register (ERn) specified by the register field of the instruction, and the sum gives the address of a memory operand. A 16-bit displacement is sign-extended when added. 78 (4) Register Indirect with Post-Increment or Pre-Decrement--@ERn+ or @-ERn: * Register indirect with post-increment--@ERn+ The register field of the instruction code specifies an address register (ERn) which contains the address of a memory operand. After the operand is accessed, 1, 2, or 4 is added to the address register contents and the sum is stored in the address register. The value added is 1 for byte access, 2 for word transfer instruction, or 4 for longword transfer instruction. For word or longword transfer instruction, the register value should be even. * Register indirect with pre-decrement--@-ERn The value 1, 2, or 4 is subtracted from an address register (ERn) specified by the register field in the instruction code, and the result becomes the address of a memory operand. The result is also stored in the address register. The value subtracted is 1 for byte access, 2 for word transfer instruction, or 4 for longword transfer instruction. For word or longword transfer instruction, the register value should be even. (5) Absolute Address--@aa:8, @aa:16, @aa:24, or @aa:32: The instruction code contains the absolute address of a memory operand. The absolute address may be 8 bits long (@aa:8), 16 bits long (@aa:16), 24 bits long (@aa:24), or 32 bits long (@aa:32). To access data, the absolute address should be 8 bits (@aa:8), 16 bits (@aa:16), or 32 bits (@aa:32) long. For an 8-bit absolute address, the upper 24 bits are all assumed to be 1 (H'FFFF). For a 16-bit absolute address the upper 16 bits are a sign extension. A 32-bit absolute address can access the entire address space. A 24-bit absolute address (@aa:24) indicates the address of a program instruction. The upper 8 bits are all assumed to be 0 (H'00). Table 2-5 indicates the accessible absolute address ranges. Table 2-5 Absolute Address Access Ranges Normal Mode* 8 bits (@aa:8) 16 bits (@aa:16) 32 bits (@aa:32) Program instruction address 24 bits (@aa:24) H'FF00 to H'FFFF H'0000 to H'FFFF Advanced Mode H'FFFF00 to H'FFFFFF H'000000 to H'007FFF, H'FF8000 to H'FFFFFF H'000000 to H'FFFFFF Absolute Address Data address Note: * Not available in the H8S/2633 Series. 79 (6) Immediate--#xx:8, #xx:16, or #xx:32: The instruction contains 8-bit (#xx:8), 16-bit (#xx:16), or 32-bit (#xx:32) immediate data as an operand. The ADDS, SUBS, INC, and DEC instructions contain immediate data implicitly. Some bit manipulation instructions contain 3-bit immediate data in the instruction code, specifying a bit number. The TRAPA instruction contains 2-bit immediate data in its instruction code, specifying a vector address. (7) Program-Counter Relative--@(d:8, PC) or @(d:16, PC): This mode is used in the Bcc and BSR instructions. An 8-bit or 16-bit displacement contained in the instruction is sign-extended and added to the 24-bit PC contents to generate a branch address. Only the lower 24 bits of this branch address are valid; the upper 8 bits are all assumed to be 0 (H'00). The PC value to which the displacement is added is the address of the first byte of the next instruction, so the possible branching range is -126 to +128 bytes (-63 to +64 words) or -32766 to +32768 bytes (-16383 to +16384 words) from the branch instruction. The resulting value should be an even number. (8) Memory Indirect--@@aa:8: This mode can be used by the JMP and JSR instructions. The instruction code contains an 8-bit absolute address specifying a memory operand. This memory operand contains a branch address. The upper bits of the absolute address are all assumed to be 0, so the address range is 0 to 255 (H'0000 to H'00FF in normal mode, H'000000 to H'0000FF in advanced mode). In normal mode* the memory operand is a word operand and the branch address is 16 bits long. In advanced mode the memory operand is a longword operand, the first byte of which is assumed to be all 0 (H'00). Note that the first part of the address range is also the exception vector area. For further details, refer to section 4, Exception Handling. Note: * Not available in the H8S/2633 Series. 80 Specified by @aa:8 Branch address Specified by @aa:8 Reserved Branch address (a) Normal Mode* Note: * Not available in the H8S/2633 Series. (b) Advanced Mode Figure 2-13 Branch Address Specification in Memory Indirect Mode If an odd address is specified in word or longword memory access, or as a branch address, the least significant bit is regarded as 0, causing data to be accessed or instruction code to be fetched at the address preceding the specified address. (For further information, see section 2.5.2, Memory Data Formats.) 2.7.2 Effective Address Calculation Table 2-6 indicates how effective addresses are calculated in each addressing mode. In normal mode* the upper 8 bits of the effective address are ignored in order to generate a 16-bit address. Note: * Not available in the H8S/2633 Series. 81 82 No. Effective Address Calculation 1 op 2 31 General register contents Don't care op r 0 31 24 23 Register indirect (@ERn) rm rn Operand is general register contents. Register direct (Rn) Addressing Mode and Instruction Format Effective Address (EA) 0 3 31 General register contents 31 op disp 31 Sign extension disp 0 r 24 23 Don't care 0 0 Register indirect with displacement @(d:16, ERn) or @(d:32, ERn) 4 31 General register contents op r 1, 2, or 4 * Register indirect with pre-decrement @-ERn 31 General register contents 31 op r Operand Size Value added Byte Word Longword 1 2 4 1, 2, or 4 24 23 Don't care 0 0 Register indirect with post-increment or pre-decrement * Register indirect with post-increment @ERn+ 0 31 24 23 Don't care 0 Table 2-6 Effective Address Calculation No. Effective Address Calculation 5 @aa:8 31 24 23 H'FFFF abs Don't care Addressing Mode and Instruction Format Absolute address 87 Effective Address (EA) 0 op @aa:16 31 op abs Don't care 24 23 16 15 Sign extension 0 @aa:24 op abs 31 24 23 Don't care 0 @aa:32 op abs 31 24 23 Don't care 0 6 op IMM Immediate #xx:8/#xx:16/#xx:32 Operand is immediate data. 83 84 No. Effective Address Calculation 23 PC contents @(d:8, PC)/@(d:16, PC) 0 7 Program-counter relative Addressing Mode and Instruction Format Effective Address (EA) op 23 Sign extension disp 31 Don't care disp 0 24 23 0 8 Memory indirect @@aa:8 * Normal mode* op 31 H'000000 87 abs abs 0 31 24 23 Don't care 16 15 H'00 0 15 Memory contents * Advanced mode op abs 31 H'000000 31 Memory contents 87 abs 0 0 0 31 24 23 Don't care 0 Note: * Not available in the H8S/2633 Series. 2.8 2.8.1 Processing States Overview The CPU has five main processing states: the reset state, exception handling state, program execution state, bus-released state, and power-down state. Figure 2-14 shows a diagram of the processing states. Figure 2-15 indicates the state transitions. Reset state The CPU and all on-chip supporting modules have been initialized and are stopped. Exception-handling state A transient state in which the CPU changes the normal processing flow in response to a reset, interrupt, or trap instruction. Processing states Program execution state The CPU executes program instructions in sequence. Bus-released state The external bus has been released in response to a bus request signal from a bus master other than the CPU. Sleep mode Power-down state CPU operation is stopped to conserve power.* Software standby mode Hardware standby mode Note: * The power-down state also includes a medium-speed mode, module stop mode, subactive mode, subsleep mode, and watch mode. Figure 2-14 Processing States 85 End of bus request Bus request Program execution state SLEEP instruction with SSBY = 0 d o ha f ex nd ce lin pti g on Re qu es tf or ex ce Bus-released state ion ha s bu of est st du ue En req eq r s Bu nd lin g Sleep mode pt r Inte rup t re st que SLEEP instruction with SSBY = 1 En Exception handling state External interrupt request Software standby mode MRES= High RES= High STBY= High, RES= Low Manual reset state *1 Power-on reset state *1 Hardware standby mode*2 Reset state *1 Power-down state*3 Notes: *1 From any state except hardware standby mode, a transition to the power-on reset state occurs whenever RES goes low. From any state except hardware standby mode and power-on reset mode, a transition to the manual reset state occurs whenever MRES goes low. A transition can also be made to the reset state when the watchdog timer overflows. *2 From any state, a transition to hardware standby mode occurs when STBY goes low. *3 Apart from these states, there are also the watch mode, subactive mode, and the subsleep mode. See section 24, Power-Down States. Figure 2-15 State Transitions 2.8.2 Reset State The CPU enters the reset state when the RES pin goes low, or when the MRES pin goes low while manual resets are enabled by the MRESE bit. In the reset state, currently executing processing is halted and all interrupts are disabled. For details of MRESE bit setting, see section 3.2.2, System Control Register (SYSCR). Reset exception handling starts when the RES or MRES pin* changes from low to high. The reset state can also be entered in the event of watchdog timer overflow. For details see section 15, Watchdog Timer. Note: * MRES pin in the case of a manual reset. 86 2.8.3 Exception-Handling State The exception-handling state is a transient state that occurs when the CPU alters the normal processing flow due to a reset, interrupt, or trap instruction. The CPU fetches a start address (vector) from the exception vector table and branches to that address. (1) Types of Exception Handling and Their Priority Exception handling is performed for traces, resets, interrupts, and trap instructions. Table 2-7 indicates the types of exception handling and their priority. Trap instruction exception handling is always accepted, in the program execution state. Exception handling and the stack structure depend on the interrupt control mode set in SYSCR. Table 2-7 Priority High Exception Handling Types and Priority Type of Exception Reset Detection Timing Synchronized with clock Start of Exception Handling Exception handling starts immediately after a low-to-high transition at the RES pin, or when the watchdog timer overflows. When the trace (T) bit is set to 1, the trace starts at the end of the current instruction or current exception-handling sequence When an interrupt is requested, exception handling starts at the end of the current instruction or current exception-handling sequence Exception handling starts when a trap (TRAPA) instruction is executed* 3 Trace End of instruction execution or end of exception-handling sequence* 1 End of instruction execution or end of exception-handling sequence* 2 When TRAPA instruction is executed Interrupt Trap instruction Low Notes: *1 Traces are enabled only in interrupt control mode 2. Trace exception-handling is not executed at the end of the RTE instruction. *2 Interrupts are not detected at the end of the ANDC, ORC, XORC, and LDC instructions, or immediately after reset exception handling. *3 Trap instruction exception handling is always accepted, in the program execution state. 87 (2) Reset Exception Handling After the RES pin has gone low and the reset state has been entered, when RES pin goes high again, reset exception handling starts. After the reset state has been entered by driving the MRES pin low while manual resets are enabled by the MRESE bit, reset exception handling starts when MRES pin is driven high again. The CPU enters the power-on reset state when the RES pin is low, and enters the manual reset state when the MRES pin is low. When reset exception handling starts the CPU fetches a start address (vector) from the exception vector table and starts program execution from that address. All interrupts, including NMI, are disabled during reset exception handling and after it ends. (3) Traces Traces are enabled only in interrupt control mode 2. Trace mode is entered when the T bit of EXR is set to 1. When trace mode is established, trace exception handling starts at the end of each instruction. At the end of a trace exception-handling sequence, the T bit of EXR is cleared to 0 and trace mode is cleared. Interrupt masks are not affected. The T bit saved on the stack retains its value of 1, and when the RTE instruction is executed to return from the trace exception-handling routine, trace mode is entered again. Trace exceptionhandling is not executed at the end of the RTE instruction. Trace mode is not entered in interrupt control mode 0, regardless of the state of the T bit. (4) Interrupt Exception Handling and Trap Instruction Exception Handling When interrupt or trap-instruction exception handling begins, the CPU references the stack pointer (ER7) and pushes the program counter and other control registers onto the stack. Next, the CPU alters the settings of the interrupt mask bits in the control registers. Then the CPU fetches a start address (vector) from the exception vector table and program execution starts from that start address. Figure 2-16 shows the stack after exception handling ends. 88 Normal mode*2 SP SP CCR CCR*1 PC (16 bits) EXR Reserved*1 CCR CCR*1 PC (16 bits) (a) Interrupt control mode 0 (b) Interrupt control mode 2 Advanced mode SP SP CCR PC (24 bits) EXR Reserved*1 CCR PC (24 bits) (c) Interrupt control mode 0 Notes: *1 Ignored when returning. *2 Not available in the H8S/2633 Series. (d) Interrupt control mode 2 Figure 2-16 Stack Structure after Exception Handling (Examples) 89 2.8.4 Program Execution State In this state the CPU executes program instructions in sequence. 2.8.5 Bus-Released State This is a state in which the bus has been released in response to a bus request from a bus master other than the CPU. While the bus is released, the CPU halts operations. Bus masters other than the CPU are DMA controller (DMAC)* and data transfer controller (DTC)*. For further details, refer to section 7, Bus Controller. Note: * DMAC and DTC functions are not available in the H8S/2695. 2.8.6 Power-Down State The power-down state includes both modes in which the CPU stops operating and modes in which the CPU does not stop. There are five modes in which the CPU stops operating: sleep mode, software standby mode, hardware standby mode, subsleep mode*1, and watch mode*1. There are also three other power-down modes: medium-speed mode, module stop mode, and subactive mode*1. In medium-speed mode the CPU and other bus masters operate on a medium-speed clock. Module stop mode permits halting of the operation of individual modules, other than the CPU. Subactive mode*1, subsleep mode*1, and watch mode*1 are power-down states using subclock input. For details, refer to section 24, Power-Down Modes. (1) Sleep Mode: A transition to sleep mode is made if the SLEEP instruction is executed while the software standby bit (SSBY) in the standby control register (SBYCR) is cleared to 0. In sleep mode, CPU operations stop immediately after execution of the SLEEP instruction. The contents of CPU registers are retained. (2) Software Standby Mode: A transition to software standby mode is made if the SLEEP instruction is executed while the SSBY bit in SBYCR is set to 1, the LSON bit in LPWRCR is set to 0, and the PSS bit in TCSR (WDT1)*2 is set to 0. In software standby mode, the CPU and clock halt and all MCU operations stop. As long as a specified voltage is supplied, the contents of CPU registers and on-chip RAM are retained. The I/O ports also remain in their existing states. (3) Hardware Standby Mode: A transition to hardware standby mode is made when the STBY pin goes low. In hardware standby mode, the CPU and clock halt and all MCU operations stop. The on-chip supporting modules are reset, but as long as a specified voltage is supplied, on-chip RAM contents are retained. Notes: *1 This function is not available in the H8S/2695. *2 WDT1 is not available in the H8S/2695. 90 2.9 2.9.1 Basic Timing Overview The H8S/2600 CPU is driven by a system clock, denoted by the symbol o. The period from one rising edge of o to the next is referred to as a "state." The memory cycle or bus cycle consists of one, two, or three states. Different methods are used to access on-chip memory, on-chip supporting modules, and the external address space. 2.9.2 On-Chip Memory (ROM, RAM) On-chip memory is accessed in one state. The data bus is 16 bits wide, permitting both byte and word transfer instruction. Figure 2-17 shows the on-chip memory access cycle. Figure 2-18 shows the pin states. Bus cycle T1 o Internal address bus Internal read signal Internal data bus Internal write signal Write access Internal data bus Write data Read data Address Read access Figure 2-17 On-Chip Memory Access Cycle 91 Bus cycle T1 o Address bus AS RD HWR, LWR Data bus Unchanged High High High High-impedance state Figure 2-18 Pin States during On-Chip Memory Access 92 2.9.3 On-Chip Supporting Module Access Timing The on-chip supporting modules are accessed in two states. The data bus is either 8 bits or 16 bits wide, depending on the particular internal I/O register being accessed. Figure 2-19 shows the access timing for the on-chip supporting modules. Figure 2-20 shows the pin states. Bus cycle T1 T2 o Internal address bus Address Internal read signal Read access Internal data bus Internal write signal Write access Internal data bus Write data Read data Figure 2-19 On-Chip Supporting Module Access Cycle 93 Bus cycle T1 T2 o Address bus Unchanged AS RD HWR, LWR High High High Data bus High-impedance state Figure 2-20 Pin States during On-Chip Supporting Module Access 2.9.4 External Address Space Access Timing The external address space is accessed with an 8-bit or 16-bit data bus width in a two-state or three-state bus cycle. In three-state access, wait states can be inserted. For further details, refer to section 7, Bus Controller. 2.10 2.10.1 Usage Note TAS Instruction Only register ER0, ER1, ER4, or ER5 should be used when using the TAS instruction. The TAS instruction is not generated by the Hitachi H8S and H8/300 series C/C++ compilers. If the TAS instruction is used as a user-defined intrinsic function, ensure that only register ER0, ER1, ER4, or ER5 is used. 94 Section 3 MCU Operating Modes 3.1 3.1.1 Overview Operating Mode Selection The H8S/2633 Series has four operating modes (modes 4 to 7). These modes enable selection of the CPU operating mode, enabling/disabling of on-chip ROM, and the initial bus width setting, by setting the mode pins (MD2 to MD0). Table 3-1 lists the MCU operating modes. Table 3-1 MCU Operating Mode Selection External Data Bus On-Chip Initial ROM Width -- -- Max. Width MCU CPU Operating Operating Mode MD2 MD1 MD0 Mode Description 0* 1* 2* 3* 4 5 6 7 1 1 0 1 0 0 0 1 0 1 0 1 0 1 -- -- Advanced On-chip ROM disabled, Disabled 16 bits expanded mode 8 bits On-chip ROM enabled, Enabled 8 bits expanded mode Single-chip mode -- 16 bits 16 bits 16 bits Note: * Not available in the H8S/2633 Series. The CPU's architecture allows for 4 Gbytes of address space, but the H8S/2633 Series actually accesses a maximum of 16 Mbytes. Modes 4 to 6 are externally expanded modes that allow access to external memory and peripheral devices. The external expansion modes allow switching between 8-bit and 16-bit bus modes. After program execution starts, an 8-bit or 16-bit address space can be set for each area, depending on the bus controller setting. If 16-bit access is selected for any one area, 16-bit bus mode is set; if 8-bit access is selected for all areas, 8-bit bus mode is set. Note that the functions of each pin depend on the operating mode. 95 The H8S/2633 Series can be used only in modes 4 to 7. This means that the mode pins must be set to select one of these modes. Do not change the inputs at the mode pins during operation. 3.1.2 Register Configuration The H8S/2633 Series has a mode control register (MDCR) that indicates the inputs at the mode pins (MD2 to MD0), and a system control register (SYSCR) that controls the operation of the H8S/2633 Series. Table 3-2 summarizes these registers. Table 3-2 Name Mode control register System control register Pin function control register MCU Registers Abbreviation MDCR SYSCR PFCR R/W R/W R/W R/W Initial Value Undetermined H'01 H'0D/H'00 Address* H'FDE7 H'FDE5 H'FDEB Note: * Lower 16 bits of the address. 3.2 3.2.1 Bit Register Descriptions Mode Control Register (MDCR) : 7 -- 1 R/W 6 -- 0 -- 5 -- 0 -- 4 -- 0 -- 3 -- 0 -- 2 MDS2 --* R 1 MDS1 --* R 0 MDS0 --* R Initial value : R/W : Note: * Determined by pins MD2 to MD0. MDCR is an 8-bit register that indicates the current operating mode of the H8S/2633 Series. Bit 7--Reserved: Only 1 should be written to this bit. Bits 6 to 3--Reserved: These bits always read as 0 and cannot be modified. Bits 2 to 0--Mode Select 2 to 0 (MDS2 to MDS0): These bits indicate the input levels at pins MD2 to MD0 (the current operating mode). Bits MDS2 to MDS0 correspond to MD2 to MD0. MDS2 to MDS0 are read-only bits-they cannot be written to. The mode pin (MD2 to MD0) input levels are latched into these bits when MDCR is read. These latches are cancelled by a power-on reset, but maintained by a manual reset. 96 3.2.2 Bit System Control Register (SYSCR) : 7 MACS 0 R/W 6 -- 0 -- 5 INTM1 0 R/W 4 INTM0 0 R/W 3 0 R/W 2 0 R/W 1 -- 0 -- 0 RAME 1 R/W NMIEG MRESE Initial value : R/W : SYSCR is an 8-bit readable-writable register that selects saturating or non-saturating calculation for the MAC instruction, selects the interrupt control mode, selects the detected edge for NMI, enables or disables MRES pin input, and enables or disables on-chip RAM. SYSCR is initialized to H'01 by a power-on reset and in hardware standby mode. MACS, INTM1, INTM0, NMIEG, and RAME bits are initialized in manual reset mode, but the MRESE bit is not initialized. SYSCR is not initialized in software standby mode. Bit 7--MAC Saturation (MACS): Selects either saturating or non-saturating calculation for the MAC instruction. Bit 7 MACS 0 1 Description Non-saturating calculation for MAC instruction Saturating calculation for MAC instruction (Initial value) Bit 6--Reserved: This bit always read as 0 and cannot be modified. Bits 5 and 4--Interrupt Control Mode 1 and 0 (INTM1, INTM0): These bits select the control mode of the interrupt controller. For details of the interrupt control modes, see section 5.4.1, Interrupt Control Modes and Interrupt Operation. Bit 5 INTM1 0 Bit 4 INTM0 0 1 1 0 1 Interrupt Control Mode 0 -- 2 -- Description Control of interrupts by I bit Setting prohibited Control of interrupts by I2 to I0 bits and IPR Setting prohibited (Initial value) 97 Bit 3--NMI Edge Select (NMIEG): Selects the valid edge of the NMI interrupt input. Bit 3 NMIEG 0 1 Description An interrupt is requested at the falling edge of NMI input An interrupt is requested at the rising edge of NMI input (Initial value) Bit 2--Manual Reset Selection Bit (MRESE): Enables or disables manual reset input. It is possible to set the P74/TM02/MRES pin to the manual reset input (MRES). Table 3-3 shows the relationship between the MRES pin power-on reset and manual reset. Bit 2 MRESE 0 Description Disables manual reset. Possible to use P74/TM02* /MRES pin as P74/TM02 * input pin. 1 Enables manual reset. Possible to use P74/TM02* /MRES pin as MRES input pin. Note: * This function is not available in the H8S/2695. (Initial value) Table 3-3 Relationship Between Power-On Reset and Manual Reset Pin RES 0 1 1 MRES * 0 1 Reset Type Power-on reset Manual reset Operation state *: Don't care (Initial state) Bit 1--Reserved: This bit always read as 0 and cannot be modified. Bit 0--RAM Enable (RAME): Enables or disables the on-chip RAM. The RAME bit is initialized when the reset status is released. It is not initialized in software standby mode. Bit 0 RAME 0 1 Description On-chip RAM is disabled On-chip RAM is enabled (Initial value) Note: When the DTC * is used, the RAME bit must be set to 1. * The DTC function is not available in the H8S/2695. 98 3.2.3 Bit Pin Function Control Register (PFCR) : 7 CSS07 0 R/W 6 CSS36 0 R/W 5 BUZZE 0 R/W 4 LCASS 0 R/W 3 AE3 1/0 R/W 2 AE2 1/0 R/W 1 AE1 0 R/W 0 AE0 1/0 R/W Initial value : R/W : PFCR is an 8-bit readable-writable register that carries out CS selection control for PG4 and PG1 pins, LCAS selection control for PF2 and PF6 pins, and address output control during extension modes with ROM. PFCR is initialized by H'0D/H'00 by a power-on reset or a hardware standby mode. The immediately previous state is maintained in manual reset or software standby mode. Bit 7--CS0/CS7 Select (CSS07): Selects the CS output content for PG4 pin. In modes 4 to 6, the selected CS is output by setting the corresponding DDR to 1. Bit 7 CSS07 0 1 Description Select CS0 Select CS7 (Initial value) Bit 6--CS3/CS6 Select (CSS36): Selects the CS output content for PG1 pin. In modes 4 to 6, the selected CS is output by setting the corresponding DDR to 1. Bit 6 CSS36 0 1 Description Select CS3 Select CS6 (Initial value) 99 Bit 5--BUZZ Output Enable (BUZZE)*: Disables/enables BUZZ output of PF1 pin. Input clock of WDT1 selected by PSS, CKS2 to CKS0 bits is output as a BUZZ signal. Bit 5 BUZZE 0 1 Description Functions as PF1 input pin Functions as BUZZ output pin (Initial value) Note: * This function is not available in the H8S/2695. This bit should not be set to 1. Bit 4--LCAS Output Pin Selection Bit (LCASS)*: Selects the LCAS signal output pin. Bit 4 LCASS 0 1 Description Outputs LCAS signal from PF2 Outputs LCAS signal from PF6 (Initial value) Note: * This function is not available in the H8S/2695. This bit should not be set to 1. Bits 3 to 0--Address Output Enable 3 to 0 (AE3-AE0): These bits select enabling or disabling of address outputs A8 to A23 in ROMless expanded mode and modes with ROM. When a pin is enabled for address output, the address is output regardless of the corresponding DDR setting. When a pin is disabled for address output, it becomes an output port when the corresponding DDR bit is set to 1. 100 Bit 3 AE3 0 Bit 2 AE2 0 Bit 1 AE1 0 Bit 0 AE0 0 1 Description A8-A23 address output disabled (Initial value*) A8 address output enabled; A9-A23 address output disabled A8, A9 address output enabled; A10-A23 address output disabled A8-A10 address output enabled; A11-A23 address output disabled A8-A11 address output enabled; A12-A23 address output disabled A8-A12 address output enabled; A13-A23 address output disabled A8-A13 address output enabled; A14-A23 address output disabled A8-A14 address output enabled; A15-A23 address output disabled A8-A15 address output enabled; A16-A23 address output disabled A8-A16 address output enabled; A17-A23 address output disabled A8-A17 address output enabled; A18-A23 address output disabled A8-A18 address output enabled; A19-A23 address output disabled A8-A19 address output enabled; A20-A23 address output disabled A8-A20 address output enabled; A21-A23 address output disabled (Initial value*) A8-A21 address output enabled; A22, A23 address output disabled A8-A23 address output enabled 1 0 1 1 0 0 1 1 0 1 1 0 0 0 1 1 0 1 1 0 0 1 1 0 1 Note: * In expanded mode with ROM, bits AE3 to AE0 are initialized to B'0000. In ROMless expanded mode, bits AE3 to AE0 are initialized to B'1101. Address pins A0 to A7 are made address outputs by setting the corresponding DDR bits to 1. 101 3.3 3.3.1 Operating Mode Descriptions Mode 4 The CPU can access a 16-Mbyte address space in advanced mode. The on-chip ROM is disabled. Ports 1, A, B, and C, function as an address bus, ports D and E function as a data bus, and part of port F carries bus control signals. The initial bus mode after a reset is 16 bits, with 16-bit access to all areas. However, note that if 8bit access is designated by the bus controller for all areas, the bus mode switches to 8 bits. 3.3.2 Mode 5 The CPU can access a 16-Mbyte address space in advanced mode. The on-chip ROM is disabled. Ports 1, A, B, and C, function as an address bus, ports D and E function as a data bus, and part of port F carries bus control signals. The initial bus mode after a reset is 8 bits, with 8-bit access to all areas. However, note that if 16bit access is designated by the bus controller for any area, the bus mode switches to 16 bits and port E becomes a data bus. 3.3.3 Mode 6 The CPU can access a 16-Mbyte address space in advanced mode. The on-chip ROM is enabled. Ports 1, A, B, and C, function as input port pins immediately after a reset. Address output can be performed by setting the corresponding DDR (data direction register) bits to 1. Port D function as a data bus, and part of port F carries data bus signals. The initial bus mode after a reset is 8 bits, with 8-bit access to all areas. However, note that if 16bit access is designated by the bus controller for any area, the bus mode switches to 16 bits and port E becomes a data bus. 3.3.4 Mode 7 The CPU can access a 16-Mbyte address space in advanced mode. The on-chip ROM is enabled, but external addresses cannot be accessed. All I/O ports are available for use as input-output ports. 102 3.4 Pin Functions in Each Operating Mode The pin functions of ports A to F vary depending on the operating mode. Table 3-3 shows their functions in each operating mode. Table 3-3 Port Port 1 P10 P11 to P1 3 Port A Port B Port C Port D Port E Port F PF 7 PF 6 to PF4 PF 3 PF 2 to PF0 Port G PG4 PG3 to PG 0 Legend P: I/O port A: Address bus output D: Data bus I/O C: Control signals, clock I/O *: After reset PA4 to PA 0 Pin Functions in Each Mode Mode 4 P/A* P*/A A A A D P/D* P/C* C P/C* P*/C C P*/C Mode 5 P/A* P*/A A A A D P*/D P/C* C P*/C P*/C C P*/C Mode 6 P*/A P*/A P*/A P*/A P*/A D P*/D P/C* C P*/C P*/C P*/C P*/C P P Mode 7 P P P P P P P P*/C P 3.5 Address Map in Each Operating Mode An address map of the H8S/2633, H8S/2633R are shown in figure 3.1, and an address map of the H8S/2632 in figure 3-2, and an address map of the H8S/2631 in figure 3-3, and an address map of the H8S/2695 in figure 3-4. The address space is 16 Mbytes in modes 4 to 7 (advanced modes). The address space is divided into eight areas for modes 4 to 7. For details, see section 7, Bus Controller. 103 Modes 4 and 5 (advanced expanded modes with on-chip ROM disabled) H'000000 Mode 6 (advanced expanded mode with on-chip ROM enabled) Mode 7 (advanced single-chip mode) H'000000 H'000000 External address space On-chip ROM On-chip ROM H'03FFFF H'040000 H'FFB000 On-chip H'FFEFC0 H'FFF800 Internal I/O H'FFFF40 H'FFFF60 H'FFFFC0 H'FFFFFF registers*2 H'FFFF40 H'FFFF60 H'FFFFC0 H'FFFFFF RAM*1 H'FFEFC0 H'FFF800 Internal I/O registers*2 H'FFFF3F External area Internal I/O registers On-chip RAM*1 H'FFFF60 H'FFFFC0 H'FFFFFF Internal I/O registers On-chip RAM H'FFB000 On-chip RAM*1 H'FFEFBF External area External area H'FFF800 Internal I/O registers*2 External address space H'FFB000 On-chip RAM External area Internal I/O registers On-chip RAM*1 Notes: *1 External addresses can be accessed by clearing the RAME bit in SYSCR to 0. *2 Area H'FFF800 to H'FFFDAB is reserved, and must not be accessed. Figure 3-1 Memory Map in Each Operating Mode in the H8S/2633, H8S/2633R 104 Modes 4 and 5 (advanced expanded modes with on-chip ROM disabled) Mode 6 (advanced expanded mode with on-chip ROM enabled) Mode 7 (advanced single-chip mode) H'000000 H'000000 H'000000 On-chip ROM On-chip ROM External address space H'02FFFF H'030000 Reserved area H'040000 H'FFB000 H'FFC000 Reserved area On-chip RAM*1 H'FFEFC0 H'FFF800 Internal I/O registers*2 H'FFFF40 H'FFFF60 H'FFFFC0 H'FFFFFF External area Internal I/O registers On-chip RAM*1 H'FFFF40 H'FFFF60 H'FFFFC0 H'FFFFFF External area H'FFEFC0 H'FFF800 H'FFB000 H'FFC000 External address space Reserved area H'FFC000 On-chip RAM*1 H'FFEFBF External area H'FFF800 Internal I/O registers*2 H'FFFF3F External area Internal I/O registers On-chip RAM*1 H'FFFF60 H'FFFFC0 H'FFFFFF Internal I/O registers On-chip RAM Internal I/O registers*2 On-chip RAM Notes: *1 External addresses can be accessed by clearing the RAME bit in SYSCR to 0. *2 Area H'FFF800 to H'FFFDAB is reserved, and must not be accessed. Figure 3-2 Memory Map in Each Operating Mode in the H8S/2632 105 Modes 4 and 5 (advanced expanded modes with on-chip ROM disabled) Mode 6 (advanced expanded mode with on-chip ROM enabled) Mode 7 (advanced single-chip mode) H'000000 H'000000 H'000000 On-chip ROM On-chip ROM H'020000 External address space H'01FFFF Reserved area H'040000 H'FFB000 H'FFD000 Reserved area On-chip RAM*1 H'FFEFC0 H'FFF800 Internal I/O registers*2 H'FFFF40 H'FFFF60 H'FFFFC0 H'FFFFFF External area Internal I/O registers On-chip RAM*1 H'FFFF40 H'FFFF60 H'FFFFC0 H'FFFFFF External area H'FFEFC0 H'FFF800 H'FFB000 H'FFD000 External address space Reserved area H'FFD000 On-chip RAM*1 H'FFEFBF External area H'FFF800 Internal I/O registers*2 H'FFFF3F External area Internal I/O registers On-chip RAM*1 H'FFFF60 H'FFFFC0 H'FFFFFF Internal I/O registers On-chip RAM Internal I/O registers*2 On-chip RAM Notes: *1 External addresses can be accessed by clearing the RAME bit in SYSCR to 0. *2 Area H'FFF800 to H'FFFDAB is reserved, and must not be accessed. Figure 3-3 Memory Map in Each Operating Mode in the H8S/2631 106 Modes 4 and 5 (advanced expanded modes with on-chip ROM disabled) Mode 6 (advanced expanded mode with on-chip ROM enabled) Mode 7 (advanced single-chip mode) H'000000 H'000000 H'000000 On-chip ROM On-chip ROM External address space H'02FFFF H'030000 Reserved area H'040000 H'FFB000 H'FFD000 Reserved area On-chip RAM*1 H'FFEFC0 H'FFF800 Internal I/O registers*2 H'FFFF40 H'FFFF60 H'FFFFC0 H'FFFFFF External area Internal I/O registers On-chip RAM*1 H'FFFF40 H'FFFF60 H'FFFFC0 H'FFFFFF External area H'FFEFC0 H'FFF800 H'FFB000 H'FFD000 External address space Reserved area H'FFD000 On-chip RAM*1 H'FFEFBF External area H'FFF800 Internal I/O registers*2 H'FFFF3F External area Internal I/O registers On-chip RAM*1 H'FFFF60 H'FFFFC0 H'FFFFFF Internal I/O registers On-chip RAM Internal I/O registers*2 On-chip RAM Notes: *1 External addresses can be accessed by clearing the RAME bit in SYSCR to 0. *2 Area H'FFF800 to H'FFFDAB is reserved, and must not be accessed. Figure 3-4 Memory Map in Each Operating Mode in the H8S/2695 107 108 Section 4 Exception Handling 4.1 4.1.1 Overview Exception Handling Types and Priority As table 4-1 indicates, exception handling may be caused by a reset, direct transition, trap instruction, or interrupt. Exception handling is prioritized as shown in table 4-1. If two or more exceptions occur simultaneously, they are accepted and processed in order of priority. Trap instruction exceptions are accepted at all times, in the program execution state. Exception handling sources, the stack structure, and the operation of the CPU vary depending on the interrupt control mode set by the INTM0 and INTM1 bits of SYSCR. Table 4-1 Priority High Exception Types and Priority Exception Type Reset Start of Exception Handling Starts immediately after a low-to-high transition at the RES pin or MRES pin, or when the watchdog overflows. The CPU enters the power-on reset state when the RES pin is low, and the manual reset state when the MRES pin is low Starts when execution of the current instruction or exception handling ends, if the trace (T) bit is set to 1 Starts when a direct transition occurs due to execution of a SLEEP instruction Starts when execution of the current instruction or exception handling ends, if an interrupt request has been issued* 2 Trace* 1 Direct transition Interrupt Low Trap instruction (TRAPA)*3 Started by execution of a trap instruction (TRAPA) Notes: *1 Traces are enabled only in interrupt control mode 2. Trace exception handling is not executed after execution of an RTE instruction. *2 Interrupt detection is not performed on completion of ANDC, ORC, XORC, or LDC instruction execution, or on completion of reset exception handling. *3 Trap instruction exception handling requests are accepted at all times in program execution state. 109 4.1.2 Exception Handling Operation Exceptions originate from various sources. Trap instructions and interrupts are handled as follows: 1. The program counter (PC), condition code register (CCR), and extended register (EXR) are pushed onto the stack. 2. The interrupt mask bits are updated. The T bit is cleared to 0. 3. A vector address corresponding to the exception source is generated, and program execution starts from that address. For a reset exception, steps 2 and 3 above are carried out. 4.1.3 Exception Vector Table The exception sources are classified as shown in figure 4-1. Different vector addresses are assigned to different exception sources. Table 4-2 lists the exception sources and their vector addresses. Reset Power-on reset Manual reset Trace Exception sources Interrupts External interrupts: NMI, IRQ7 to IRQ0 Internal interrupts: 72 interrupt sources in on-chip supporting modules Trap instruction Figure 4-1 Exception Sources 110 Table 4-2 Exception Vector Table Vector Address* 1 Exception Source Power-on reset Manual reset* 3 Vector Number 0 1 2 3 4 Advanced Mode H'0000 to H'0003 H'0004 to H'0007 H'0008 to H'000B H'000C to H'000F H'0010 to H'0013 H'0014 to H'0017 H'0018 to H'001B H'001C to H'001F H'0020 to H'0023 H'0024 to H'0027 H'0028 to H'002B H'002C to H'002F H'0030 to H'0033 H'0034 to H'0037 H'0038 to H'003B H'003C to H'003F H'0040 to H'0043 H'0044 to H'0047 H'0048 to H'004B H'004C to H'004F H'0050 to H'0053 H'0054 to H'0057 H'0058 to H'005B H'005C to H'005F H'0060 to H'0063 H'01FC to H'01FF Reserved for system use Trace Direct transition* 3 5 6 NMI 7 8 9 10 11 External interrupt Trap instruction (4 sources) Reserved for system use 12 13 14 15 External interrupt IRQ0 IRQ1 IRQ2 IRQ3 IRQ4 IRQ5 IRQ6 IRQ7 16 17 18 19 20 21 22 23 24 127 Internal interrupt* 2 Notes: *1 Lower 16 bits of the address. *2 For details of internal interrupt vectors, see section 5.3.3, Interrupt Exception Handling Vector Table. *3 See section 24.11, Direct Transitions, for details on direct transitions. This function is not available in the H8S/2695. 111 4.2 4.2.1 Reset Overview A reset has the highest exception handling priority. There are two kinds of reset: a power-on reset executed via the RES pin, and a manual reset executed via the MRES pin. When the RES or MRES pin* goes low, currently executing processing is halted and the chip enters the reset state. A reset initializes the internal state of the CPU and the registers of on-chip supporting modules. Immediately after a reset, interrupt control mode 0 is set. Reset exception handling starts when the RES or MRES pin* changes from low to high. The reset state can also be entered in the event of watchdog timer overflow. For details see section 15, Watchdog Timer. Note: * MRES pin in the case of a manual reset. 4.2.2 Types of Reset There are two types of reset: power-on reset and manual reset. Table 4-3 shows the types of reset. When turning power on, do so as a power-on reset. Both power-on reset and manual reset initialize the internal state of the CPU. In a power-on reset, all of the registers of the built-in vicinity modules are initialized, while in a manual reset, the registers of the built-in vicinity models except for bus controllers and I/O ports are initialized. The states of the bus controllers and I/O ports are maintained. During a manual reset built-in vicinity modules are initialized, and ports used as input pins for built-in vicinity modules switch to the input ports controlled by DDR and DR. If using manual reset, set the MRESE bit to 1 beforehand, thereby enabling manual resets. See section 3.2.2, System Control Register (SYSCR) for settings of the MRESE bit. There are also power-on resets and manual resets as the two types of reset carried out by the watchdog timer. 112 Table 4-3 Type Types of Reset Conditions for Transition to Reset MRES RES Low High CPU Internal State Built-in vicinity module Power-on reset * Manual reset Low Initialization Initialization Initialization Initialization except for bus controller and I/O port *: Don't Care 4.2.3 Reset Sequence This LSI enters reset state when the RES pin or MRES pin goes low. To ensure that this LSI is reset, hold the RES pin or the MRES pin low for at least 20 ms at powerup. To reset during operation, hold the RES pin or the MRES pin low for at least 20 states. When the RES pin or the MRES pin goes high after being held low for the necessary time, this LSI starts reset exception handling as follows. 1. The internal state of the CPU and the registers of the on-chip supporting modules are initialized, the T bit is cleared to 0 in EXR, and the I bit is set to 1 in EXR and CCR. 2. The reset exception handling vector address is read and transferred to the PC, and program execution starts from the address indicated by the PC. Figures 4-2 and 4-3 show examples of the reset sequence. 113 Vector fetch Internal processing Prefetch of first program instruction * O * * RES, MRES Address bus (1) (3) (5) RD HWR, LWR High D15 to D0 (2) (4) (6) (1) (3) Reset exception handling vector address (when power-on reset, (1) = H'000000*, (3) = H'000002; when manual reset, (1)= H'000004, (3)= H'000006) (2) (4) Start address (contents of reset exception handling vector address) (5) Start address ((5) = (2) (4)) (6) First program instruction Note: * 3 program wait states are inserted. Figure 4-2 Reset Sequence (Modes 4 and 5) 114 Vector fetch Prefetch of Internal first program processing instruction o RES, MRES Internal address bus (1) (3) (5) Internal read signal Internal write signal Internal data bus (2) High (4) (6) (1) (3) Reset exception handling vector address (when power-on reset, (1) = H'000000, (3) = H'000002) (2) (4) Start address (contents of reset exception handling vector address) (5) Start address ((5) = (2) (4)) (6) First program instruction Figure 4-3 Reset Sequence (Modes 6 and 7) 4.2.4 Interrupts after Reset If an interrupt is accepted after a reset but before the stack pointer (SP) is initialized, the PC and CCR will not be saved correctly, leading to a program crash. To prevent this, all interrupt requests, including NMI, are disabled immediately after a reset. Since the first instruction of a program is always executed immediately after the reset state ends, make sure that this instruction initializes the stack pointer (example: MOV.L #xx: 32, SP). 4.2.5 State of On-Chip Supporting Modules after Reset Release After reset release, MSTPCRA to MSTPCRC are initialized to H'3F, H'FF, and H'FF, respectively, and all modules except the DMAC* and DTC*, enter module stop mode. Consequently, on-chip supporting module registers cannot be read or written to. Register reading and writing is enabled when module stop mode is exited. Note: * DMAC and DTC functions are not available in the H8S/2695. 115 4.3 Traces Traces are enabled in interrupt control mode 2. Trace mode is not activated in interrupt control mode 0, irrespective of the state of the T bit. For details of interrupt control modes, see section 5, Interrupt Controller. If the T bit in EXR is set to 1, trace mode is activated. In trace mode, a trace exception occurs on completion of each instruction. Trace mode is canceled by clearing the T bit in EXR to 0. It is not affected by interrupt masking. Table 4-4 shows the state of CCR and EXR after execution of trace exception handling. Interrupts are accepted even within the trace exception handling routine. The T bit saved on the stack retains its value of 1, and when control is returned from the trace exception handling routine by the RTE instruction, trace mode resumes. Trace exception handling is not carried out after execution of the RTE instruction. Table 4-4 Status of CCR and EXR after Trace Exception Handling CCR Interrupt Control Mode 0 2 1 I UI I2 to I0 EXR T Trace exception handling cannot be used. -- -- 0 Legend 1: Set to 1 0: Cleared to 0 --: Retains value prior to execution 116 4.4 Interrupts Interrupt exception handling can be requested by nine external sources (NMI, IRQ7 to IRQ0) and 72 internal sources in the on-chip supporting modules. Figure 4-4 classifies the interrupt sources and the number of interrupts of each type. The on-chip supporting modules that can request interrupts include the watchdog timer (WDT), 16-bit timer-pulse unit (TPU), 8-bit timer *, serial communication interface (SCI), data transfer controller (DTC)*, DMA controller (DMAC)*, PC break controller (PBC)*, A/D converter, and I2C bus interface (IIC)*. Each interrupt source has a separate vector address. NMI is the highest-priority interrupt. Interrupts are controlled by the interrupt controller. The interrupt controller has two interrupt control modes and can assign interrupts other than NMI to eight priority/mask levels to enable multiplexed interrupt control. For details of interrupts, see section 5, Interrupt Controller. Note: * This function is not available in the H8S/2695. External interrupts NMI (1) IRQ7 to IRQ0 (8) Interrupts Internal interrupts WDT*1 (2) Refresh timer*2 *3 (1) TPU (26) 8-bit timer*3 (12) SCI (20) DTC*3 (1) DMAC*3 (4) PBC*3 (1) A/D converter (1) IIC*3 (4) (Option) Notes: Numbers in parentheses are the numbers of interrupt sources. *1 When the watchdog timer is used as an interval timer, it generates an interrupt request at each counter overflow. *2 When refresh timer is used as an interval time, an interrupt request is generated by compare match. *3 This function is not available in the H8S/2695. Figure 4-4 Interrupt Sources and Number of Interrupts 117 4.5 Trap Instruction Trap instruction exception handling starts when a TRAPA instruction is executed. Trap instruction exception handling can be executed at all times in the program execution state. The TRAPA instruction fetches a start address from a vector table entry corresponding to a vector number from 0 to 3, as specified in the instruction code. Table 4-5 shows the status of CCR and EXR after execution of trap instruction exception handling. Table 4-5 Status of CCR and EXR after Trap Instruction Exception Handling CCR Interrupt Control Mode 0 2 I 1 1 UI -- -- I2 to I0 -- -- EXR T -- 0 Legend 1: Set to 1 0: Cleared to 0 --: Retains value prior to execution 118 4.6 Stack Status after Exception Handling Figure 4-5 shows the stack after completion of trap instruction exception handling and interrupt exception handling. SP SP CCR CCR* PC (16 bits) EXR Reserved* CCR CCR* PC (16 bits) (a) Interrupt control mode 0 Note: * Ignored on return. (b) Interrupt control mode 2 Figure 4-5 (1) Stack Status after Exception Handling (Normal Modes: Not Available in the H8S/2633 Series) SP SP CCR PC (24bits) EXR Reserved* CCR PC (24bits) (a) Interrupt control mode 0 Note: * Ignored on return. (b) Interrupt control mode 2 Figure 4-5 (2) Stack Status after Exception Handling (Advanced Modes) 119 4.7 Notes on Use of the Stack When accessing word data or longword data, the H8S/2633 Series assumes that the lowest address bit is 0. The stack should always be accessed by word transfer instruction or longword transfer instruction, and the value of the stack pointer (SP, ER7) should always be kept even. Use the following instructions to save registers: PUSH.W PUSH.L Rn ERn (or MOV.W Rn, @-SP) (or MOV.L ERn, @-SP) Use the following instructions to restore registers: POP.W POP.L Rn ERn (or MOV.W @SP+, Rn) (or MOV.L @SP+, ERn) Setting SP to an odd value may lead to a malfunction. Figure 4-6 shows an example of what happens when the SP value is odd. CCR SP PC SP R1L PC H'FFFEFA H'FFFEFB H'FFFEFC H'FFFEFD H'FFFEFF SP TRAP instruction executed MOV.B R1L, @-ER7 SP set to H'FFFEFF Data saved above SP Contents of CCR lost Legend CCR: Condition code register PC: Program counter R1L: General register R1L SP: Stack pointer Note: This diagram illustrates an example in which the interrupt control mode is 0, in advanced mode. Figure 4-6 Operation when SP Value is Odd 120 Section 5 Interrupt Controller 5.1 5.1.1 Overview Features The H8S/2633 Series controls interrupts by means of an interrupt controller. The interrupt controller has the following features: * Two interrupt control modes Any of two interrupt control modes can be set by means of the INTM1 and INTM0 bits in the system control register (SYSCR) * Priorities settable with IPR An interrupt priority register (IPR) is provided for setting interrupt priorities. Eight priority levels can be set for each module for all interrupts except NMI NMI is assigned the highest priority level of 8, and can be accepted at all times * Independent vector addresses All interrupt sources are assigned independent vector addresses, making it unnecessary for the source to be identified in the interrupt handling routine * Nine external interrupts NMI is the highest-priority interrupt, and is accepted at all times. Rising edge or falling edge can be selected for NMI Falling edge, rising edge, or both edge detection, or level sensing, can be selected for IRQ7 to IRQ0 * DTC* and DMAC* control DTC and DMAC activation is performed by means of interrupts Note: * This function is not available in the H8S/2695. 121 5.1.2 Block Diagram A block diagram of the interrupt controller is shown in Figure 5-1. INTM1, INTM0 SYSCR NMIEG NMI input IRQ input NMI input unit IRQ input unit ISR ISCR IER Priority determination I I2 to I0 Interrupt request Vector number CPU Internal interrupt request SWDTEND to TEI4 IPR Interrupt controller CCR EXR Legend ISCR IER ISR IPR SYSCR : IRQ sense control register : IRQ enable register : IRQ status register : Interrupt priority register : System control register Figure 5-1 Block Diagram of Interrupt Controller 122 5.1.3 Pin Configuration Table 5-1 summarizes the pins of the interrupt controller. Table 5-1 Name Nonmaskable interrupt External interrupt requests 7 to 0 Interrupt Controller Pins Symbol NMI I/O Input Function Nonmaskable external interrupt; rising or falling edge can be selected Maskable external interrupts; rising, falling, or both edges, or level sensing, can be selected IRQ7 to IRQ0 Input 5.1.4 Register Configuration Table 5-2 summarizes the registers of the interrupt controller. Table 5-2 Name System control register IRQ sense control register H IRQ sense control register L IRQ enable register IRQ status register Interrupt priority register A Interrupt priority register B Interrupt priority register C Interrupt priority register D Interrupt priority register E Interrupt priority register F Interrupt priority register G Interrupt priority register H Interrupt priority register I Interrupt priority register J Interrupt priority register K Interrupt priority register L Interrupt priority register O Interrupt Controller Registers Abbreviation SYSCR ISCRH ISCRL IER ISR IPRA IPRB IPRC IPRD IPRE IPRF IPRG IPRH IPRI IPRJ IPRK IPRL IPRO R/W R/W R/W R/W R/W R/(W)*2 R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W Initial Value H'01 H'00 H'00 H'00 H'00 H'77 H'77 H'77 H'77 H'77 H'77 H'77 H'77 H'77 H'77 H'77 H'77 H'77 Address* 1 H'FDE5 H'FE12 H'FE13 H'FE14 H'FE15 H'FEC0 H'FEC1 H'FEC2 H'FEC3 H'FEC4 H'FEC5 H'FEC6 H'FEC7 H'FEC8 H'FEC9 H'FECA H'FECB H'FECE Notes: *1 Lower 16 bits of the address. *2 Can only be written with 0 for flag clearing. 123 5.2 5.2.1 Bit Register Descriptions System Control Register (SYSCR) : 7 MACS 0 R/W 6 -- 0 -- 5 INTM1 0 R/W 4 INTM0 0 R/W 3 0 R/W 2 0 R/W 1 -- 0 -- 0 RAME 1 R/W NMIEG MRESE Initial value : R/W : SYSCR is an 8-bit readable/writable register that selects the interrupt control mode, and the detected edge for NMI. Only bits 5 to 3 are described here; for details of the other bits, see section 3.2.2, System Control Register (SYSCR). SYSCR is initialized to H'01 by a power-on reset, manual reset, and in hardware standby mode. SYSCR is not initialized in software standby mode. Bits 5 and 4--Interrupt Control Mode 1 and 0 (INTM1, INTM0): These bits select one of two interrupt control modes for the interrupt controller. Bit 5 INTM1 0 Bit 4 INTM0 0 1 1 0 1 Interrupt Control Mode 0 -- 2 -- Description Interrupts are controlled by I bit Setting prohibited Interrupts are controlled by bits I2 to I0, and IPR Setting prohibited (Initial value) Bit 3--NMI Edge Select (NMIEG): Selects the input edge for the NMI pin. Bit 3 NMIEG 0 1 Description Interrupt request generated at falling edge of NMI input Interrupt request generated at rising edge of NMI input (Initial value) 124 5.2.2 Bit Interrupt Priority Registers A to L, O (IPRA to IPRL, IPRO) : 7 -- 0 -- 6 IPR6 1 R/W 5 IPR5 1 R/W 4 IPR4 1 R/W 3 -- 0 -- 2 IPR2 1 R/W 1 IPR1 1 R/W 0 IPR0 1 R/W Initial value : R/W : The IPR registers are thirteen 8-bit readable/writable registers that set priorities (levels 7 to 0) for interrupts other than NMI. The correspondence between IPR settings and interrupt sources is shown in table 5-3. The IPR registers set a priority (level 7 to 0) for each interrupt source other than NMI. The IPR registers are initialized to H'77 by a reset and in hardware standby mode. Bits 7 and 3--Reserved: These bits are always read as 0 and cannot be modified. Table 5-3 Correspondence between Interrupt Sources and IPR Settings Bits Register IPRA IPRB IPRC IPRD IPRE IPRF IPRG IPRH IPRI IPRJ IPRK IPRL IPRO 6 to 4 IRQ0 IRQ2 IRQ3 IRQ6 IRQ7 Watchdog timer 0 PC break * TPU channel 0 TPU channel 2 TPU channel 4 8-bit timer channel 0 * DMAC SCI channel 1 8-bit timer 2, 3* SCI channel 3 2 to 0 IRQ1 IRQ4 IRQ5 DTC* Refresh timer A/D converter, watchdog timer 1 * TPU channel 1 TPU channel 3 TPU channel 5 8-bit timer channel 1 * SCI channel 0 SCI channel 2 IIC (Option)* SCI channel 4 Note: * This function is not available in the H8S/2695. 125 As shown in table 5-3, multiple interrupts are assigned to one IPR. Setting a value in the range from H'0 to H'7 in the 3-bit groups of bits 6 to 4 and 2 to 0 sets the priority of the corresponding interrupt. The lowest priority level, level 0, is assigned by setting H'0, and the highest priority level, level 7, by setting H'7. When interrupt requests are generated, the highest-priority interrupt according to the priority levels set in the IPR registers is selected. This interrupt level is then compared with the interrupt mask level set by the interrupt mask bits (I2 to I0) in the extend register (EXR) in the CPU, and if the priority level of the interrupt is higher than the set mask level, an interrupt request is issued to the CPU. 5.2.3 Bit IRQ Enable Register (IER) : 7 IRQ7E 0 R/W 6 IRQ6E 0 R/W 5 IRQ5E 0 R/W 4 IRQ4E 0 R/W 3 IRQ3E 0 R/W 2 IRQ2E 0 R/W 1 IRQ1E 0 R/W 0 IRQ0E 0 R/W Initial value : R/W : IER is an 8-bit readable/writable register that controls enabling and disabling of interrupt requests IRQ7 to IRQ0. IER is initialized to H'00 by a reset and in hardware standby mode. They are not initialized in software standby mode. Bits 7 to 0--IRQ7 to IRQ0 Enable (IRQ7E to IRQ0E): These bits select whether IRQ7 to IRQ0 are enabled or disabled. Bit n IRQnE 0 1 Description IRQn interrupts disabled IRQn interrupts enabled (n = 7 to 0) (Initial value) 126 5.2.4 ISCRH Bit IRQ Sense Control Registers H and L (ISCRH, ISCRL) : 15 0 R/W 14 0 R/W 13 0 R/W 12 0 R/W 11 0 R/W 10 0 R/W 9 0 R/W 8 0 R/W IRQ7SCB IRQ7SCA IRQ6SCB IRQ6SCA IRQ5SCB IRQ5SCA IRQ4SCB IRQ4SCA Initial value : R/W ISCRL Bit : 7 0 R/W 6 0 R/W 5 0 R/W 4 0 R/W 3 0 R/W 2 0 R/W 1 0 R/W 0 0 R/W : IRQ3SCB IRQ3SCA IRQ2SCB IRQ2SCA IRQ1SCB IRQ1SCA IRQ0SCB IRQ0SCA Initial value : R/W : The ISCR registers are 16-bit readable/writable registers that select rising edge, falling edge, or both edge detection, or level sensing, for the input at pins IRQ7 to IRQ0. The ISCR registers are initialized to H'0000 by a reset and in hardware standby mode. They are not initialized in software standby mode. Bits 15 to 0: IRQ7 Sense Control A and B (IRQ7SCA, IRQ7SCB) to IRQ0 Sense Control A and B (IRQ0SCA, IRQ0SCB) Bits 15 to 0 IRQ7SCB to IRQ0SCB 0 IRQ7SCA to IRQ0SCA 0 1 1 0 1 Description Interrupt request generated at IRQ7 to IRQ0 input low level (initial value) Interrupt request generated at falling edge of IRQ7 to IRQ0 input Interrupt request generated at rising edge of IRQ7 to IRQ0 input Interrupt request generated at both falling and rising edges of IRQ7 to IRQ0 input 127 5.2.5 Bit IRQ Status Register (ISR) : 7 IRQ7F 0 R/(W)* 6 IRQ6F 0 R/(W)* 5 IRQ5F 0 R/(W)* 4 IRQ4F 0 R/(W)* 3 IRQ3F 0 R/(W)* 2 IRQ2F 0 R/(W)* 1 IRQ1F 0 R/(W)* 0 IRQ0F 0 R/(W)* Initial value : R/W : Note: * Only 0 can be written, to clear the flag. ISR is an 8-bit readable/writable register that indicates the status of IRQ7 to IRQ0 interrupt requests. ISR is initialized to H'00 by a reset and in hardware standby mode. They are not initialized in software standby mode. Bits 7 to 0--IRQ7 to IRQ0 flags (IRQ7F to IRQ0F): These bits indicate the status of IRQ7 to IRQ0 interrupt requests. Bit n IRQnF 0 Description [Clearing conditions] (Initial value) * * * * 1 Cleared by reading IRQnF flag when IRQnF = 1, then writing 0 to IRQnF flag When interrupt exception handling is executed when low-level detection is set (IRQnSCB = IRQnSCA = 0) and IRQn input is high When IRQn interrupt exception handling is executed when falling, rising, or both-edge detection is set (IRQnSCB = 1 or IRQnSCA = 1) When the DTC * is activated by an IRQn interrupt, and the DISEL bit in MRB of the DTC* is cleared to 0 When IRQn input goes low when low-level detection is set (IRQnSCB = IRQnSCA = 0) When a falling edge occurs in IRQn input when falling edge detection is set (IRQnSCB = 0, IRQnSCA = 1) When a rising edge occurs in IRQn input when rising edge detection is set (IRQnSCB = 1, IRQnSCA = 0) When a falling or rising edge occurs in IRQn input when both-edge detection is set (IRQnSCB = IRQnSCA = 1) (n = 7 to 0) Note: * The DTC function is not available in the H8S/2695. 128 [Setting conditions] * * * * 5.3 Interrupt Sources Interrupt sources comprise external interrupts (NMI and IRQ7 to IRQ0) and internal interrupts (72 sources). 5.3.1 External Interrupts There are nine external interrupts: NMI and IRQ7 to IRQ0. Of these, NMI and IRQ7 to IRQ0 can be used to restore the H8S/2633 Series from software standby mode. NMI Interrupt: NMI is the highest-priority interrupt, and is always accepted by the CPU regardless of the interrupt control mode or the status of the CPU interrupt mask bits. The NMIEG bit in SYSCR can be used to select whether an interrupt is requested at a rising edge or a falling edge on the NMI pin. The vector number for NMI interrupt exception handling is 7. IRQ7 to IRQ0 Interrupts: Interrupts IRQ7 to IRQ0 are requested by an input signal at pins IRQ7 to IRQ0. Interrupts IRQ7 to IRQ0 have the following features: * Using ISCR, it is possible to select whether an interrupt is generated by a low level, falling edge, rising edge, or both edges, at pins IRQ7 to IRQ0. * Enabling or disabling of interrupt requests IRQ7 to IRQ0 can be selected with IER. * The interrupt priority level can be set with IPR. * The status of interrupt requests IRQ7 to IRQ0 is indicated in ISR. ISR flags can be cleared to 0 by software. A block diagram of interrupts IRQ7 to IRQ0 is shown in figure 5-2. IRQnE IRQnSCA, IRQnSCB IRQnF Edge/level detection circuit IRQn input Clear signal Note: n: 7 to 0 IRQn interrupt S R Q request Figure 5-2 Block Diagram of Interrupts IRQ7 to IRQ0 129 Figure 5-3 shows the timing of setting IRQnF. o IRQn input pin IRQnF Figure 5-3 Timing of Setting IRQnF The vector numbers for IRQ7 to IRQ0 interrupt exception handling are 23 to 16. Detection of IRQ7 to IRQ0 interrupts does not depend on whether the relevant pin has been set for input or output. However, when a pin is used as an external interrupt input pin, do not clear the corresponding DDR to 0 and use the pin as an I/O pin for another function. 5.3.2 Internal Interrupts There are 72 *1 sources for internal interrupts from on-chip supporting modules. * For each on-chip supporting module there are flags that indicate the interrupt request status, and enable bits that select enabling or disabling of these interrupts. If both of these are set to 1 for a particular interrupt source, an interrupt request is issued to the interrupt controller. * The interrupt priority level can be set by means of IPR. * The DMAC*2 and DTC*2 can be activated by a TPU, 8-bit timer*2, SCI, or other interrupt request. When the DMAC*2 and DTC*2 are activated by an interrupt, the interrupt control mode and interrupt mask bits are not affected. Notes: *1 The H8S/2695 has 54 sources for internal interrupts from on-chip supporting modules. *2 This function is not available in the H8S/2695. 5.3.3 Interrupt Exception Handling Vector Table Tables 5-4(a) and 5-4(b) show interrupt exception handling sources, vector addresses, and interrupt priorities. For default priorities, the lower the vector number, the higher the priority. Priorities among modules can be set by means of the IPR. The situation when two or more modules are set to the same priority, and priorities within a module, are fixed as shown in table 5-4. 130 Table 5-4(a) Interrupt Sources, Vector Addresses, and Interrupt Priorities (H8S/2633, H8S/2632, H8S/2631, H8S/2633R) Vector Address* Vector Number 7 16 17 18 19 20 21 22 23 DTC Watchdog timer 0 -- PC break A/D Watchdog timer 1 -- TPU channel 0 24 25 26 27 28 29 30 31 32 33 34 35 36 -- 37 38 39 Advanced Mode H'001C H'0040 H'0044 H'0048 H'004C H'0050 H'0054 H'0058 H'005C H'0060 H'0064 H'0068 H'006C H'0070 H'0074 H'0078 H'007C H'0080 H'0084 H'0088 H'008C H'0090 H'0094 H'0098 H'009C IPRF6 to 4 IPRA6 to 4 IPRA2 to 0 IPRB6 to 4 IPRB2 to 0 IPRC6 to 4 IPRC2 to 0 IPRD6 to 4 IPRD2 to 0 IPRE6 to 4 IPRE2 to 0 IPR Priority High Interrupt Source NMI IRQ0 IRQ1 IRQ2 IRQ3 IRQ4 IRQ5 IRQ6 IRQ7 SWDTEND (software activation interrupt end) WOVI0 (interval timer) Reserved PC break ADI (A/D conversion end) WOVI1 (interval timer) Reserved TGI0A (TGR0A input capture/compare match) TGI0B (TGR0B input capture/compare match) TGI0C (TGR0C input capture/compare match) TGI0D (TGR0D input capture/compare match) TCI0V (overflow 0) Reserved Origin of Interrupt Source External pin Low 131 Interrupt Source TGI1A (TGR1A input capture/compare match) TGI1B (TGR1B input capture/compare match) TCI1V (overflow 1) TCI1U (underflow 1) TGI2A (TGR2A input capture/compare match) TGI2B (TGR2B input capture/compare match) TCI2V (overflow 2) TCI2U (underflow 2) TGI3A (TGR3A input capture/compare match) TGI3B (TGR3B input capture/compare match) TGI3C (TGR3C input capture/compare match) TGI3D (TGR3D input capture/compare match) TCI3V (overflow 3) Reserved Origin of Interrupt Source TPU channel 1 Vector Address* Vector Number 40 41 42 43 Advanced Mode H'00A0 H'00A4 H'00A8 H'00AC H'00B0 H'00B4 H'00B8 H'00BC H'00C0 H'00C4 H'00C8 H'00CC H'00D0 H'00D4 H'00D8 H'00DC H'00E0 H'00E4 H'00E8 H'00EC H'00F0 H'00F4 H'00F8 H'00FC IPRH2 to 0 IPRH6 to 4 IPRG2 to 0 IPRG6 to 4 IPR IPRF2 to 0 Priority High TPU channel 2 44 45 46 47 TPU channel 3 48 49 50 51 52 -- 53 54 55 56 57 58 59 TGI4A (TGR4A input capture/compare match) TGI4B (TGR4B input capture/compare match) TCI4V (overflow 4) TCI4U (underflow 4) TGI5A (TGR5A input capture/compare match) TGI5B (TGR5B input capture/compare match) TCI5V (overflow 5) TCI5U (underflow 5) TPU channel 4 TPU channel 5 60 61 62 63 Low 132 Interrupt Source CMIA0 (compare match A0) CMIB0 (compare match B0) OVI0 (overflow 0) Reserved CMIA1 (compare match A1) CMIB1 (compare match B1) OVI1 (overflow 1) Origin of Interrupt Source 8-bit timer channel 0 -- 8-bit timer channel 1 Vector Address* Vector Number 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 Advanced Mode H'0100 H'0104 H'0108 H'010C H'0110 H'0114 H'0118 H'011C H'0120 H'0124 H'0128 H'012C H'0130 H'0134 H'0138 H'013C H'0140 H'0144 H'0148 H'014C H'0150 H'0154 H'0158 H'015C H'0160 H'0164 H'0168 H'016C IPRJ2 to 0 IPRI2 to 0 IPR IPRI6 to 4 Priority High Reserved -- DMAC DED0A (channel 0/channel 0A transfer end) DEND0B (channel 0B transfer end) DEND1A (channel 1/channel 1A transfer end) DEND1B (channel 1B transfer end) Reserved -- IPRJ6 to 4 ERI0 (receive error 0) RXI0 (reception completed 0) TXI0 (transmit data empty 0) TEI0 (transmission end 0) ERI1 (receive error 1) RXI1 (reception completed 1) TXI1 (transmit data empty 1) TEI1 (transmission end 1) ERI2 (receive error 2) RXI2 (reception completed 2) TXI2 (transmit data empty 2) TEI2 (transmission end 2) SCI channel 0 SCI channel 1 IPRK6 to 4 SCI channel 2 IPRK2 to 0 Low 133 Interrupt Source CMIA0 (compare match A2) CMIB0 (compare match B2) OVI0 (overflow 2) Reserved CMIA1 (compare match A3) CMIB1 (compare match B3) OVI1 (overflow 3) Reserved Origin of Interrupt Source 8 bit timer channel 2 -- 8 bit timer channel 3 -- Vector Address* Vector Number 92 93 94 95 96 97 98 99 Advanced Mode H'0170 H'0174 H'0178 H'017C H'0180 H'0184 H'0188 H'018C H'0190 H'0194 H'0198 H'019C H'01A0 H'01A4 H'01A8 H'01AC H'01B0 H'01B4 H'01B8 H'01BC H'01C0 H'01C4 H'01C8 H'01CC H'01D0 H'01D4 H'01D8 H'01DC H'01E0 H'01E4 H'01E8 H'01EC H'01F0 H'01F4 H'01F8 H'01FC IPRM6 to 4 IPRL2 to 0 IPR IPRL6 to 4 Priority High IICI0 (1 byte transmission/reception IIC channel 100 completed) 0 (optional) DDCSW1 (format switch) 101 IICI1 (1 byte transmission/reception IIC channel 102 completed) 1 (optional) Reserved 103 Reserved -- 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 Reserved -- IPRM2 to 0 Reserved -- IPRN6 to 4 Reserved -- IPRN2 to 0 ERI3 (reception error 3) RXI3 (reception completed 3) TXI3 (transmission data empty 3) TEI3 (transmission end 3) ERI4 (reception error 4) RXI4 (reception completed 4) TXI4 (transmission data empty 4) TEI4 (transmission end 4) SCI channel 3 IPRO6 to 4 SCI channel 4 IPRO2 to 0 Low Note: * Lower 16 bits of the start address. 134 Table 5-4(b) Interrupt Sources, Vector Addresses, and Interrupt Priorities (H8S/2695) Vector Address* Vector Number 7 16 17 18 19 20 21 22 23 -- Watchdog timer 0 -- 24 25 26 27 ADI (A/D conversion end) Reserved A/D -- 28 29 30 31 32 33 34 35 36 -- 37 38 39 Advanced Mode H'001C H'0040 H'0044 H'0048 H'004C H'0050 H'0054 H'0058 H'005C H'0060 H'0064 H'0068 H'006C H'0070 H'0074 H'0078 H'007C H'0080 H'0084 H'0088 H'008C H'0090 H'0094 H'0098 H'009C IPRF6 to 4 IPRA6 to 4 IPRA2 to 0 IPRB6 to 4 IPRB2 to 0 IPRC6 to 4 IPRC2 to 0 IPRD6 to 4 IPRD2 to 0 IPRE6 to 4 IPRE2 to 0 IPR Priority High Interrupt Source NMI IRQ0 IRQ1 IRQ2 IRQ3 IRQ4 IRQ5 IRQ6 IRQ7 Reserved WOVI0 (interval timer) Reserved Origin of Interrupt Source External pin TGI0A (TGR0A input capture/compare match) TGI0B (TGR0B input capture/compare match) TGI0C (TGR0C input capture/compare match) TGI0D (TGR0D input capture/compare match) TCI0V (overflow 0) Reserved TPU channel 0 Low 135 Interrupt Source TGI1A (TGR1A input capture/compare match) TGI1B (TGR1B input capture/compare match) TCI1V (overflow 1) TCI1U (underflow 1) TGI2A (TGR2A input capture/compare match) TGI2B (TGR2B input capture/compare match) TCI2V (overflow 2) TCI2U (underflow 2) TGI3A (TGR3A input capture/compare match) TGI3B (TGR3B input capture/compare match) TGI3C (TGR3C input capture/compare match) TGI3D (TGR3D input capture/compare match) TCI3V (overflow 3) Reserved Origin of Interrupt Source TPU channel 1 Vector Address* Vector Number 40 41 42 43 Advanced Mode H'00A0 H'00A4 H'00A8 H'00AC H'00B0 H'00B4 H'00B8 H'00BC H'00C0 H'00C4 H'00C8 H'00CC H'00D0 H'00D4 H'00D8 H'00DC H'00E0 H'00E4 H'00E8 H'00EC H'00F0 H'00F4 H'00F8 H'00FC IPRH2 to 0 IPRH6 to 4 IPRG2 to 0 IPRG6 to 4 IPR IPRF2 to 0 Priority High TPU channel 2 44 45 46 47 TPU channel 3 48 49 50 51 52 -- 53 54 55 56 57 58 59 TGI4A (TGR4A input capture/compare match) TGI4B (TGR4B input capture/compare match) TCI4V (overflow 4) TCI4U (underflow 4) TGI5A (TGR5A input capture/compare match) TGI5B (TGR5B input capture/compare match) TCI5V (overflow 5) TCI5U (underflow 5) TPU channel 4 TPU channel 5 60 61 62 63 Low 136 Interrupt Source Reserved Origin of Interrupt Source -- Vector Address* Vector Number 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 Advanced Mode H'0100 H'0104 H'0108 H'010C H'0110 H'0114 H'0118 H'011C H'0120 H'0124 H'0128 H'012C H'0130 H'0134 H'0138 H'013C H'0140 H'0144 H'0148 H'014C H'0150 H'0154 H'0158 H'015C H'0160 H'0164 H'0168 H'016C H'0170 H'0174 H'0178 H'017C H'0180 H'0184 H'0188 H'018C IPR IPRI6 to 4 Priority High Reserved -- IPRI2 to 0 Reserved -- IPRJ6 to 4 ERI0 (receive error 0) RXI0 (reception completed 0) TXI0 (transmit data empty 0) TEI0 (transmission end 0) ERI1 (receive error 1) RXI1 (reception completed 1) TXI1 (transmit data empty 1) TEI1 (transmission end 1) ERI2 (receive error 2) RXI2 (reception completed 2) TXI2 (transmit data empty 2) TEI2 (transmission end 2) Reserved SCI channel 0 IPRJ2 to 0 SCI channel 1 IPRK6 to 4 SCI channel 2 IPRK2 to 0 -- IPRL6 to 4 Low 137 Interrupt Source Reserved Origin of Interrupt Source -- Vector Address* Vector Number 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 Advanced Mode H'0190 H'0194 H'0198 H'019C H'01A0 H'01A4 H'01A8 H'01AC H'01B0 H'01B4 H'01B8 H'01BC H'01C0 H'01C4 H'01C8 H'01CC H'01D0 H'01D4 H'01D8 H'01DC H'01E0 H'01E4 H'01E8 H'01EC H'01F0 H'01F4 H'01F8 H'01FC IPR IPRL2 to 0 Priority High Reserved -- IPRM6 to 4 Reserved -- IPRM2 to 0 Reserved -- IPRN6 to 4 Reserved -- IPRN2 to 0 ERI3 (reception error 3) RXI3 (reception completed 3) TXI3 (transmission data empty 3) TEI3 (transmission end 3) ERI4 (reception error 4) RXI4 (reception completed 4) TXI4 (transmission data empty 4) TEI4 (transmission end 4) SCI channel 3 IPRO6 to 4 SCI channel 4 IPRO2 to 0 Low Note: * Lower 16 bits of the start address. 138 5.4 5.4.1 Interrupt Operation Interrupt Control Modes and Interrupt Operation Interrupt operations in the H8S/2633 Series differ depending on the interrupt control mode. NMI interrupts are accepted at all times except in the reset state and the hardware standby state. In the case of IRQ interrupts and on-chip supporting module interrupts, an enable bit is provided for each interrupt. Clearing an enable bit to 0 disables the corresponding interrupt request. Interrupt sources for which the enable bits are set to 1 are controlled by the interrupt controller. Table 5-5 shows the interrupt control modes. The interrupt controller performs interrupt control according to the interrupt control mode set by the INTM1 and INTM0 bits in SYSCR, the priorities set in IPR, and the masking state indicated by the I and UI bits in the CPU's CCR, and bits I2 to I0 in EXR. Table 5-5 Interrupt Control Modes Interrupt Mask Bits Description I -- I2 to I0 Interrupt mask control is performed by the I bit. Setting prohibited 8-level interrupt mask control is performed by bits I2 to I0. 8 priority levels can be set with IPR. Setting prohibited SYSCR Interrupt Priority Setting Control Mode INTM1 INTM0 Registers 0 -- 2 1 0 0 1 0 -- -- IPR -- 1 -- -- 139 Figure 5-4 shows a block diagram of the priority decision circuit. Interrupt control mode 0 I Interrupt acceptance control Interrupt source Default priority determination 8-level mask control Vector number IPR I2 to I0 Interrupt control mode 2 Figure 5-4 Block Diagram of Interrupt Control Operation (1) Interrupt Acceptance Control In interrupt control mode 0, interrupt acceptance is controlled by the I bit in CCR. Table 5-6 shows the interrupts selected in each interrupt control mode. Table 5-6 Interrupts Selected in Each Interrupt Control Mode (1) Interrupt Mask Bits Interrupt Control Mode 0 I 0 1 2 Legend * : Don't care * Selected Interrupts All interrupts NMI interrupts All interrupts 140 (2) 8-Level Control In interrupt control mode 2, 8-level mask level determination is performed for the selected interrupts in interrupt acceptance control according to the interrupt priority level (IPR). The interrupt source selected is the interrupt with the highest priority level, and whose priority level set in IPR is higher than the mask level. Table 5-7 Interrupts Selected in Each Interrupt Control Mode (2) Selected Interrupts All interrupts Highest-priority-level (IPR) interrupt whose priority level is greater than the mask level (IPR > I2 to I0) Interrupt Control Mode 0 2 (3) Default Priority Determination When an interrupt is selected by 8-level control, its priority is determined and a vector number is generated. If the same value is set for IPR, acceptance of multiple interrupts is enabled, and so only the interrupt source with the highest priority according to the preset default priorities is selected and has a vector number generated. Interrupt sources with a lower priority than the accepted interrupt source are held pending. Table 5-8 shows operations and control signal functions in each interrupt control mode. Table 5-8 Operations and Control Signal Functions in Each Interrupt Control Mode Interrupt Acceptance Control I Interrupt Setting Control Mode INTM1 INTM0 8-Level Control I2 to I0 IPR Default Priority Determination T (Trace) 0 2 0 1 0 0 X IM --* 1 X -- IM --* 2 PR -- T Legend : Interrupt operation control performed X : No operation (All interrupts enabled) IM : Used as interrupt mask bit PR : Sets priority -- : Not used Notes: *1 Set to 1 when interrupt is accepted. *2 Keep the initial setting. 141 5.4.2 Interrupt Control Mode 0 Enabling and disabling of IRQ interrupts and on-chip supporting module interrupts can be set by means of the I bit in the CPU's CCR. Interrupts are enabled when the I bit is cleared to 0, and disabled when set to 1. Figure 5-5 shows a flowchart of the interrupt acceptance operation in this case. [1] If an interrupt source occurs when the corresponding interrupt enable bit is set to 1, an interrupt request is sent to the interrupt controller. [2] The I bit is then referenced. If the I bit is cleared to 0, the interrupt request is accepted. If the I bit is set to 1, only an NMI interrupt is accepted, and other interrupt requests are held pending. [3] Interrupt requests are sent to the interrupt controller, the highest-ranked interrupt according to the priority system is accepted, and other interrupt requests are held pending. [4] When an interrupt request is accepted, interrupt exception handling starts after execution of the current instruction has been completed. [5] The PC and CCR are saved to the stack area by interrupt exception handling. The PC saved on the stack shows the address of the first instruction to be executed after returning from the interrupt handling routine. [6] Next, the I bit in CCR is set to 1. This masks all interrupts except NMI. [7] A vector address is generated for the accepted interrupt, and execution of the interrupt handling routine starts at the address indicated by the contents of that vector address. 142 Program execution status Interrupt generated? Yes Yes No NMI No No I=0 Yes Hold pending No IRQ0 Yes No IRQ1 Yes TEI4 Yes Save PC and CCR I1 Read vector address Branch to interrupt handling routine Figure 5-5 Flowchart of Procedure Up to Interrupt Acceptance in Interrupt Control Mode 0 143 5.4.3 Interrupt Control Mode 2 Eight-level masking is implemented for IRQ interrupts and on-chip supporting module interrupts by comparing the interrupt mask level set by bits I2 to I0 of EXR in the CPU with IPR. Figure 5-6 shows a flowchart of the interrupt acceptance operation in this case. [1] If an interrupt source occurs when the corresponding interrupt enable bit is set to 1, an interrupt request is sent to the interrupt controller. [2] When interrupt requests are sent to the interrupt controller, the interrupt with the highest priority according to the interrupt priority levels set in IPR is selected, and lower-priority interrupt requests are held pending. If a number of interrupt requests with the same priority are generated at the same time, the interrupt request with the highest priority according to the priority system shown in table 5-4 is selected. [3] Next, the priority of the selected interrupt request is compared with the interrupt mask level set in EXR. An interrupt request with a priority no higher than the mask level set at that time is held pending, and only an interrupt request with a priority higher than the interrupt mask level is accepted. [4] When an interrupt request is accepted, interrupt exception handling starts after execution of the current instruction has been completed. [5] The PC, CCR, and EXR are saved to the stack area by interrupt exception handling. The PC saved on the stack shows the address of the first instruction to be executed after returning from the interrupt handling routine. [6] The T bit in EXR is cleared to 0. The interrupt mask level is rewritten with the priority level of the accepted interrupt. If the accepted interrupt is NMI, the interrupt mask level is set to H'7. [7] A vector address is generated for the accepted interrupt, and execution of the interrupt handling routine starts at the address indicated by the contents of that vector address. 144 Program execution status Interrupt generated? Yes Yes NMI No No No Level 7 interrupt? Yes Mask level 6 or below? Yes Level 6 interrupt? No Yes Mask level 5 or below? Yes No Level 1 interrupt? No Yes No Mask level 0? Yes No Save PC, CCR, and EXR Hold pending Clear T bit to 0 Update mask level Read vector address Branch to interrupt handling routine Figure 5-6 Flowchart of Procedure Up to Interrupt Acceptance in Interrupt Control Mode 2 145 146 Interrupt acceptance Interrupt level determination Wait for end of instruction Instruction prefetch Stack Vector fetch Internal operation Internal operation Interrupt service routine instruction prefetch o (1) (7) (9) 5.4.4 Interrupt request signal Internal address bus (3) (5) (11) (13) Interrupt Exception Handling Sequence Internal read signal Internal write signal (2) (8) Figure 5-7 shows the interrupt exception handling sequence. The example shown is for the case where interrupt control mode 0 is set in advanced mode, and the program area and stack area are in on-chip memory. Figure 5-7 Interrupt Exception Handling (4) (6) (10) (12) Internal data us (14) (1) Instruction prefetch address (Not executed. This is the contents of the saved PC, the return address.) (2) (4) Instruction code (Not executed.) (3) Instruction prefetch address (Not executed.) (5) SP-2 (7) SP-4 (6) (8) Saved PC and saved CCR (9) (11) Vector address (10) (12) Interrupt handling routine start address (vector address contents) (13) Interrupt handling routine start address ((13) = (10) (12)) (14) First instruction of interrupt handling routine 5.4.5 Interrupt Response Times The H8S/2633 Series is capable of fast word transfer instruction to on-chip memory, and the program area is provided in on-chip ROM and the stack area in on-chip RAM, enabling highspeed processing. Table 5-9 shows interrupt response times - the interval between generation of an interrupt request and execution of the first instruction in the interrupt handling routine. The execution status symbols used in table 5-9 are explained in table 5-10. Table 5-9 Interrupt Response Times Normal Mode* 5 No. 1 2 3 4 5 6 Execution Status Interrupt priority determination* 1 Advanced Mode INTM1 = 0 3 1 to (19+2*SI) 2*S K 2*S I 2*S I 2 12 to 32 INTM1 = 1 3 1 to (19+2*SI) 3*S K 2*S I 2*S I 2 13 to 33 INTM1 = 0 3 INTM1 = 1 3 1 to (19+2*SI) 3*S K SI 2*S I 2 12 to 32 Number of wait states until executing 1 to instruction ends* 2 (19+2*SI) PC, CCR, EXR stack save Vector fetch Instruction fetch* 3 4 2*S K SI 2*S I 2 11 to 31 Internal processing* Total (using on-chip memory) Notes: *1 *2 *3 *4 *5 Two states in case of internal interrupt. Refers to MULXS and DIVXS instructions. Prefetch after interrupt acceptance and interrupt handling routine prefetch. Internal processing after interrupt acceptance and internal processing after vector fetch. Not available in the H8S/2633 Series. 147 Table 5-10 Number of States in Interrupt Handling Routine Execution Statuses Object of Access External Device 8 Bit Bus Symbol Instruction fetch Branch address read Stack manipulation SI SJ SK Internal Memory 1 2-State Access 4 3-State Access 6+2m 16 Bit Bus 2-State Access 2 3-State Access 3+m Legend m : Number of wait states in an external device access. 5.5 5.5.1 Usage Notes Contention between Interrupt Generation and Disabling When an interrupt enable bit is cleared to 0 to disable interrupts, the disabling becomes effective after execution of the instruction. In other words, when an interrupt enable bit is cleared to 0 by an instruction such as BCLR or MOV, if an interrupt is generated during execution of the instruction, the interrupt concerned will still be enabled on completion of the instruction, and so interrupt exception handling for that interrupt will be executed on completion of the instruction. However, if there is an interrupt request of higher priority than that interrupt, interrupt exception handling will be executed for the higher-priority interrupt, and the lower-priority interrupt will be ignored. The same also applies when an interrupt source flag is cleared to 0. Figure 5-8 shows an example in which the CMIEA bit in the TMR's TCR register is cleared to 0. 148 TCR write cycle by CPU CMIA exception handling o Internal address bus TCR address Internal write signal CMIEA CMFA CMIA interrupt signal Figure 5-8 Contention between Interrupt Generation and Disabling The above contention will not occur if an enable bit or interrupt source flag is cleared to 0 while the interrupt is masked. 5.5.2 Instructions that Disable Interrupts Instructions that disable interrupts are LDC, ANDC, ORC, and XORC. After any of these instructions is executed, all interrupts including NMI are disabled and the next instruction is always executed. When the I bit is set by one of these instructions, the new value becomes valid two states after execution of the instruction ends. 5.5.3 Times when Interrupts are Disabled There are times when interrupt acceptance is disabled by the interrupt controller. The interrupt controller disables interrupt acceptance for a 3-state period after the CPU has updated the mask level with an LDC, ANDC, ORC, or XORC instruction. 149 5.5.4 Interrupts during Execution of EEPMOV Instruction Interrupt operation differs between the EEPMOV.B instruction and the EEPMOV.W instruction. With the EEPMOV.B instruction, an interrupt request (including NMI) issued during the transfer is not accepted until the move is completed. With the EEPMOV.W instruction, if an interrupt request is issued during the transfer, interrupt exception handling starts at a break in the transfer cycle. The PC value saved on the stack in this case is the address of the next instruction. Therefore, if an interrupt is generated during execution of an EEPMOV.W instruction, the following coding should be used. L1: EEPMOV.W MOV.W BNE R4,R4 L1 5.6 DTC and DMAC Activation by Interrupt (DMAC and DTC functions are not available in the H8S/2695) Overview 5.6.1 The DTC and DMAC can be activated by an interrupt. In this case, the following options are available: * * * * Interrupt request to CPU Activation request to DTC Activation request to DMAC Selection of a number of the above For details of interrupt requests that can be used with to activate the DTC and DMAC, see section 9, Data Transfer Controller (DTC) and section 8, DMA Controller (DMAC). 5.6.2 Block Diagram Figure 5-9 shows a block diagram of the DTC and DMAC interrupt controller. 150 DMAC* Clear signal Disenable signal Interrupt request IRQ interrupt Interrupt source clear signal Selection circuit Select signal Clear signal DTCER DTC activation request vector number Control logic Clear signal DTC* On-chip supporting module DTVECR SWDTE clear signal Determination of priority Interrupt controller CPU interrupt request vector number CPU I, I2 to I0 Note: * This function is not available in the H8S/2695. Figure 5-9 Interrupt Control for DTC* and DMAC* 5.6.3 Operation (DMAC and DTC functions are not available in the H8S/2695) The interrupt controller has three main functions in DTC and DMAC control. (1) Selection of Interrupt Source: DMAC inputs activation factor directly to each channel. The activation factors for each channel of DMAC are selected by DTF3 to DTF0 bits of DMACR. The DTA bit of DMABCR can be used to select whether the selected activation factors are managed by DMAC. By setting the DTA bit to 1, the interrupt factor which were the activation factor for that DMAC do not act as the DTC activation factor or the CPU interrupt factor. Interrupt factors other than the interrupts managed by the DMAC are selected as DTC activation request or CPU interrupt request by the DTCERA to DTCERF of DTC and the DTCE bit of DTCERI. By specifying the DISEL bit of the DTC's MRB, it is possible to clear the DTCE bit to 0 after DTC data transfer, and request a CPU interrupt. 151 If DTC carries out the designate number of data transfers and the transfer counter reads 0, after DTC data transfer, the DTCE bit is also cleared to 0, and a CPU interrupt requested. (2) Determination of Priority: The DTC activation source is selected in accordance with the default priority order, and is not affected by mask or priority levels. See section 8.6, Interrupts, and section 9.3.3, DTC Vector Table for the respective priority. (3) Operation Order: If the same interrupt is selected as a DTC activation source and a CPU interrupt source, the DTC data transfer is performed first, followed by CPU interrupt exception handling. If the same interrupt is selected as the DMAC activation factor and as the DTC activation factor or CPU interrupt factor, these operate independently. They operate in accordance with the respective operating states and bus priorities. Table 5-11 shows the interrupt factor clear control and selection of interrupt factors by specification of the DTA bit of DMAC's DMABCR, DTC's DTCERA to DTCERF, DTCERI's DTCE bits, and the DISEL bit of DTC's MRB. Table 5-11 Interrupt Source Selection and Clearing Control Settings DMAC* DTA* 0 1 1 DTC*1 DTCE* 0 1 1 Interrupt Source Selection/Clearing Control 1 DISEL * * 0 1 DMAC* 1 DTC*1 X CPU X X X 1 * * Legend : The relevant interrupt is used. Interrupt source clearing is performed. (The CPU should clear the source flag in the interrupt handling routine.) : The relevant interrupt is used. The interrupt source is not cleared. X : The relevant bit cannot be used. * : Don't care Note: *1 This function is not available in the H8S/2695. (4) Notes on Use: SCI and A/D converter interrupt sources are cleared when the DMAC* or DTC* reads or writes to the prescribed register, and are not dependent upon the DTA*, DTCE*, and DISEL* bits. Note: * This function is not available in the H8S/2695. 152 Section 6 PC Break Controller (PBC) (This function is not available in the H8S/2695) 6.1 Overview The PC break controller (PBC) provides functions that simplify program debugging. Using these functions, it is easy to create a self-monitoring debugger, enabling programs to be debugged with the chip alone, without using an in-circuit emulator. Four break conditions can be set in the PBC: instruction fetch, data read, data write, and data read/write. 6.1.1 Features The PC break controller has the following features: * Two break channels (A and B) * The following can be set as break compare conditions: 24 address bits Bit masking possible Bus cycle Instruction fetch Data access: data read, data write, data read/write Bus master Either CPU or CPU/DTC can be selected * The timing of PC break exception handling after the occurrence of a break condition is as follows: Immediately before execution of the instruction fetched at the set address (instruction fetch) Immediately after execution of the instruction that accesses data at the set address (data access) * Module stop mode can be set The initial setting is for PBC operation to be halted. Register access is enabled by clearing module stop mode. 153 6.1.2 Block Diagram Figure 6-1 shows a block diagram of the PC break controller. BARA BCRA Output control Control logic Match signal Mask control Comparator Internal address Access status PC break interrupt Comparator Match signal Control logic Output control BCRB Mask control BARB Figure 6-1 Block Diagram of PC Break Controller 154 6.1.3 Register Configuration Table 6-1 shows the PC break controller registers. Table 6-1 PC Break Controller Registers Initial Value Name Break address register A Break address register B Break control register A Break control register B Module stop control register C Abbreviation BARA BARB BCRA BCRB MSTPCRC R/W R/W R/W R/(W)* R/(W)* R/W 2 2 Power-On Reset Manual Reset Address* 1 H'FE00 H'FE04 H'FE08 H'FE09 H'FDEA H'XX000000 Retained H'XX000000 Retained H'00 H'00 H'FF Retained Retained Retained Notes: *1 Lower 16 bits of the address. *2 Only 0 can be written, for flag clearing. 6.2 6.2.1 Bit Register Descriptions Break Address Register A (BARA) : 31 -- *** 24 -- 23 22 21 20 19 18 17 16 *** 7 6 5 4 3 2 1 0 *** BAA BAA BAA BAA BAA BAA BAA BAA 23 22 21 20 19 18 17 16 *** BAA BAA BAA BAA BAA BAA BAA BAA 7 6 5 4 3 2 1 0 0 0 0 0 0 0 0 0 R/W Initial value : Undefined :-- *** *** Unde- 0 0 0 0 0 0 0 0 fined -- R/W R/W R/W R/W R/W R/W R/W R/W *** *** R/W R/W R/W R/W R/W R/W R/W R/W BARA is a 32-bit readable/writable register that specifies the channel A break address. BAA23 to BAA0 are initialized to H'000000 by a power-on reset and in hardware standby mode. Bits 31 to 24--Reserved: These bits return an undefined value if read, and cannot be modified. Bits 23 to 0--Break Address A23 to A0 (BAA23-BAA0): These bits hold the channel A PC break address. 155 6.2.2 Break Address Register B (BARB) BARB is the channel B break address register. The bit configuration is the same as for BARA. 6.2.3 Bit Break Control Register A (BCRA) : 7 CMFA 6 CDA 0 R/W 5 4 3 2 1 0 BIEA 0 R/W BAMRA2 BAMRA1 BAMRA0 CSELA1 CSELA0 0 R/W 0 R/W 0 R/W 0 R/W 0 R/W Initial value : R/W 0 : R/(W)* Note: * Only 0 can be written, for flag clearing. BCRA is an 8-bit readable/writable register that controls channel A PC breaks. BCRA (1) selects the break condition bus master, (2) specifies bits subject to address comparison masking, and (3) specifies whether the break condition is applied to an instruction fetch or a data access. It also contains a condition match flag. BCRA is initialized to H'00 by a power-on reset and in hardware standby mode. Bit 7--Condition Match Flag A (CMFA): Set to 1 when a break condition set for channel A is satisfied. This flag is not cleared to 0. Bit 7 CMFA 0 Description [Clearing condition] When 0 is written to CMFA after reading CMFA = 1 1 [Setting condition] When a condition set for channel A is satisfied (Initial value) Bit 6--CPU Cycle/DTC Cycle Select A (CDA): Selects the channel A break condition bus master. Bit 6 CDA 0 1 Description PC break is performed when CPU is bus master PC break is performed when CPU or DTC is bus master (Initial value) 156 Bits 5 to 3--Break Address Mask Register A2 to A0 (BAMRA2-BAMRA0): These bits specify which bits of the break address (BAA23-BAA0) set in BARA are to be masked. Bit 5 Bit 4 Bit 3 BAMRA2 BAMRA1 BAMRA0 Description 0 0 0 1 1 0 1 1 0 0 1 1 0 1 All BARA bits are unmasked and included in break conditions (Initial value) BAA0 (lowest bit) is masked, and not included in break conditions BAA1-0 (lower 2 bits) are masked, and not included in break conditions BAA2-0 (lower 3 bits) are masked, and not included in break conditions BAA3-0 (lower 4 bits) are masked, and not included in break conditions BAA7-0 (lower 8 bits) are masked, and not included in break conditions BAA11-0 (lower 12 bits) are masked, and not included in break conditions BAA15-0 (lower 16 bits) are masked, and not included in break conditions Bits 2 and 1--Break Condition Select A (CSELA1, CSELA0): These bits selection an instruction fetch, data read, data write, or data read/write cycle as the channel A break condition. Bit 2 CSELA1 0 Bit 1 CSELA0 0 1 1 0 1 Description Instruction fetch is used as break condition Data read cycle is used as break condition Data write cycle is used as break condition Data read/write cycle is used as break condition (Initial value) Bits 0--Break Interrupt Enable A (BIEA): Enables or disables channel A PC break interrupts. Bit 0 BIEA 0 1 Description PC break interrupts are disabled PC break interrupts are enabled (Initial value) 157 6.2.4 Break Control Register B (BCRB) BCRB is the channel B break control register. The bit configuration is the same as for BCRA. 6.2.5 Bit Module Stop Control Register C (MSTPCRC) : 7 1 R/W 6 1 R/W 5 1 R/W 4 1 R/W 3 1 R/W 2 1 R/W 1 1 R/W 0 1 R/W MSTPC7 MSTPC6 MSTPC5 MSTPC4 MSTPC3 MSTPC2 MSTPC1 MSTPC0 Initial value : R/W : MSTPCRC is an 8-bit readable/writable register that performs module stop mode control. When the MSTPC4 bit is set to 1, PC break controller operation is stopped at the end of the bus cycle, and module stop mode is entered. Register read/write accesses are not possible in module stop mode. For details, see section 24.5, Module Stop Mode. MSTPCRC is initialized to H'FF by a power on reset and in hardware standby mode. It is not initialized by a manual reset and in software standby mode. Bit 4--Module Stop (MSTPC4): Specifies the PC break controller module stop mode. Bit 4 MSTPC4 0 1 Description PC break controller module stop mode is cleared PC break controller module stop mode is set (Initial value) 158 6.3 Operation The operation flow from break condition setting to PC break interrupt exception handling is shown in sections 6.3.1, PC Break Interrupt Due to Instruction Fetch, and 6.3.2, PC Break Interrupt Due to Data Access, taking the example of channel A. 6.3.1 PC Break Interrupt Due to Instruction Fetch (1) Initial settings Set the break address in BARA. For a PC break caused by an instruction fetch, set the address of the first instruction byte as the break address. Set the break conditions in BCRA. BCRA bit 6 (CDA): With a PC break caused by an instruction fetch, the bus master must be the CPU. Set 0 to select the CPU. BCRA bits 5-3 (BAMA2-0): Set the address bits to be masked. BCRA bits 2-1 (CSELA1-0): Set 00 to specify an instruction fetch as the break condition. BCRA bit 0 (BIEA): Set to 1 to enable break interrupts. (2) Satisfaction of break condition When the instruction at the set address is fetched, a PC break request is generated immediately before execution of the fetched instruction, and the condition match flag (CMFA) is set. (3) Interrupt handling After priority determination by the interrupt controller, PC break interrupt exception handling is started. 6.3.2 PC Break Interrupt Due to Data Access (1) Initial settings Set the break address in BARA. For a PC break caused by a data access, set the target ROM, RAM, I/O, or external address space address as the break address. Stack operations and branch address reads are included in data accesses. Set the break conditions in BCRA. BCRA bit 6 (CDA): Select the bus master. BCRA bits 5-3 (BAMA2-0): Set the address bits to be masked. BCRA bits 2-1 (CSELA1-0): Set 01, 10, or 11 to specify data access as the break condition. BCRA bit 0 (BIEA): Set to 1 to enable break interrupts. 159 (2) Satisfaction of break condition After execution of the instruction that performs a data access on the set address, a PC break request is generated and the condition match flag (CMFA) is set. (3) Interrupt handling After priority determination by the interrupt controller, PC break interrupt exception handling is started. 6.3.3 Notes on PC Break Interrupt Handling (1) The PC break interrupt is shared by channels A and B. The channel from which the request was issued must be determined by the interrupt handler. (2) The CMFA and CMFB flags are not cleared to 0, so 0 must be written to CMFA or CMFB after first reading the flag while it is set to 1. If the flag is left set to 1, another interrupt will be requested after interrupt handling ends. (3) A PC break interrupt generated when the DTC is the bus master is accepted after the bus has been transferred to the CPU by the bus controller. 6.3.4 Operation in Transitions to Power-Down Modes The operation when a PC break interrupt is set for an instruction fetch at the address after a SLEEP instruction is shown below. (1) When the SLEEP instruction causes a transition from high-speed (medium-speed) mode to sleep mode, or from subactive mode to subsleep mode: After execution of the SLEEP instruction, a transition is not made to sleep mode or subsleep mode, and PC break interrupt handling is executed. After execution of PC break interrupt handling, the instruction at the address after the SLEEP instruction is executed (figure 6-2 (A)). (2) When the SLEEP instruction causes a transition from high-speed (medium-speed) mode to subactive mode: After execution of the SLEEP instruction, a transition is made to subactive mode via direct transition exception handling. After the transition, PC break interrupt handling is executed, then the instruction at the address after the SLEEP instruction is executed (figure 6-2 (B)). (3) When the SLEEP instruction causes a transition from subactive mode to high-speed (mediumspeed) mode: 160 After execution of the SLEEP instruction, and following the clock oscillation settling time, a transition is made to high-speed (medium-speed) mode via direct transition exception handling. After the transition, PC break interrupt handling is executed, then the instruction at the address after the SLEEP instruction is executed (figure 6-2 (C)). (4) When the SLEEP instruction causes a transition to software standby mode or watch mode: After execution of the SLEEP instruction, a transition is made to the respective mode, and PC break interrupt handling is not executed. However, the CMFA or CMFB flag is set (figure 6-2 (D)). SLEEP instruction execution SLEEP instruction execution SLEEP instruction execution SLEEP instruction execution PC break exception handling System clock subclock Subclock system clock, oscillation settling time Transition to respective mode (D) Execution of instruction after sleep instruction (A) Direct transition exception handling Subactive mode Direct transition exception handling High-speed (medium-speed) mode PC break exception handling PC break exception handling Execution of instruction after sleep instruction (B) Execution of instruction after sleep instruction (C) Figure 6-2 Operation in Power-Down Mode Transitions 6.3.5 PC Break Operation in Continuous Data Transfer If a PC break interrupt is generated when the following operations are being performed, exception handling is executed on completion of the specified transfer. (1) When a PC break interrupt is generated at the transfer address of an EEPMOV.B instruction: PC break exception handling is executed after all data transfers have been completed and the EEPMOV.B instruction has ended. (2) When a PC break interrupt is generated at a DTC transfer address: PC break exception handling is executed after the DTC has completed the specified number of data transfers, or after data for which the DISEL bit is set to 1 has been transferred. 161 6.3.6 When Instruction Execution is Delayed by One State Caution is required in the following cases, as instruction execution is one state later than usual. (1) When the PBC is enabled (i.e. when the break interrupt enable bit is set to 1), execution of a one-word branch instruction (Bcc d:8, BSR, JSR, JMP, TRAPA, RTE, or RTS) located in onchip ROM or RAM is always delayed by one state. (2) When break interruption by instruction fetch is set, the set address indicates on-chip ROM or RAM space, and that address is used for data access, the instruction that executes the data access is one state later than in normal operation. (3) When break interruption by instruction fetch is set and a break interrupt is generated, if the executing instruction immediately preceding the set instruction has one of the addressing modes shown below, and that address indicates on-chip ROM or RAM, and that address is used for data access, the instruction will be one state later than in normal operation. @ERn, @(d:16,ERn), @(d:32,ERn), @-ERn/ERn+, @aa:8, @aa:24, @aa:32, @(d:8,PC), @(d:16,PC), @@aa:8 (4) When break interruption by instruction fetch is set and a break interrupt is generated, if the executing instruction immediately preceding the set instruction is NOP or SLEEP, or has #xx,Rn as its addressing mode, and that instruction is located in on-chip ROM or RAM, the instruction will be one state later than in normal operation. 162 6.3.7 Additional Notes (1) When a PC break is set for an instruction fetch at the address following a BSR, JSR, JMP, TRAPA, RTE, or RTS instruction: Even if the instruction at the address following a BSR, JSR, JMP, TRAPA, RTE, or RTS instruction is fetched, it is not executed, and so a PC break interrupt is not generated by the instruction fetch at the next address. (2) When the I bit is set by an LDC, ANDC, ORC, or XORC instruction, a PC break interrupt becomes valid two states after the end of the executing instruction. If a PC break interrupt is set for the instruction following one of these instructions, since interrupts, including NMI, are disabled for a 3-state period in the case of LDC, ANDC, ORC, and XORC, the next instruction is always executed. For details, see section 5, Interrupt Controller. (3) When a PC break is set for an instruction fetch at the address following a Bcc instruction: A PC break interrupt is generated if the instruction at the next address is executed in accordance with the branch condition, but is not generated if the instruction at the next address is not executed. (4) When a PC break is set for an instruction fetch at the branch destination address of a Bcc instruction: A PC break interrupt is generated if the instruction at the branch destination is executed in accordance with the branch condition, but is not generated if the instruction at the branch destination is not executed. 163 164 Section 7 Bus Controller 7.1 Overview The H8S/2633 Series has a built-in bus controller (BSC) that manages the external address space divided into eight areas. The bus specifications, such as bus width and number of access states, can be set independently for each area, enabling multiple memories to be connected easily. The bus controller also has a bus arbitration function, and controls the operation of the internal bus masters: the CPU, DMA controller (DMAC)*, and data transfer controller (DTC)*. Note: * This function is not available in the H8S/2695. 7.1.1 Features The features of the bus controller are listed below. * Manages external address space in area units Manages the external space as 8 areas of 2-Mbytes Bus specifications can be set independently for each area DRAM/Burst ROM interface can be set * Basic bus interface Chip selects (CS0 to CS7) can be output for areas 0 to 7 8-bit access or 16-bit access can be selected for each area 2-state access or 3-state access can be selected for each area Program wait states can be inserted for each area * DRAM interface* DRAM interface can be set for areas 2 to 5 (in advanced mode) Multiplexed output of row and column addresses (8/9/10-bit) 2 CAS method Burst operation (in high-speed mode) Insertion of TP cycle to secure RAS precharge time Selection of CAS-before-RAS refresh and self refresh * Burst ROM interface Burst ROM interface can be set for area 0 Choice of 1- or 2-state burst access 165 * Idle cycle insertion An idle cycle can be inserted in case of an external read cycle between different areas An idle cycle can be inserted in case of an external write cycle immediately after an external read cycle * Write buffer functions External write cycle and internal access can be executed in parallel DMAC* single-address mode and internal access can be executed in parallel * Bus arbitration function Includes a bus arbiter that arbitrates bus mastership among the CPU, DMAC* and DTC* * Other features Refresh counter (refresh timer) can be used as an interval timer External bus release function Note: * This function is not available in the H8S/2695. 166 7.1.2 Block Diagram Figure 7-1 shows a block diagram of the bus controller. CS0 to CS7 Area decoder Internal address bus ABWCR External bus control signals ASTCR BCRH BCRL BREQ BACK BREQO Bus controller Internal data bus Internal control signals Bus mode signal WAIT Wait controller WCRH WCRL DRAM controller MCR* External DRAM control signal DRAMCR* RTCNT* RTCOR* CPU bus request signal DTC* bus request signal Bus arbiter DMAC* bus request signal CPU bus acknowledge signal DTC* bus acknowledge signal DMAC* bus acknowledge signal Legend: ABWCR ASTCR BCRH BCRL WCRH WCRL : : : : : : Bus width control register Access state control register Bus control register H Bus control register L Wait control register H Wait control register L MCR* DRAMCR* RTCNT* RTCOR* : : : : Memory control register DRAM control register Refresh timer counter Refresh time constand register Note: * This function is not available in the H8S/2695. Figure 7-1 Block Diagram of Bus Controller 167 7.1.3 Pin Configuration Table 7-1 summarizes the pins of the bus controller. Table 7-1 Name Address strobe Read High write/ write enable* Low write Chip select 0 Chip select 1 Chip select 2/row address strobe 2* Bus Controller Pins Symbol AS RD HWR I/O Output Output Output Function Strobe signal indicating that address output on address bus is enabled. Strobe signal indicating that external space is being read. Strobe signal indicating that external space is to be written, and upper half (D15 to D8) of data bus is enabled. 2CAS method DRAM with enable signal*. Strobe signal indicating that external space is to be written, and lower half (D7 to D0) of data bus is enabled. Strobe signal showing selection of area 0 Strobe signal showing selection of area 1 Strobe signal showing selection of area 2. When area 2 is allocated to DRAM space, this is the row address strobe signal for DRAM*. When areas 2 to 5 are contiguous DRAM space, this is the row address strobe signal for DRAM*. Strobe signal showing selection of area 3. When area 3 is allocated to DRAM space, this is the row address strobe signal for DRAM*. When only area 2 is allocated to DRAM space, or when areas 2 to 5 are contiguous DRAM space, this is output enable signal*. Strobe signal showing selection of area 4. When area 4 is allocated to DRAM space, this is the row address strobe signal for DRAM*. Strobe signal showing selection of area 5. When area 5 is allocated to DRAM space, this is the row address strobe signal for DRAM*. Strobe signal showing selection of area 6 Strobe signal showing selection of area 7 2 CAS method DRAM upper column address strobe signal* DRAM lower column address strobe signal* LWR CS0 CS1 CS2 Output Output Output Output Chip select 3/row address strobe 3* CS3/OE* Output Chip select 4/row address strobe 4* Chip select 5/row address strobe 5* Chip select 6 Chip select 7 Upper column address strobe* Lower column strobe* CS4 Output CS5 Output CS6 CS7 CAS * LCAS * Output Output Output Output Note: * This function is not available in the H8S/2695. 168 Name Wait Bus request Bus request acknowledge Bus request output Symbol WAIT BREQ BACK BREQO I/O Input Input Output Output Function Wait request signal when accessing external 3-state access space. Request signal that releases bus to external device. Acknowledge signal indicating that bus has been released. External bus request signal used when internal bus master accesses external space when external bus is released. 7.1.4 Register Configuration Table 7-2 summarizes the registers of the bus controller. Table 7-2 Bus Controller Registers Initial Value Name Bus width control register Access state control register Wait control register H Wait control register L Bus control register H Bus control register L Pin function control register Memory control register DRAM control register Refresh timer counter Refresh time constant register Abbreviation ABWCR ASTCR WCRH WCRL BCRH BCRL PFCR MCR* 3 3 R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W Power-On Reset H'FF/H'00* 2 H'FF H'FF H'FF H'D0 H'08 H'0D/H'00 H'00 H'00 H'00 H'FF Manual Reset Retained Retained Retained Retained Retained Retained Retained Retained Retained Retained Retained Address* 1 H'FED0 H'FED1 H'FED2 H'FED3 H'FED4 H'FED5 H'FDEB H'FED6 H'FED7 H'FED8 H'FED9 DRAMCR* RTCNT* 3 3 RTCOR* Notes: *1 Lower 16 bits of the address. *2 Determined by the MCU operating mode. *3 This function is not available in the H8S/2695. 169 7.2 7.2.1 Bit Register Descriptions Bus Width Control Register (ABWCR) : 7 ABW7 6 ABW6 1 R/W 0 R/W 5 ABW5 1 R/W 0 R/W 4 ABW4 1 R/W 0 R/W 3 ABW3 1 R/W 0 R/W 2 ABW2 1 R/W 0 R/W 1 ABW1 1 R/W 0 R/W 0 ABW0 1 R/W 0 R/W Modes 5 to 7 Initial value : R/W Mode 4 Initial value : R/W : : 1 R/W 0 R/W ABWCR is an 8-bit readable/writable register that designates each area for either 8-bit access or 16-bit access. ABWCR sets the data bus width for the external memory space. The bus width for on-chip memory and internal I/O registers is fixed regardless of the settings in ABWCR. In normal mode, the settings of bits ABW7 to ABW1 have no effect on operation. After a power-on reset and in hardware standby mode, ABWCR is initialized to H'FF in modes 5 to 7, and to H'00 in mode 4. It is not initialized by a manual reset or in software standby mode. Bits 7 to 0--Area 7 to 0 Bus Width Control (ABW7 to ABW0): These bits select whether the corresponding area is to be designated for 8-bit access or 16-bit access. Bit n ABWn 0 1 Description Area n is designated for 16-bit access Area n is designated for 8-bit access (n = 7 to 0) 170 7.2.2 Bit Access State Control Register (ASTCR) : 7 AST7 1 R/W 6 AST6 1 R/W 5 AST5 1 R/W 4 AST4 1 R/W 3 AST3 1 R/W 2 AST2 1 R/W 1 AST1 1 R/W 0 AST0 1 R/W Initial value : R/W : ASTCR is an 8-bit readable/writable register that designates each area as either a 2-state access space or a 3-state access space. ASTCR sets the number of access states for the external memory space. The number of access states for on-chip memory and internal I/O registers is fixed regardless of the settings in ASTCR. In normal mode, the settings of bits AST7 to AST1 have no effect on operation. ASTCR is initialized to H'FF by a power-on reset and in hardware standby mode. It is not initialized by a manual reset or in software standby mode. Bits 7 to 0--Area 7 to 0 Access State Control (AST7 to AST0): These bits select whether the corresponding area is to be designated as a 2-state access space or a 3-state access space. Wait state insertion is enabled or disabled at the same time. Bit n ASTn 0 1 Description Area n is designated for 2-state access Wait state insertion in area n external space is disabled Area n is designated for 3-state access Wait state insertion in area n external space is enabled (Initial value) (n = 7 to 0) 171 7.2.3 Wait Control Registers H and L (WCRH, WCRL) WCRH and WCRL are 8-bit readable/writable registers that select the number of program wait states for each area. Program waits are not inserted in the case of on-chip memory or internal I/O registers. WCRH and WCRL are initialized to H'FF by a power-on reset and in hardware standby mode. They are not initialized by a manual reset or in software standby mode. (1) WCRH Bit : 7 W71 Initial value : R/W : 1 R/W 6 W70 1 R/W 5 W61 1 R/W 4 W60 1 R/W 3 W51 1 R/W 2 W50 1 R/W 1 W41 1 R/W 0 W40 1 R/W Bits 7 and 6--Area 7 Wait Control 1 and 0 (W71, W70): These bits select the number of program wait states when area 7 in external space is accessed while the AST7 bit in ASTCR is set to 1. Bit 7 W71 0 Bit 6 W70 0 1 1 0 1 Description Program wait not inserted when external space area 7 is accessed 1 program wait state inserted when external space area 7 is accessed 2 program wait states inserted when external space area 7 is accessed 3 program wait states inserted when external space area 7 is accessed (Initial value) Bits 5 and 4--Area 6 Wait Control 1 and 0 (W61, W60): These bits select the number of program wait states when area 6 in external space is accessed while the AST6 bit in ASTCR is set to 1. Bit 5 W61 0 Bit 4 W60 0 1 1 0 1 Description Program wait not inserted when external space area 6 is accessed 1 program wait state inserted when external space area 6 is accessed 2 program wait states inserted when external space area 6 is accessed 3 program wait states inserted when external space area 6 is accessed (Initial value) 172 Bits 3 and 2--Area 5 Wait Control 1 and 0 (W51, W50): These bits select the number of program wait states when area 5 in external space is accessed while the AST5 bit in ASTCR is set to 1. Bit 3 W51 0 Bit 2 W50 0 1 1 0 1 Description Program wait not inserted when external space area 5 is accessed 1 program wait state inserted when external space area 5 is accessed 2 program wait states inserted when external space area 5 is accessed 3 program wait states inserted when external space area 5 is accessed (Initial value) Bits 1 and 0--Area 4 Wait Control 1 and 0 (W41, W40): These bits select the number of program wait states when area 4 in external space is accessed while the AST4 bit in ASTCR is set to 1. Bit 1 W41 0 Bit 0 W40 0 1 1 0 1 Description Program wait not inserted when external space area 4 is accessed 1 program wait state inserted when external space area 4 is accessed 2 program wait states inserted when external space area 4 is accessed 3 program wait states inserted when external space area 4 is accessed (Initial value) 173 (2) WCRL Bit : 7 W31 Initial value : R/W : 1 R/W 6 W30 1 R/W 5 W21 1 R/W 4 W20 1 R/W 3 W11 1 R/W 2 W10 1 R/W 1 W01 1 R/W 0 W00 1 R/W Bits 7 and 6--Area 3 Wait Control 1 and 0 (W31, W30): These bits select the number of program wait states when area 3 in external space is accessed while the AST3 bit in ASTCR is set to 1. Bit 7 W31 0 Bit 6 W30 0 1 1 0 1 Description Program wait not inserted when external space area 3 is accessed 1 program wait state inserted when external space area 3 is accessed 2 program wait states inserted when external space area 3 is accessed 3 program wait states inserted when external space area 3 is accessed (Initial value) Bits 5 and 4--Area 2 Wait Control 1 and 0 (W21, W20): These bits select the number of program wait states when area 2 in external space is accessed while the AST2 bit in ASTCR is set to 1. Bit 5 W21 0 Bit 4 W20 0 1 1 0 1 Description Program wait not inserted when external space area 2 is accessed 1 program wait state inserted when external space area 2 is accessed 2 program wait states inserted when external space area 2 is accessed 3 program wait states inserted when external space area 2 is accessed (Initial value) 174 Bits 3 and 2--Area 1 Wait Control 1 and 0 (W11, W10): These bits select the number of program wait states when area 1 in external space is accessed while the AST1 bit in ASTCR is set to 1. Bit 3 W11 0 Bit 2 W10 0 1 1 0 1 Description Program wait not inserted when external space area 1 is accessed 1 program wait state inserted when external space area 1 is accessed 2 program wait states inserted when external space area 1 is accessed 3 program wait states inserted when external space area 1 is accessed (Initial value) Bits 1 and 0--Area 0 Wait Control 1 and 0 (W01, W00): These bits select the number of program wait states when area 0 in external space is accessed while the AST0 bit in ASTCR is set to 1. Bit 1 W01 0 Bit 0 W00 0 1 1 0 1 Description Program wait not inserted when external space area 0 is accessed 1 program wait state inserted when external space area 0 is accessed 2 program wait states inserted when external space area 0 is accessed 3 program wait states inserted when external space area 0 is accessed (Initial value) 7.2.4 Bit Bus Control Register H (BCRH) : 7 ICIS1 1 R/W 6 ICIS0 1 R/W 5 0 R/W 4 1 R/W 3 0 R/W 2 0 R/W 1 0 R/W 0 0 R/W BRSTRM BRSTS1 BRSTS0 RMTS2* RMTS1* RMTS0* Initial value : R/W : BCRH is an 8-bit readable/writable register that selects enabling or disabling of idle cycle insertion, and the memory interface for area 0. BCRH is initialized to H'D0 by a power-on reset and in hardware standby mode. It is not initialized by a manual reset or in software standby mode. Note: * DRAM interface is not available in the H8S/2695. Only a 0 may be written to RMTS2, RMTS1, or RMTS0. 175 Bit 7--Idle Cycle Insert 1 (ICIS1): Selects whether or not one idle cycle state is to be inserted between bus cycles when successive external read cycles are performed in different areas. Bit 7 ICIS1 0 1 Description Idle cycle not inserted in case of successive external read cycles in different areas Idle cycle inserted in case of successive external read cycles in different areas (Initial value) Bit 6--Idle Cycle Insert 0 (ICIS0): Selects whether or not one idle cycle state is to be inserted between bus cycles when successive external read and external write cycles are performed . Bit 6 ICIS0 0 1 Description Idle cycle not inserted in case of successive external read and external write cycles Idle cycle inserted in case of successive external read and external write cycles (Initial value) Bit 5--Burst ROM Enable (BRSTRM): Selects whether area 0 is used as a burst ROM interface. Bit 5 BRSTRM 0 1 Description Area 0 is basic bus interface Area 0 is burst ROM interface (Initial value) Bit 4--Burst Cycle Select 1 (BRSTS1): Selects the number of burst cycles for the burst ROM interface. Bit 4 BRSTS1 0 1 Description Burst cycle comprises 1 state Burst cycle comprises 2 states (Initial value) 176 Bit 3--Burst Cycle Select 0 (BRSTS0): Selects the number of words that can be accessed in a burst ROM interface burst access. Bit 3 BRSTS0 0 1 Description Max. 4 words in burst access Max. 8 words in burst access (Initial value) Bits 2 to 0--RAM Type Select (RMTS2 to RMTS0): In advanced mode, these bits select the memory interface for areas 2 to 5. When DRAM space* is selected, the appropriate area becomes the DRAM interface*. Note: * This function is not available in the H8S/2695. Only a 0 may be written to RMTS2, RMTS1, or RMTS0. Bit 2 RMTS2 0 Bit 1 RMTS1 0 Bit 0 RMTS0 0 1 1 0 1 1 1 1 Area 5 Normal space Normal space Normal space DRAM space Contiguous DRAM space Area 4 Normal space Normal space Normal space DRAM space Contiguous DRAM space Description Area 3 Normal space Normal space DRAM space DRAM space Contiguous DRAM space Area 2 Normal space DRAM space DRAM space DRAM space Contiguous DRAM space Note: When all areas selected in DRAM are 8-bit space, the PF2 pin can be used as an I/O port and for BREQO and WAIT. When contiguous RAM is selected set the appropriate bus width and number of access states (the number of programmable waits) to the same values for all of areas 2 to 5. Do not set other than the above combinations. 177 7.2.5 Bit Bus Control Register L (BCRL) : 7 BRLE 0 R/W 6 BREQOE 0 R/W 5 -- 0 -- 4 OES* 0 R/W 3 DDS* 1 R/W 2 RCTS* 0 R/W 1 WDBE 0 R/W 0 WAITE 0 R/W Initial value : R/W : Note: * This function is not available in the H8S/2695. BCRL is an 8-bit readable/writable register that performs selection of the external bus-released state protocol, enabling or disabling of the write data buffer function, and enabling or disabling of WAIT pin input. BCRL is initialized to H'08 by a power-on reset and in hardware standby mode. It is not initialized by a manual reset or in software standby mode. Bit 7--Bus Release Enable (BRLE): Enables or disables external bus release. Bit 7 BRLE 0 1 Description External bus release is disabled. BREQ, BACK and BREQO can be used as I/O ports (Initial value) External bus release is enabled Bit 6--BREQO Pin Enable (BREQOE): Outputs a signal that requests the external bus master to drop the bus request signal (BREQ) in the external bus release state, when an internal bus master performs an external space access, or when a refresh request is generated. Bit 6 BREQOE 0 1 Description BREQO output disabled. BREQO can be used as I/O port BREQO output enabled (Initial value) Bit 5--Reserved: This bit cannot be modified and is always read as 0. 178 Bit 4--OE Select (OES): Selects the CS3 pin as the OE pin. Bit 4 OES 0 1 Description Uses the CS3 pin as the port or as CS3 signal output When only area 2 is set for DRAM, or when areas 2 to 5 are set as contiguous DRAM space, the CS3 pin is used as the OE pin (Initial value) Bit 3--DACK Timing Select (DDS): When using the DRAM interface, this bit selects the DMAC single address transfer bus timing. Bit 3 DDS 0 1 Description When performing DMAC single address transfers to DRAM, always execute full access. The DACK signal is output as a low-level signal from the Tr or T1 cycle Burst access is also possible when performing DMAC single address tranfers to DRAM. The DACK signal is output as a low-level signal from the TC1 or T2 cycle (Initial value) Bit 2--Read CAS Timing Select (RCTS): Selects the CAS signal output timing. Bit 2 RCTS 0 1 Description CAS signal output timing is same when reading and writing When reading, CAS signal is asserted half cycle earlier than when writing (Initial value) Bit 1--Write Data Buffer Enable (WDBE): This bit selects whether or not to use the write buffer function in the external write cycle or the DMAC* single address cycle. Bit 1 WDBE 0 1 Description Write data buffer function not used Write data buffer function used (Initial value) 179 Bit 0--WAIT Pin Enable (WAITE): Selects enabling or disabling of wait input by the WAIT pin. Bit 0 WAITE 0 1 Description Wait input by WAIT pin disabled. WAIT pin can be used as I/O port Wait input by WAIT pin enabled (Initial value) 7.2.6 Bit Pin Function Control Register (PFCR) : 7 CSS07 0 R/W 6 0 R/W 5 0 R/W 4 0 R/W 3 AE3 1/0 R/W 2 AE2 1/0 R/W 1 AE1 0 R/W 0 AE0 1/0 R/W CSS36 BUZZE* LCASS* Initial value : R/W : Note: * This function is not available in the H8S/2695. Only 0 should be written to the BUZZE and LCASS bits. PFCR is an 8-bit read/write register that controls the CS selection of pins PG4 and PG1, controls LCAS selection of pins PF2 and PF6, and controls the address output in expanded mode with ROM. PFCR is initialized to H'0D/H'00 by a power-on reset and in hardware standby mode. It retains its previous state by a manual reset or in software standby mode. Bit 7--CS0/CS7 Select (CSS07): This bit selects the contents of CS output via the PG4 pin. In modes 4, 5, and 6, setting the corresponding DDR to 1 outputs the selected CS. Bit 7 CSS07 0 1 Description Selects CS0 Selects CS7 (Initial value) Bit 6--CS3/CS6 Select (CSS36): This bit selects the contents of CS output via the PG1 pin. In modes 4, 5, and 6, setting the corresponding DDR to 1 outputs the selected CS. Bit 6 CSS36 0 1 Description Selects CS3 Selects CS6 (Initial value) 180 Bit 5--BUZZ Output Enable (BUZZE): This bit enables/disables BUZZ output via the PF1 pin. The WDT1 input clock, selected with PSS and CKS2 to CKS0, is output as the BUZZ signal. See section 15.2.4, Pin Function Control Register (PFCR) for details of BUZZ output. Bit 5 BUZZE 0 1 Description Functions as PF1 input pin Functions as BUZZ output pin (Initial value) Bit 4--LCAS Output Pin Select Bit (LCASS): Selects output pin for LCAS signal. Bit 4 LCASS 0 1 Description Outputs LCAS signal from PF2 Outputs LCAS signal from PF6 (Initial value) Bits 3 to 0--Address Output Enable 3 to 0 (AE3-AE0): These bits select enabling or disabling of address outputs A8 to A23 in ROMless expanded mode and modes with ROM. When a pin is enabled for address output, the address is output regardless of the corresponding DDR setting. When a pin is disabled for address output, it becomes an output port when the corresponding DDR bit is set to 1. 181 Bit 3 AE3 0 Bit 2 AE2 0 Bit 1 AE1 0 Bit 0 AE0 0 1 Description A8-A23 address output disabled (Initial value * ) A8 address output enabled; A9-A23 address output disabled A8, A9 address output enabled; A10-A23 address output disabled A8-A10 address output enabled; A11-A23 address output disabled A8-A11 address output enabled; A12-A23 address output disabled A8-A12 address output enabled; A13-A23 address output disabled A8-A13 address output enabled; A14-A23 address output disabled A8-A14 address output enabled; A15-A23 address output disabled A8-A15 address output enabled; A16-A23 address output disabled A8-A16 address output enabled; A17-A23 address output disabled A8-A17 address output enabled; A18-A23 address output disabled A8-A18 address output enabled; A19-A23 address output disabled A8-A19 address output enabled; A20-A23 address output disabled A8-A20 address output enabled; A21-A23 address output disabled (Initial value * ) A8-A21 address output enabled; A22, A23 address output disabled A8-A23 address output enabled 1 0 1 1 0 0 1 1 0 1 1 0 0 0 1 1 0 1 1 0 0 1 1 0 1 Note: * In expanded mode with ROM, bits AE3 to AE0 are initialized to B'0000. In ROMless expanded mode, bits AE3 to AE0 are initialized to B'1101. Address pins A0 to A7 are made address outputs by setting the corresponding DDR bits to 1. 182 7.2.7 Bit Memory Control Register (MCR)* : 7 TPC 0 R/W 6 BE 0 R/W 5 RCDM 0 R/W 4 CW2 0 R/W 3 MXC1 0 R/W 2 MXC0 0 R/W 1 RLW1 0 R/W 0 RLW0 0 R/W Initial value : R/W : The MCR is an 8-bit read/write register that, when areas 2 to 5 are set as the DRAM interface, controls the DRAM strobe method, number of precharge cycles, access mode, address multiplex shift amount, and number of wait states to be inserted when a refresh is performed. The MCR is initialized to H'00 at a power-on reset and in hardware standby mode. It is not initialized at a manual reset or in software standby mode. Note: * This function is not available in the H8S/2695. Bit 7--TP Cycle Control (TPC): When accessing areas 2 to 5, allocated to DRAM, this bit selects whether the precharge cycle (T P) is 1 state or 2 states. Bit 7 TPC 0 1 Description Insert 1 precharge cycle Insert 2 precharge cycles (Initial value) Bit 6--Burst Access Enable (BE): This bit enables/disables burst access of areas 2 to 5, allocated as DRAM space. DRAM space burst access is in high-speed page mode. When using EDO type in this case, either select OE output or RAS up mode. Bit 6 BE 0 1 Description Burst disabled (always full access) Access DRAM space in high-speed page mode (Initial value) Bit 5--RAS Down Mode (RCDM): When areas 2 to 5 are allocated to DRAM space, this bit selects whether the RAS signal level remains Low while waiting for the next DRAM access (RAS down mode) or the RAS signal level returns to High (RAS up mode), when DRAM access is discontinued. 183 Bit 5 RCDM 0 1 Description DRAM interface: selects RAS up mode DRAM interface: selects RAS down mode (Initial value) Bit 4--Reserved (CW2): Only write 0 to this bit. Bits 3 and 2--Multiplex shift counts 1 and 0 (MXC1 and MXC0): These bits select the shift amount to the low side of the row address of the multiplexed row/column address in DRAM interface mode. They also select the row address to be compared in burst operation of the DRAM interface. Bit 3 MXC1 0 Bit 2 MXC0 0 Description 8-bit shift (Initial value) (1) 8-bit access space: target row addresses for comparison are A23 to A8 (2) 16-bit access space: target row addresses for comparison are A23 to A9 1 9-bit shift (1) 8-bit access space: target row addresses for comparison are A23 to A9 (2) 16-bit access space: target row addresses for comparison are A23 to A10 1 0 10-bit shift (1) 8-bit access space: target row addresses for comparison are A23 to A10 (2) 16-bit access space: target row addresses for comparison are A23 to A11 1 -- Bits 1 and 0--Refresh Cycle Wait Control 1 and 0 (RLW1 and RLW0): These bits select the number of wait states to be inserted in the CAS-before-RAS refresh cycle of the DRAM interface. The selected number of wait states is applied to all areas set as DRAM space. Wait input via the WAIT pin is disabled. Bit 1 RLW1 0 Bit 0 RLW0 0 1 1 0 1 Description Do not insert wait state Insert 1 wait state Insert 2 wait states Insert 3 wait states (Initial value) 184 7.2.8 Bit DRAM Control Register (DRAMCR)* : 7 RFSHE 0 R/W 6 CBRM 0 R/W 5 RMODE 0 R/W 4 CMF 0 R/W 3 CMIE 0 R/W 2 CKS2 0 R/W 1 CKS1 0 R/W 0 CKS0 0 R/W Initial value : R/W : The DRAMCR is an 8-bit read/write register that selects DRAM refresh mode, the refresh counter clock, and sets the refresh timer control. The DRAMCR is initialized to H'00 at a power-on reset and in hardware standby mode. It is not initialized at a manual reset or in software standby mode. Note: * This function is not available in the H8S/2695. Bit 7--Refresh Control (RFSHE): This bit selects whether or not to perform refresh control. When not performing refresh control, the refresh timer can be used as an interval timer. Bit 7 RFSHE 0 1 Description Do not perform refresh control Perform refresh control (Initial value) Bit 6--CBR Refresh Mode (CBRM): This bit selects whether CBR refresh is performed in parallel with other external access, or only CBR refresh is performed. Bit 6 CBRM 0 1 Description Enables external access during CAS-before-RAS refresh Disables external access during CAS-before-RAS refresh (Initial value) Bit 5--Refresh Mode (RMODE): This bit selects whether or not to perform a self refresh in software standby mode when performing refresh control (RFSHE=1). Bit 5 RMODE 0 1 Description Do not perform self-refresh in software standby mode Perform self-refresh in software standby mode (Initial value) 185 Bit 4--Compare Match Flag (CMF): This status flag shows a match between RTCNT and RTCOR values. When performing refresh control (RFSHE=1), write 1 to CMF when writing to the DRAMCR. Bit 4 CMF 0 1 Description [Clearing] When CMF=1, read the CMF flag, then clear the CMF flag to 0 [Setting] CMF is set when RTCNT=RTCOR (Initial value) Bit 3--Compare Match Interrupt Enable (CMIE): This bit enables/disables the CMF flag interrupt request (CMI) when the DRAMCR CMF flag is set to 1. CMIE is always 0 when performing refresh control (RFSHE = 1). Bit 3 CMIE 0 1 Description Disables CMF flag interrupt requests (CMI) Enables CMF flag interrupt requests (CMI) (Initial value) Bits 2 to 0--Refresh Counter Clock Select (CKS2 to CKS0): These bits select from the seven internal clocks derived by dividing the system clock (o) to be input to RTCNT. The RTCNT count up starts when CKS2 to CKS0 are set to select the input clock. Bit 2 CKS2 0 Bit 1 CKS1 0 1 1 0 1 Bit 0 CKS0 0 1 0 1 0 1 0 1 Description Stops count Counts on o/2 Counts on o/8 Counts on o/32 Counts on o/128 Counts on o/512 Counts on o/2048 Counts on o/4096 (Initial value) 186 7.2.9 Bit Refresh Timer Counter (RTCNT)* : 7 0 R/W 6 0 R/W 5 0 R/W 4 0 R/W 3 0 R/W 2 0 R/W 1 0 R/W 0 0 R/W Initial value : R/W : RTCNT is an 8-bit read/write up-counter. RTCNT counts up using the internal clock selected by the DRAMCR CKS2 to CKS0 bits. When RTCNT matches the value in RTCOR (compare match), the DRAMCR CMF flag is set to 1 and RTCNT is cleared to H'00. If, at this point, DRAMCR RFSHE is set to 1, the refresh cycle starts. When the DRAMCR CMIE bit is set to 1, a compare match interrupt (CMI) is also generated. RTCNT is initialized to H'00 at a power-on reset and in hardware standby mode. It is not initialized at a manual reset or in software standby mode. Note: * This function is not available in the H8S/2695. 7.2.10 Bit Refresh Time Constant Register (RTCOR)* : 7 1 R/W 6 1 R/W 5 1 R/W 4 1 R/W 3 1 R/W 2 1 R/W 1 1 R/W 0 1 R/W Initial value : R/W : RTCOR is an 8-bit read/write register that sets the RTCNT compare match cycle. The values of RTCOR and RTCNT are constantly compared and, when both value match, the DRAMCR CMF flag is set to 1 and RTCNT is cleared to H'00. RTCOR is initialized to H'FF at a power-on reset and in hardware standby mode. It is not initialized at a manual reset or in software standby mode. Note: * This function is not available in the H8S/2695. 187 7.3 7.3.1 Overview of Bus Control Area Partitioning In advanced mode, the bus controller partitions the 16 Mbytes address space into eight areas, 0 to 7, in 2-Mbyte units, and performs bus control for external space in area units. A chip select signal (CS0 to CS7) can be output for each area. In normal mode*, it controls a 64-kbyte address space comprising part of area 0. Figure 7-2 shows an outline of the memory map. Note: * Not available in the H8S/2633 Series. H'000000 Area 0 (2Mbytes) H'1FFFFF H'200000 Area 1 (2Mbytes) H'3FFFFF H'400000 Area 2 (2Mbytes) H'5FFFFF H'600000 Area 3 (2Mbytes) H'7FFFFF H'800000 Area 4 (2Mbytes) H'9FFFFF H'A00000 Area 5 (2Mbytes) H'BFFFFF H'C00000 Area 6 (2Mbytes) H'DFFFFF H'E00000 Area 7 (2Mbytes) H'FFFFFF (1) Advanced mode H'0000 H'FFFF (2) Normal mode* Note: * Not available in the H8S/2633 Series. Figure 7-2 Overview of Area Partitioning 188 7.3.2 Bus Specifications The external space bus specifications consist of three elements: bus width, number of access states, and number of program wait states. The bus width and number of access states for on-chip memory and internal I/O registers are fixed, and are not affected by the bus controller. (1) Bus Width: A bus width of 8 or 16 bits can be selected with ABWCR. An area for which an 8-bit bus is selected functions as an 8-bit access space, and an area for which a 16-bit bus is selected functions as a16-bit access space. If all areas are designated for 8-bit access, 8-bit bus mode is set; if any area is designated for 16-bit access, 16-bit bus mode is set. When the burst ROM interface is designated, 16-bit bus mode is always set. (2) Number of Access States: Two or three access states can be selected with ASTCR. An area for which 2-state access is selected functions as a 2-state access space, and an area for which 3state access is selected functions as a 3-state access space. With the DRAM interface* or the burst ROM interface, the number of access states may be determined without regard to ASTCR. When 2-state access space is designated, wait insertion is disabled. Note: * This function is not available in the H8S/2695. (3) Number of Program Wait States: When 3-state access space is designated by ASTCR, the number of program wait states to be inserted automatically is selected with WCRH and WCRL. From 0 to 3 program wait states can be selected. Table 7-3 shows the bus specifications for each basic bus interface area. 189 Table 7-3 ABWCR ABWn 0 Bus Specifications for Each Area (Basic Bus Interface) ASTCR ASTn 0 1 WCRH, WCRL Wn1 -- 0 Wn0 -- 0 1 1 0 1 Bus Specifications (Basic Bus Interface) Bus Width 16 Program Wait Access States States 2 3 0 0 1 2 3 8 2 3 0 0 1 2 3 1 0 1 -- 0 -- 0 1 1 0 1 7.3.3 Memory Interfaces The H8S/2633 Series memory interfaces comprise a basic bus interface that allows direct connection or ROM, SRAM, and so on, DRAM interface* with direct DRAM connection and a burst ROM interface that allows direct connection of burst ROM. The memory interface can be selected independently for each area. An area for which the basic bus interface is designated functions as normal space, and areas set for DRAM interface are DRAM spaces an area for which the burst ROM interface is designated functions as burst ROM space. Note: * This function is not available in the H8S/2695. 190 7.3.4 Interface Specifications for Each Area The initial state of each area is basic bus interface, 3-state access space. The initial bus width is selected according to the operating mode. The bus specifications described here cover basic items only, and the sections on each memory interface (section 7.4, Basic Bus Interface, section 7.5, DRAM Interface, and section 7.7, Burst ROM Interface) should be referred to for further details. Area 0: Area 0 includes on-chip ROM, and in ROM-disabled expansion mode, all of area 0 is external space. In ROM-enabled expansion mode, the space excluding on-chip ROM is external space. A CS0 signal can be output when accessing area 0 external space. Either basic bus interface or burst ROM interface can be selected for area 0. Areas 1 and 6: In external expansion mode, all of areas 1 and 6 is external space. CS1 and CS6 pin signals can be output when accessing the area 1 and 6 external space. Only the basic bus interface can be used for areas 1 and 6. Areas 2 to 5: In external expansion mode, all of areas 2 to 5 is external space. CS2 to CS5 signals can be output when accessing area 2 to 5 external space. The standard bus interface or DRAM interface* can be selected for areas 2 to 5. In DRAM interface mode, signals CS2 to CS5 are used as RAS signals. Note: * This function is not available in the H8S/2695. Area 7: Area 7 includes the on-chip RAM and internal I/O registers. In external expansion mode, the space excluding the on-chip RAM and internal I/O registers is external space. The on-chip RAM is enabled when the RAME bit in the system control register (SYSCR) is set to 1; when the RAME bit is cleared to 0, the on-chip RAM is disabled and the corresponding space becomes external space. A CS7 signal can be output when accessing area 7 external space. Only the basic bus interface can be used for the area 7. 191 7.3.5 Chip Select Signals This LSI allows chip select signals (CS0 to CS7) to be output for each of areas 0 to 7. The level of these signals is set Low when accessing the external space of the respective area. Figure 7-3 shows example CSn (where n=0 to 7) signal output timing. The output of the CSn signal can be enabled or disabled by the data direction register (DDR) of the port of the corresponding CSn pin. In ROM-disabled expanded mode, the CS0 pin is set for output after a power-on reset. The CS1 to CS7 pins are set for input after a power-on reset, so the corresponding DDR must be set to 1 to allow the output of CS1 to CS7 signals. In ROM-disabled expanded mode, all of pins CS0 to CS7 are set for input after a power-on reset, so the corresponding DDR must be set to 1 to allow the output of CS0 to CS7 signals. See sections 10A and 10B, I/O Ports for details. When areas 2 to 5 are set as DRAM* space, CS2 to CS5 outputs are used as RAS signals. Note: * DRAM interface is not available in the H8S/2695. Bus cycle T1 o T2 T3 Address bus Area n external address CSn Figure 7-3 CSn Signal Output Timing (where n=0 to 7) 192 7.4 7.4.1 Basic Bus Interface Overview The basic bus interface enables direct connection of ROM, SRAM, and so on. The bus specifications can be selected with ABWCR, ASTCR, WCRH, and WCRL (see table 7-3). 7.4.2 Data Size and Data Alignment Data sizes for the CPU and other internal bus masters are byte, word, and longword. The bus controller has a data alignment function, and when accessing external space, controls whether the upper data bus (D15 to D8) or lower data bus (D7 to D0) is used according to the bus specifications for the area being accessed (8-bit access space or 16-bit access space) and the data size. 8-Bit Access Space: Figure 7-4 illustrates data alignment control for the 8-bit access space. With the 8-bit access space, the upper data bus (D15 to D8) is always used for accesses. The amount of data that can be accessed at one time is one byte: a word transfer instruction is performed as two byte accesses, and a longword transfer instruction, as four byte accesses. Upper data bus Lower data bus D15 D8 D7 D0 Byte size 1st bus cycle 2nd bus cycle 1st bus cycle Longword size 2nd bus cycle 3rd bus cycle 4th bus cycle Word size Figure 7-4 Access Sizes and Data Alignment Control (8-Bit Access Space) 193 16-Bit Access Space: Figure 7-5 illustrates data alignment control for the 16-bit access space. With the 16-bit access space, the upper data bus (D15 to D8) and lower data bus (D7 to D0) are used for accesses. The amount of data that can be accessed at one time is one byte or one word, and a longword transfer instruction is executed as two word transfer instructions. In byte access, whether the upper or lower data bus is used is determined by whether the address is even or odd. The upper data bus is used for an even address, and the lower data bus for an odd address. Lower data bus Upper data bus D15 D8 D7 D0 Byte size Byte size Word size Longword size 1st bus cycle 2nd bus cycle * Even address * Odd address Figure 7-5 Access Sizes and Data Alignment Control (16-Bit Access Space) 194 7.4.3 Valid Strobes Table 7-4 shows the data buses used and valid strobes for the access spaces. In a read, the RD signal is valid without discrimination between the upper and lower halves of the data bus. In a write, the HWR signal is valid for the upper half of the data bus, and the LWR signal for the lower half. Table 7-4 Area 8-bit access space Data Buses Used and Valid Strobes Access Read/ Size Write Byte Read Write Read Address -- -- Even Odd Write Even Odd Word Read Write -- -- HWR LWR RD Valid Strobe RD HWR RD Valid Invalid Valid Hi-Z Valid Upper Data Bus (D15 to D8) Valid Lower data bus (D7 to D0) Invalid Hi-Z Invalid Valid Hi-Z Valid Valid Valid 16-bit access Byte space HWR, LWR Valid Notes: Hi-Z: High impedance. Invalid: Input state; input value is ignored. 195 7.4.4 Basic Timing 8-Bit 2-State Access Space: Figure 7-6 shows the bus timing for an 8-bit 2-state access space. When an 8-bit access space is accessed, the upper half (D15 to D8) of the data bus is used. The LWR pin is fixed high. Wait states cannot be inserted. Bus cycle T1 o T2 Address bus CSn AS RD Read D15 to D8 Valid D7 to D0 Invalid HWR LWR Write D15 to D8 High Valid D7 to D0 High impedance Note: n = 0 to 7 Figure 7-6 Bus Timing for 8-Bit 2-State Access Space 196 8-Bit 3-State Access Space: Figure 7-7 shows the bus timing for an 8-bit 3-state access space. When an 8-bit access space is accessed, the upper half (D15 to D8) of the data bus is used. The LWR pin is fixed high. Wait states can be inserted. Bus cycle T1 o T2 T3 Address bus CSn AS RD Read D15 to D8 Valid D7 to D0 Invalid HWR LWR Write D15 to D8 High Valid High impedance D7 to D0 Note: n = 0 to 7 Figure 7-7 Bus Timing for 8-Bit 3-State Access Space 197 16-Bit 2-State Access Space: Figures 7-8 to 7-10 show bus timings for a 16-bit 2-state access space. When a 16-bit access space is accessed, the upper half (D15 to D8) of the data bus is used for the even address, and the lower half (D7 to D0) for the odd address. Wait states cannot be inserted. Bus cycle T1 o T2 Address bus CSn AS RD Read D15 to D8 Valid D7 to D0 Invalid HWR LWR Write D15 to D8 High Valid D7 to D0 High impedance Note: n = 0 to 7 Figure 7-8 Bus Timing for 16-Bit 2-State Access Space (1) (Even Address Byte Access) 198 Bus cycle T1 o T2 Address bus CSn AS RD Read D15 to D8 Invalid D7 to D0 Valid HWR High LWR Write D15 to D8 High impedance D7 to D0 Valid Note: n = 0 to 7 Figure 7-9 Bus Timing for 16-Bit 2-State Access Space (2) (Odd Address Byte Access) 199 Bus cycle T1 o T2 Address bus CSn AS RD Read D15 to D8 Valid D7 to D0 Valid HWR LWR Write D15 to D8 Valid D7 to D0 Valid Note: n = 0 to 7 Figure 7-10 Bus Timing for 16-Bit 2-State Access Space (3) (Word Access) 200 16-Bit 3-State Access Space: Figures 7-11 to 7-13 show bus timings for a 16-bit 3-state access space. When a 16-bit access space is accessed , the upper half (D15 to D8) of the data bus is used for the even address, and the lower half (D7 to D0) for the odd address. Wait states can be inserted. Bus cycle T1 o T2 T3 Address bus CSn AS RD Read D15 to D8 Valid D7 to D0 Invalid HWR LWR Write D15 to D8 High Valid High impedance D7 to D0 Note: n = 0 to 7 Figure 7-11 Bus Timing for 16-Bit 3-State Access Space (1) (Even Address Byte Access) 201 Bus cycle T1 o T2 T3 Address bus CSn AS RD Read D15 to D8 Invalid D7 to D0 Valid HWR High LWR Write D15 to D8 High impedance D7 to D0 Note: n = 0 to 7 Valid Figure 7-12 Bus Timing for 16-Bit 3-State Access Space (2) (Odd Address Byte Access) 202 Bus cycle T1 o T2 T3 Address bus CSn AS RD Read D15 to D8 Valid D7 to D0 Valid HWR LWR Write D15 to D8 Valid D7 to D0 Note: n = 0 to 7 Valid Figure 7-13 Bus Timing for 16-Bit 3-State Access Space (3) (Word Access) 203 7.4.5 Wait Control When accessing external space, the H8S/2633 Series can extend the bus cycle by inserting one or more wait states (Tw). There are two ways of inserting wait states: program wait insertion and pin wait insertion using the WAIT pin. Program Wait Insertion From 0 to 3 wait states can be inserted automatically between the T2 state and T3 state on an individual area basis in 3-state access space, according to the settings of WCRH and WCRL. Pin Wait Insertion Setting the WAITE bit in BCRL to 1 enables wait insertion by means of the WAIT pin. Program wait insertion is first carried out according to the settings in WCRH and WCRL. Then, if the WAIT pin is low at the falling edge of o in the last T2 or Tw state, a Tw state is inserted. If the WAIT pin is held low, Tw states are inserted until it goes high. This is useful when inserting four or more Tw states, or when changing the number of Tw states for different external devices. The WAITE bit setting applies to all areas. 204 Figure 7-14 shows an example of wait state insertion timing. By program wait T1 o T2 Tw By WAIT pin Tw Tw T3 WAIT Address bus AS RD Read Data bus Read data HWR, LWR Write Data bus Write data Note: indicates the timing of WAIT pin sampling. Figure 7-14 Example of Wait State Insertion Timing The settings after a power-on reset are: 3-state access, 3 program wait state insertion, and WAIT input disabled. At a manual reset, the bus control register values are retained and wait control continues as before the reset. 205 7.5 7.5.1 DRAM Interface (This function is not available in the H8S/2695) Overview This LSI allows area 2 to 5 external space to be set as DRAM space and DRAM interfacing to be performed. With the DRAM interface, DRAM can be directly connected to the LSI. BCRH RMTS2 to RMTS0 allow the setting up of 2, 4, or 8MB DRAM space. Burst operation is possible using high-speed page mode. 7.5.2 Setting up DRAM Space To set up areas 2 to 5 as DRAM space, set the RMTS2 to RMTS0 bits of BCRH. Table 7-5 shows the relationship between the settings of the RMTS2 to RMTS0 bits and DRAM space. You can select (1) one area (area 2), (2) two areas (areas 2 and 3), or (3) four areas (areas 2 to 5). Using 16 64M DRAMs requires a 4M word (8MB) contiguous space. Setting RMTS2 to RMTS0 to 1 allows areas 2 to 5 to be configured as one contiguous DRAM space. The RAS signal can be output from the CS2 pin, and CS3 to CS5 can be used as input ports. In this configuration, the bus widths are the same for areas 2 to 5. Table 7-5 RMTS2 0 RMTS2 to RMTS0 Settings vs DRAM Space RMTS1 0 1 RMTS0 1 0 1 Area 5 Normal space Normal space DRAM space Contiguous DRAM space Area 4 Normal space Normal space DRAM space Contiguous DRAM space Area 3 Normal space DRAM space DRAM space Contiguous DRAM space Area 2 DRAM space DRAM space DRAM space Contiguous DRAM space 1 1 1 206 7.5.3 Address Multiplexing In the case of DRAM space, the row address and column address are multiplexed. With address multiplexing, the MXC1 and MXC0 bits of the MCR select the amount of shift in the row address. Table 7-6 shows the relationship between MXC1 and MXC0 settings and the shift amount. Table 7-6 MXC1 and MXC0 Settings vs Address Multiplexing Address Pin A23 to A13 A12 A11 A10 A9 A8 A7 A6 A5 A4 A3 A2 A1 A0 A8 MCR Shift MXC1 MXC0 Amount Row 0 address 1 0 1 0 1 Column -- address -- 8 bits 9 bits 10 bits Do not set -- A23 to A13 A20 A19 A18 A17 A16 A15 A14 A13 A12 A11 A10 A9 A23 to A13 A12 A20 A19 A18 A17 A16 A15 A14 A13 A12 A11 A10 A9 A23 to A13 A12 A11 A20 A19 A18 A17 A16 A15 A14 A13 A12 A11 A10 -- -- -- -- -- -- A8 -- A7 -- A6 -- A5 -- A4 -- A3 -- A2 -- A1 -- A0 A23 to A13 A12 A11 A10 A9 7.5.4 Data Bus Setting the ABWCR bit of an area set as DRAM space to 1 sets the corresponding area as 8-bit DRAM space. Clearing the ABWCR bit to 0 sets the area as 16-bit DRAM. 16-bit DRAMs can be directly connected in the case of 16-bit DRAM space. With 8-bit DRAM space, the high data bus byte (D15 to D8) is valid. With 16-bit DRAM space, the high and low data bus bytes (D15 to D0) are valid. The access size and data alignment are the same as for the standard bus interface. See section 7.4.2, Data Size and Data Alignment for details. 207 7.5.5 DRAM Interface Pins Table 7-7 shows the pins used for the DRAM interface, and their functions. Table 7-7 Pin HWR LCAS CS2 CS3 CS4 CS5 CAS WAIT A12 to A0 D15 to D0 OE DRAM Interface Pin Configuration In DRAM Mode WE LCAS RAS2 RAS3 RAS4 RAS5 UCAS WAIT A12 to A0 D15 to D0 OE* Name Write enable Direction Output Function Write enable when accessing DRAM space in 2 CAS mode Lower column address strobe signal when accessing 16-bit DRAM space Row address strobe when area 2 set as DRAM space Row address strobe when area 3 set as DRAM space Row address strobe when area 4 set as DRAM space Row address strobe when area 5 set as DRAM space Upper column address strobe when accessing DRAM space Wait request signal Multiplexed output of row address and column address Lower column address Output strobe Row address strobe 2 Output Row address strobe 3 Output Row address strobe 4 Output Row address strobe 5 Output Upper column address Output strobe Wait Address pin Data pin Output enable pin Input Output Input/output Data input/output pin Output Output enable signal when accessing DRAM space in read mode Note: * Valid when OES bit set to 1. 7.5.6 Basic Timing Figure 7-15 shows the basic access timing for DRAM space. There are four basic DRAM timing states. In contrast to the standard bus interface, the corresponding ASTCR bit only controls the enabling/disabling of wait insertion and has no effect on the number of access states. When the corresponding ASTCR bit is cleared to 0, no wait states can be inserted in the DRAM access cycle. The four basic timing states are as follows: TP (precharge cycle) 1 state, Tr (row address output cycle) 1 state, Tc1 and T c2 (column address output cycle) two states. 208 When RCTS is set to 1, the CAS signal timing differs when reading and writing, being asserted cycle earlier when reading. Tp o A23 to A0 AS row column Tr Tc1 Tc2 CSn (RAS) RCTS= 0 CAS, LCAS RCTS= 1 HWR (WE) Read RD D15 toD0 CAS, LCAS HWR (WE) Write RD D15 to D0 Note: n=2 to 5 Figure 7-15 Basic Access Timing 209 7.5.7 Precharge State Control When accessing DRAM, it is essential to secure a time for RAS precharging. In this LSI, it is therefore necessary to insert 1 T P state when accessing DRAM space. By setting the TPC bit of the MCR to 1, TP can be changed from 1 state to 2 states. Set the appropriate number of TP cycles according to the type of DRAM connected and the operation frequency of the LSI. Figure 7-16 shows the timing when TP is set for 2 states. Setting the TPC bit to 1 also sets the refresh cycle TP to 2 states. Tp1 Tp2 Tr Tc1 Tc2 o A23 to A0 row column CSn (RAS) RCTS= 0 CAS, LCAS RCTS= 1 Read HWR (WE) D15 to D0 CAS, LCAS Write HWR (WE) D15 to D0 Note: n= 2 to 5 Figure 7-16 Timing With Two Precharge Cycles 210 7.5.8 Wait Control There are two methods of inserting wait states in DRAM access: (1) insertion of program wait states, and (2) insertion of pin waits via WAIT pin. (1) Insertion of Program Wait States Setting the ASTCR bit of an area set for DRAM to 1 automatically inserts from 0 to 3 wait states, as set by WCRH and WCRL, between the Tc1 state and Tc2 state. When a program wait is inserted, the write wait function is activated and only the CAS signal is output only during the Tc2 state when writing. Figure 7-17 shows example timing for the insertion of program waits. Program waits Tp o Tr Tc1 Tw Tw Tc2 Address bus AS CSn (RAS) RCTS= 0 CAS, LCAS RCTS= 1 Read RD Data bus Read data CAS, LCAS Write HWR (WE) Data bus Note: shows timing for WAIT pin sampling. n= 2 to 5 Write data Figure 7-17 Example Program Wait Insertion Timing (Wait 2 State Insertion) 211 (2) Insertion of Pin Waits When the WAITE bit of BCRH is set to 1, wait input via the WAIT pin is valid regardless of the ASTCR AST bit. In this state, a program wait is inserted when the DRAM space is accessed. If the WAIT pin level is Low at the fall in o in the final Tc1 or Tw state, a further Tw is inserted. If the level of the WAIT pin is kept Low, Tw is inserted until the level of the WAIT pin changes to High. When wait states are inserted via the WAIT pin, the CAS when writing is output after the Tw state. Figure 7-18 shows example timing for the insertion of wait states via the WAIT pin. Program waits Tc1 Tw WAIT pin wait states Tw Tc2 Tp o Tr Address bus AS CSn (RAS) RCTS= 0 CAS, LCAS RCTS= 1 Read RD Data bus Read data CAS, LCAS Write HWR (WE) Data bus Note: shows timing for /WAIT pin sampling. n= 2 to 5 Write data Figure 7-18 Example Timing for Insertion of Wait States via WAIT Pin 212 7.5.9 Byte Access Control When 16-bit DRAMs are connected, the 2 CAS method can be used as the control signal required for byte access. Figure 7-19 shows the 2 CAS method control timing. Figure 7-20 shows an example of connecting DRAM in high-speed page mode. When all areas selected as DRAM space are set as 8-bit space, the LCAS pin functions as an I/O port. Tp Tr Tc1 Tc2 o A23 to A0 row column CSn (RAS) CAS Byte control LCAS HWR (WE) Note: n= 2 to 5 Figure 7-19 2 CAS Method Control Timing (For High Byte Write Access) When using DRAM EDO page mode, either use OE to control the read data or, as shown in figure 7-20, select RAS up mode. Figure 7-21 is an example of DRAM connection in EDO page mode when OES=1. 213 This LSI (address shift set to 9 bits) 2CAS 4-Mbit DRAM 256KB x 16-bit configuration 9-bit column address RAS UCAS LCAS WE A8 A7 A6 A4 A3 A2 A1 A0 D15 to D0 (Row address input: A8 to A0) CS (RAS) CAS LCAS HWR (WE) A9 A8 A7 A6 A5 A4 A3 A2 A1 D15 to D0 A5 (Column address input: A8 to A0) OE Figure 7-20 High-speed Page Mode DRAM 214 This LSI (address shift set to 10 bits) 2CAS 16-Mbit DRAM 1MB x 16-bit configuration 10-bit column address RAS UCAS LCAS WE A9 A8 A7 A6 (Row address input: A9 to A0) A5 (Column address input: A9 to A0) A4 A3 A2 A1 A0 D15 to D0 OE CS2 (RAS) CAS LCAS HWR (WE) A10 A9 A8 A7 A6 A5 A4 A3 A2 A1 CS3 (OE) D15 to D0 Figure 7-21 Example Connection of EDO Page Mode DRAM (OES=1) 7.5.10 Burst Operation In addition to full DRAM access (normal DRAM access), in which the row address is output each time the data in DRAM is accessed, there is also a high-speed page mode that allows high-speed access (burst access). In this method, if the same row address is accessed successively, the row address is output once and then only the column address is changed. Burst access is selected by setting the BE bit of the MCR to 1. 215 (1) Operation Timing for Burst Access (High-Speed Page Mode) Figure 7-22 shows the operation timing for burst access. When the DRAM space is successively accessed, the CAS signal and column address output cycle (2 states) are continued as long as the row address is the same in the preceding and succeeding access cycles. The MXC1 and MXC0 bits of the MCR specify which row address is compared. Tp o A23 to A0 AS CSn (RAS) RCTS= 0 CAS, LCAS RCTS= 1 HWR (WE) row column1 column2 Tr Tc1 Tc2 Tc1 Tc2 Read OE* D15 to D0 CAS, LCAS HWR (WE) Write OE D15 to D0 Notes: n=2 to 5 * OE is enabled when OES=1. Figure 7-22 Operating Timing in High-Speed Page Mode The bus cycle can also be extended in burst access by inserting wait states. The method and timing of inserting the wait states is the same as in full access. For details, see section 7.5.8, Wait Control. 216 (2) RAS Down Mode and RAS Up Mode Even when burst operation is selected, DRAM access may not be continuous, but may be interrupted by accessing another area. In this case, burst operation can be continued by keeping the RAS signal level Low while the other area is accessed and then accessing the same row address in the DRAM space. * RAS down mode To select RAS down mode, set the RCDM bit of the MCR to 1. When DRAM access is interrupted and another area accessed, the RAS signal level is kept Low and, if the row address is the same as previously when the DRAM space is again accessed, burst access is continued. Figure 7-23 shows example RAS down mode timing. Note that if the refresh operation occurs when RAS is down, the RAS signal level changes to High. DRAM read access Tp o A23 to A0 Tr Tc1 Tc2 External space read access T1 T2 DRAM write access Tc1 Tc2 RD HWR (WE) CSn (RAS) RCTS= 0 CAS, LCAS RCTS= 1 OE* D15 to D0 Notes: n=2 to 5 * OE is enabled when OES=1. Figure 7-23 Example Operation Timing in RAS Down Mode 217 * RAS up mode To select RAS up mode, clear the RCDM bit of the MCR to 0. If DRAM access is interrupted to access another area, the RAS signal level returns to High. Burst operation is only possible when the DRAM space is contiguous. Figure 7-24 shows example timing in RAS up mode. Note that the RAS signal level does not return to High in burst ROM space access. DRAM write access Tr Tc1 DRAM read access Tc1 Tc2 External space write access T1 T2 Tp o Tc2 A23 to A0 RD HWR (WE) CSn (RAS) CAS, LCAS D15 to D0 Note: n= 2 to 5 Figure 7-24 Example Operation Timing in RAS Up Mode 218 7.5.11 Refresh Control This LSI has a DRAM refresh control function. There are two refresh methods: (1) CAS-beforeRAS (CBR) and (2), self refresh. (1) CAS-Before-RAS (CBR) Refresh To select CBR refresh, set the RFSHE bit of DRAMCR to 1 and clear the RMODE bit to 0. In CBR refresh, the input clock selected with the CKS2 to CKS0 bits of DRAMCR are used for the RTCNT count-up. Refresh control is performed when the count reaches the value set in RTCOR (compare match). The RTCNT is then reset and the count again started from H'00. That is, the refresh is repeated at the set interval determined by RTCOR and CKS2 to CKS0. Set RTCOR and CKS2 to CKS0 to satisfy the refresh cycle for the DRAM being used. The RTCNT count up starts when the CKS2 to CKS0 bits are set. The RTCNT and RTCOR values should therefore be set before setting CKS2 to CKS0. When a value is set in RTCOR, RTCNT is cleared. When RTCNT is set at the same time that it is reset by a compare match, the value written to RTCNT takes precedence. When performing refresh control (RFSHE=1), do not clear the CMF flag. Figure 7-25 shows RTCNT operation. Figure 7-26 shows compare match timing. And figure 7-27 show CBR refresh timing. Some types of DRAM do not allow the WE signal to be changed during the refresh cycle. In this case, set CBRM to 1. Figure 7-28 shows the timing. The CS signal is not controlled and a Low level is output when an access request occurs. Note that other normal spaces are accessed during the CBR refresh cycle. RTCNT RTCOR H'00 Refresh request Figure 7-25 RTCNT Operation 219 o RTCNT N H'00 RTCOR N Refresh request signal and CMF bit setting signal Figure 7-26 Compare Match Timing Read access of normal space Write access of normal space o A23 to A0 CS AS RD HWR (WE) Refresh cycle RAS CAS Figure 7-27 Example CBR Refresh Timing (CBRM=0) 220 Normal space access request o A23 to A0 CS AS RD HWR (WE) Refresh cycle RAS CAS Figure 7-28 Example CBR Refresh Timing (CBRM=1) 221 (2) Self-Refresh One of the DRAM standby modes is the self-refresh mode (battery backup mode), in which the DRAM generates its own refresh timing and refresh address. To select self-refresh, set the RFSHE bit and RMODE bits of the DRAMCR to 1. Next, execute a SLEEP instruction to make a transition to software standby mode. As shown in figure 7-29, the CAS and RAS signals are output and the DRAM enters self-refresh mode. When you exit software standby mode, the RMODE bit is cleared to 0 and self-refresh mode is exited. When making a transition to software standby mode, self-refresh mode starts after a CBR refresh, providing there is a CBR refresh request. CBR refresh requests occurring immediately before entering software standby mode are cleared on completion of the self-refresh when the software standby mode is exited. Software standby TRp o TRcr TRc3 CSn (RAS) CAS, LCAS HWR (WE) High level Note: n= 2 to 5 Figure 7-29 Self-Refresh Timing 222 7.6 DMAC Single Address Mode and DRAM Interface (This function is not available in the H8S/2695) When burst mode is set for the DRAM interface, the DDS bit selects the output timing for the DACK signal. It also selects whether or not to perform burst access when accessing the DRAM space in DMAC single address mode. 7.6.1 DDS=1 Burst access is performed on the basis of the address only, regardless of the bus master. The DACK output level changes to Low afer the Tc1 state in the case of the DRAM interface. Figure 7-30 shows the DACK output timing for the DRAM interface when DDS=1. Tp Tr Tc1 Tc2 o A23 to A0 row column CSn (RAS) CAS (UCAS) LCAS (LCAS) Read HWR (WE) RCTS= 0 RCTS= 1 D15 to D0 CAS (UCAS) LCAS (LCAS) Write HWR (WE) D15 to D0 DACK Note: n = 2 to 5 Figure 7-30 DACK Output Timing when DDS=1 (Example Showing DRAM Access) 223 7.6.2 DDS=0 When the DRAM space is accessed in DMAC single address mode, always perform full access (normal access). The DACK output level changes to Low afer the Tr state in the case of the DRAM interface. In other than DMAC signle address mode, burst access is possible when the DRAM space is accessed. Figure 7-31 shows the DACK output timing for the DRAM interface when DDS=0. Tp Tr Tc1 Tc2 o A23 to A0 row column CSn (RAS) CAS (UCAS) LCAS (LCAS) RCTS= 1 RCTS= 0 Read HWR (WE) D15 to D0 CAS (UCAS) LCAS (LCAS) Write HWR (WE) D15 to D0 DACK Note: n = 2 to 5 Figure 7-31 DACK Output Timing when DDS=0 (Example Showing DRAM Access) 224 7.7 7.7.1 Burst ROM Interface Overview In this LSI, the area 0 external space can be set as burst ROM space and burst ROM interfacing performed. Burst ROM space interfacing allows 16-bit ROM capable of burst access to be accessed at high-speed. The BRSTRM bit of BCRH sets area 0 as burst ROM space. CPU instruction fetches (only) can be performed using a maximum of 4-word or 8-word continuous burst access. 1 state or 2 states can be selected in the case of burst access. 7.7.2 Basic Timing The AST0 bit of ASTCR sets the number of access states in the initial cycle (full access) of the burst ROM interface. Wait states can be inserted when the AST0 bit is set to 1. The burst cycle can be set for 1 state or 2 sttes by setting the BRSTS1 bit of BCRH. Wait states cannot be inserted. When area 0 is set as burst ROM space, area 0 is a 16-bit access space regardless of the ABW0 bit of ABWCR. When the BRSTS0 bit of BCRH is cleared to 0, 4-word max. burst access is performed. When the BRSTS0 bit is set to 1, 8-word max. burst access is performed. Figure 7-32 (a) and (b) shows the basic access timing for the burst ROM space. Figure 7-32 (a) is an example when both the AST0 and BRSTS1 bits are set to 1. Figure 7-32 (b) is an example when both the AST0 and BRSTS1 bits are set to 0. 225 Full access T1 o T2 T3 T1 Burst access T2 T1 T2 Address bus Low address only changes CS0 AS RD Data bus Read data Read data Read data Figure 7-32 (a) Example Burst ROM Access Timing (AST0=BRSTS1=1) 226 Full access T1 T2 Burst access T1 T1 o Address bus Low address only changes CS0 AS RD Data bus Read data Read data Read data Figure 7-32 (b) Example Burst ROM Access Timing (AST0=BRSTS1=0) 7.7.3 Wait Control As with the basic bus interface, either program wait insertion or pin wait insertion using the WAIT pin can be used in the initial cycle (full access) of the burst ROM interface. See section 7.4.5, Wait Control. Wait states cannot be inserted in the burst cycle. 227 7.8 7.8.1 Idle Cycle Operation When the H8S/2633 Series accesses external space, it can insert a 1-state idle cycle (TI) between bus cycles in the following two cases: (1) when read accesses between different areas occur consecutively, and (2) when a write cycle occurs immediately after a read cycle. By inserting an idle cycle it is possible, for example, to avoid data collisions between ROM, with a long output floating time, and high-speed memory, I/O interfaces, and so on. (1) Consecutive Reads between Different Areas If consecutive reads between different areas occur while the ICIS1 bit in BCRH is set to 1, an idle cycle is inserted at the start of the second read cycle. Figure 7-33 shows an example of the operation in this case. In this example, bus cycle A is a read cycle from ROM with a long output floating time, and bus cycle B is a read cycle from SRAM, each being located in a different area. In (a), an idle cycle is not inserted, and a collision occurs in cycle B between the read data from ROM and that from SRAM. In (b), an idle cycle is inserted, and a data collision is prevented. Bus cycle A T1 o Address bus CS (area A) CS (area B) RD Data bus T2 T3 Bus cycle B T1 T2 o Address bus CS (area A) Bus cycle A T1 T2 T3 Bus cycle B TI T1 T2 , CS (area B) RD Data bus Data collision (b) Idle cycle inserted (Initial value ICIS1 = 1) Long output floating time (a) Idle cycle not inserted (ICIS1 = 0) Figure 7-33 Example of Idle Cycle Operation (1) 228 (2) Write after Read If an external write occurs after an external read while the ICIS0 bit in BCRH is set to 1, an idle cycle is inserted at the start of the write cycle. Figure 7-34 shows an example of the operation in this case. In this example, bus cycle A is a read cycle from ROM with a long output floating time, and bus cycle B is a CPU write cycle. In (a), an idle cycle is not inserted, and a collision occurs in cycle B between the read data from ROM and the CPU write data. In (b), an idle cycle is inserted, and a data collision is prevented. Bus cycle A T1 o Address bus CS (area A) CS (area B) RD T2 T3 Bus cycle B T1 T2 o Address bus CS (area A) CS (area B) RD Bus cycle A T1 T2 T3 Bus cycle B TI T1 T2 Possibility of overlap between CS (area B) and RD (a) Idle cycle not inserted (ICIS1 = 0) (b) Idle cycle inserted (Initial value ICIS1 = 1) Figure 7-34 Example of Idle Cycle Operation (2) 229 (3) Relationship between Chip Select (CS) Signal and Read (RD) Signal Depending on the system's load conditions, the RD signal may lag behind the CS signal. An example is shown in figure 7-35. In this case, with the setting for no idle cycle insertion (a), there may be a period of overlap between the bus cycle A RD signal and the bus cycle B CS signal. Setting idle cycle insertion, as in (b), however, will prevent any overlap between the RD and CS signals. In the initial state after reset release, idle cycle insertion (b) is set. Bus cycle A T1 o Address bus CS (area A) CS (area B) RD HWR Data bus Data collision (b) Idle cycle inserted (Initial value ICIS1 = 1) T2 T3 Bus cycle B T1 T2 o Address bus CS (area A) CS (area B) RD HWR Data bus Bus cycle A T1 T2 T3 Bus cycle B TI T1 T2 Long output floating time (a) Idle cycle not inserted (ICIS1 = 0) Figure 7-35 Relationship between Chip Select (CS) and Read (RD) 230 (4) Notes The setting of the ICIS0 and ICIS1 bits is invalid when accessing the DRAM space. For example, if the 2nd of successive reads of different areas is a DRAM access, only the TP cycle is inserted, not the T1 cycle. Figure 7-36 shows the timing. Note, however, that ICIS0 and ICIS1 settings are valid in burst access in RAS down mode, and an idle cycle is inserted. Figure 7-37 (a) and (b) shows the timing. External read T1 o Address bus RD Data bus T2 T3 Tp DRAM space read Tr Tc1 Tc2 Figure 7-36 Example of DRAM Access after External Read DRAM space read Tp EXTAL Address RD RAS CAS, LCAS Data bus Tr Tc1 Tc2 T1 External read T1 T2 T3 DRAM space read Tc1 Tc1 Tc2 Idle cycle Figure 7-37 (a) Example Idle Cycle Operation in RAS Down Mode (ICIS1=1) 231 DRAM space read Tp EXTAL Address RD HWR RAS CAS, LCAS Data bus Tr Tc1 Tc2 T1 External read T1 T2 T3 DRAM space read Tc1 Tc1 Tc2 Idle cycle Figure 7-37 (b) Example Idle Cycle Operation in RAS Down Mode (ICIS0=1) 7.8.2 Pin States in Idle Cycle Table 7-8 shows pin states in an idle cycle. Table 7-8 Pins A23 to A0 D15 to D0 CSn CAS AS RD HWR LWR DACKn Pin States in Idle Cycle Pin State Contents of next bus cycle High impedance High* High High High High High High Note: * Remains low in DRAM space RAS down mode or a refresh cycle. 232 7.9 Write Data Buffer Function The H8S/2633 Series has a write data buffer function in the external data bus. Using the write data buffer function enables external writes and DMA single address mode transmission to be executed in parallel with internal accesses. The write data buffer function is made available by setting the WDBE bit in BCRL to 1. Figure 7-38 shows an example of the timing when the write data buffer function is used. When this function is used, if an external write and DMA single address mode transmission continues for 2 states or longer, and there is an internal access next, only an external write is executed in the first state, but from the next state onward an internal access (on-chip memory or internal I/O register read/write) is executed in parallel with the external write rather than waiting until it ends. On-chip memory read Internal I/O register read External write cycle T1 T2 TW TW T3 Internal address bus Internal memory Internal read signal Internal I/O register address A23 to A0 External address External space write CSn HWR, LWR D15 to D0 Figure 7-38 Example of Timing when Write Data Buffer Function is Used 233 7.10 7.10.1 Bus Release Overview The H8S/2633 Series can release the external bus in response to a bus request from an external device. In the external bus released state, the internal bus master continues to operate as long as there is no external access. If an internal bus master wants to make an external access and when a refresh request occurs in the external bus released state, it can issue a bus request off-chip. 7.10.2 Operation In external expansion mode, the bus can be released to an external device by setting the BRLE bit in BCRL to 1. Driving the BREQ pin low issues an external bus request to the H8S/2633 Series. When the BREQ pin is sampled, at the prescribed timing the BACK pin is driven low, and the address bus, data bus, and bus control signals are placed in the high-impedance state, establishing the external bus-released state. In the external bus released state, an internal bus master can perform accesses using the internal bus. When an internal bus master wants to make an external access, it temporarily defers activation of the bus cycle, and waits for the bus request from the external bus master to be dropped. Also, when a refresh request occurs in the external bus released state, refresh control is deferred until the external bus master drops the bus request. If the BREQOE bit in BCRL is set to 1, when an internal bus master wants to make an external access and when a refresh request occurs in the external bus released state, the BREQO pin is driven low and a request can be made off-chip to drop the bus request. When the BREQ pin is driven high, the BACK pin is driven high at the prescribed timing and the external bus released state is terminated. The following shows the order of priority when an external bus release request, refresh request, and external access by the internal bus master occur simultaneously: When CBRM=1 (High) Refresh > External bus release > External access by internal bus master (Low) When CBRM=0 (High) Refresh > External bus release (Low) (High) External bus release > External access by internal bus master (Low) Note: A refresh can be executed at the same time as external access by the internal bus master. 234 7.10.3 Pin States in External Bus Released State Table 7-9 shows pin states in the external bus released state. Table 7-9 Pins A23 to A0 D15 to D0 CSn CAS AS RD HWR LWR DACKn Pin States in Bus Released State Pin State High impedance High impedance High impedance High impedance High impedance High impedance High impedance High impedance High 235 7.10.4 Transition Timing Figure 7-39 shows the timing for transition to the bus-released state. CPU cycle CPU cycle T0 T1 T2 External bus released state o High impedance Address bus Address High impedance High impedance CSn High impedance AS High impedance RD High impedance Data bus HWR, LWR BREQ BACK BREQO* Minimum 1 state [1] [1] [2] [3] [4] [5] [6] [2] [3] [4] [5] [6] Low level of BREQ pin is sampled at rise of T2 state. BACK pin is driven low at end of CPU read cycle, releasing bus to external bus master. BREQ pin state is still sampled in external bus released state. High level of BREQ pin is sampled. BACK pin is driven high, ending bus release cycle. BREQO signal goes high 1.5 clocks after BACK signal goes high. Note: * Output only when BREQOE is set to 1. Figure 7-39 Bus-Released State Transition Timing 236 DRAM space read access External bus released o A23 to A0 CS AS RD RAS CAS BREQ BACK Figure 7-40 Example Bus Release Transition Timing After DRAM Access (Reading DRAM) 7.10.5 Notes The external bus release function is deactivated when MSTPCR is set to H'FFFFFF or H'EFFFFF and a transition is made to sleep mode. To use the external bus release function in sleep mode, do not set MSTPCR to H'FFFFFF and H'EFFFFF. When the CBRM bit is set to 1 to use the CBR refresh function, set the BREQ=1 width greater than the number of the slowest external access states. Otherwise, CBR refresh requests from the refresh timer may not be performed. 237 7.11 Bus Arbitration (DMAC and DTC functions are not available in the H8S/2695) Overview 7.11.1 The H8S/2633 Series has a bus arbiter that arbitrates bus master operations. There are two bus masters, the CPU, DTC, and DMAC which perform read/write operations when they have possession of the bus. Each bus master requests the bus by means of a bus request signal. The bus arbiter determines priorities at the prescribed timing, and permits use of the bus by means of a bus request acknowledge signal. The selected bus master then takes possession of the bus and begins its operation. 7.11.2 Operation The bus arbiter detects the bus masters' bus request signals, and if the bus is requested, sends a bus request acknowledge signal to the bus master making the request. If there are bus requests from more than one bus master, the bus request acknowledge signal is sent to the one with the highest priority. When a bus master receives the bus request acknowledge signal, it takes possession of the bus until that signal is canceled. The order of priority of the bus masters is as follows: (High) DMAC > DTC > CPU (Low) An internal bus access by an internal bus master, external bus release, and refresh can be executed in parallel. In the event of simultaneous external bus release request, refresh request, and internal bus master external access request generation, the order of priority is as follows: When CBRM=1 (High) Refresh > External bus release > External access by internal bus master (Low) When CBRM=0 (High) Refresh > External bus release (Low) (High) External bus release > External access by internal bus master (Low) 238 7.11.3 Bus Transfer Timing Even if a bus request is received from a bus master with a higher priority than that of the bus master that has acquired the bus and is currently operating, the bus is not necessarily transferred immediately. There are specific times at which each bus master can relinquish the bus. CPU: The CPU is the lowest-priority bus master, and if a bus request is received from the DTC and DMAC, the bus arbiter transfers the bus to the bus master that issued the request. The timing for transfer of the bus is as follows: * The bus is transferred at a break between bus cycles. However, if a bus cycle is executed in discrete operations, as in the case of a longword-size access, the bus is not transferred between the operations. See Appendix A.5, Bus States During Instruction Execution, for timings at which the bus is not transferred. * If the CPU is in sleep mode, it transfers the bus immediately. DTC: The DTC sends the bus arbiter a request for the bus when an activation request is generated. The DTC can release the bus after a vector read, a register information read (3 states), a single data transfer, or a register information write (3 states). It does not release the bus during a register information read (3 states), a single data transfer, or a register information write (3 states). DMAC: When a start request occurs, the DMAC requests the bus arbiter for bus privileges. The DMAC releases bus privileges on completion of one transmission in short address mode, normal mode external requests, and cycle steal mode. The DMAC releases the bus on completion of the transmission of one block in block transmission mode, or after a transmission in burst mode. 7.12 Resets and the Bus Controller In a power-on reset, the H8S/2633 Series, including the bus controller, enters the reset state at that point, and an executing bus cycle is discontinued. The bus controller registers and internal states are retained at a manual reset. The current external bus cycle is executed to completion. The WAIT input is ignored. Write data is not retained. Also, because the DMAC* is initialized at a manual reset, DACK* and TEND* outputs are disabled and function as I/O ports controlled by DDR and DR. Note: * This function is not available in the H8S/2695. 239 240 Section 8 DMA Controller (DMAC) (This function is not available in the H8S/2695) 8.1 Overview The H8S/2633 Series has a built-in DMA controller (DMAC) which can carry out data transfer on up to 4 channels. 8.1.1 Features The features of the DMAC are listed below. * Choice of short address mode or full address mode Short address mode Maximum of 4 channels can be used Choice of dual address mode or single address mode In dual address mode, one of the two addresses, transfer source and transfer destination, is specified as 24 bits and the other as16 bits In single address mode, transfer source or transfer destination address only is specified as 24 bits In single address mode, transfer can be performed in one bus cycle Choice of sequential mode, idle mode, or repeat mode for dual address mode and single address mode Full address mode Maximum of 2 channels can be used Transfer source and transfer destination address specified as 24 bits Choice of normal mode or block transfer mode * 16-Mbyte address space can be specified directly * Byte or word can be set as the transfer unit * Activation sources: internal interrupt, external request, auto-request (depending on transfer mode) Six 16-bit timer-pulse unit (TPU) compare match/input capture interrupts Serial communication interface (SCI0, SCI1) transmit-data-empty interrupt, reception complete interrupt A/D converter conversion end interrupt External request Auto-request 241 * Module stop mode can be set The initial setting enables DMAC registers to be accessed. DMAC operation is halted by setting module stop mode 8.1.2 Block Diagram A block diagram of the DMAC is shown in figure 8-1. Internal address bus Internal interrupts TGI0A TGI1A TGI2A TGI3A TGI4A TGI5A TXI0 RXI0 TXI1 RXI1 ADI External pins DREQ0 DREQ1 TEND0 TEND1 DACK0 DACK1 Interrupt signals DEND0A DEND0B DEND1A DEND1B Address buffer Processor Channel 1B Channel 1A Channel 0B Channel 0A MAR0A ETCR0A MAR0B IOAR0B ETCR0B MAR1A IOAR1A ETCR1A MAR1B IOAR1B ETCR1B Module data bus IOAR0A Control logic DMAWER DMATCR DMACR0A DMACR0B DMACR1A DMACR1B DMABCR Data buffer Channel 1 Internal data bus Legend DMAWER DMATCR DMABCR DMACR MAR IOAR ETCR : DMA write enable register : DMA terminal control register : DMA band control register (for all channels) : DMA control register : Memory address register : I/O address register : Executive transfer counter register Figure 8-1 Block Diagram of DMAC 242 Channel 0 8.1.3 Overview of Functions Tables 8-1 (1) and (2) summarize DMAC functions in short address mode and full address mode, respectively. Table 8-1 (1) Overview of DMAC Functions (Short Address Mode) Address Register Bit Length Transfer Mode Dual address mode * Sequential mode 1-byte or 1-word transfer executed for one transfer request Memory address incremented/decremented by 1 or 2 1 to 65536 transfers * Idle mode 1-byte or 1-word transfer executed for one transfer request Memory address fixed 1 to 65536 transfers * Repeat mode 1-byte or 1-word transfer executed for one transfer request Memory address incremented/ decremented by 1 or 2 After specified number of transfers (1 to 256), initial state is restored and operation continues Single address mode * * * 1-byte or 1-word transfer executed for one transfer request Transfer in 1 bus cycle using DACK pin in place of address specifying I/O Specifiable for sequential, idle, and repeat modes * External request 24/DACK DACK/24 * * * Transfer Source * TPU channel 0 to 5 compare match/input capture A interrupt SCI transmit-dataempty interrupt SCI reception complete interrupt A/D converter conversion end interrupt External request Source 24/16 Destination 16/24 * 243 Table 8-1 (2) Overview of DMAC Functions (Full Address Mode) Address Register Bit Length Transfer Mode * Normal mode Auto-request Transfer request retained internally Transfers continue for the specified number of times (1 to 65536) Choice of burst or cycle steal transfer External request 1-byte or 1-word transfer executed for one transfer request 1 to 65536 transfers * Block transfer mode Specified block size transfer executed for one transfer request 1 to 65536 transfers Either source or destination specifiable as block area Block size: 1 to 256 bytes or words Transfer Source * Auto-request Source 24 Destination 24 * External request * TPU channel 0 to 24 5 compare match/input capture A interrupt SCI transmit-dataempty interrupt SCI reception complete interrupt External request A/D converter conversion end interrupt 24 * * * * 244 8.1.4 Pin Configuration Table 8-2 summarizes the DMAC pins. In short address mode, external request transfer, single address transfer, and transfer end output are not performed for channel A. The DMA transfer acknowledge function is used in channel B single address mode in short address mode. When the DREQ pin is used, do not designate the corresponding port for output. With regard to the DACK pins, setting single address transfer automatically sets the corresponding port to output, functioning as a DACK pin. With regard to the TEND pins, whether or not the corresponding port is used as a TEND pin can be specified by means of a register setting. Table 8-2 Channel 0 DMAC Pins Pin Name DMA request 0 DMA transfer acknowledge 0 DMA transfer end 0 Symbol DREQ0 DACK0 TEND0 DREQ1 DACK1 TEND1 I/O Input Output Output Input Output Output Function DMAC channel 0 external request DMAC channel 0 single address transfer acknowledge DMAC channel 0 transfer end DMAC channel 1 external request DMAC channel 1 single address transfer acknowledge DMAC channel 1 transfer end 1 DMA request 1 DMA transfer acknowledge 1 DMA transfer end 1 245 8.1.5 Register Configuration Table 8-3 summarizes the DMAC registers. Table 8-3 DMAC Registers Abbreviation R/W MAR0A IOAR0A ETCR0A MAR0B IOAR0B ETCR0B MAR1A IOAR1A ETCR1A MAR1B IOAR1B ETCR1B DMAWER R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W Initial Value Address* Bus Width 16 bits 16 bits 16 bits 16 bits 16 bits 16 bits 16 bits 16 bits 16 bits 16 bits 16 bits 16 bits 8 bits 8 bits 16 bits 16 bits 16 bits 16 bits 16 bits 8 bits Channel Name 0 Memory address register 0A I/O address register 0A Transfer count register 0A Memory address register 0B I/O address register 0B Transfer count register 0B 1 Memory address register 1A I/O address register 1A Transfer count register 1A Memory address register 1B I/O address register 1B Transfer count register 1B 0, 1 DMA write enable register Undefined H'FEE0 Undefined H'FEE4 Undefined H'FEE6 Undefined H'FEE8 Undefined H'FEEC Undefined H'FEEE Undefined H'FEF0 Undefined H'FEF4 Undefined H'FEF6 Undefined H'FEF8 Undefined H'FEFC Undefined H'FEFE H'00 H'00 H'00 H'00 H'00 H'00 H'0000 H'3F H'FF60 H'FF61 H'FF62 H'FF63 H'FF64 H'FF65 H'FF66 H'FDE8 DMA terminal control register DMATCR DMA control register 0A DMA control register 0B DMA control register 1A DMA control register 1B DMA band control register DMACR0A DMACR0B DMACR1A DMACR1B DMABCR Module stop control register A MSTPCRA Note: * Lower 16 bits of the address. 246 8.2 Register Descriptions (1) (Short Address Mode) Short address mode transfer can be performed for channels A and B independently. Short address mode transfer is specified for each channel by clearing the FAE bit in DMABCR to 0, as shown in table 8-4. Short address mode or full address mode can be selected for channels 1 and 0 independently by means of bits FAE1 and FAE0. Table 8-4 Short Address Mode and Full Address Mode (For 1 Channel: Example of Channel 0) FAE0 0 Description Short address mode specified (channels A and B operate independently) Channel 0A MAR0A IOAR0A ETCR0A DMACR0A MAR0B IOAR0B ETCR0B DMACR0B Specifies transfer source/transfer destination address Specifies transfer destination/transfer source address Specifies number of transfers Specifies transfer size, mode, activation source, etc. Channel 0B Specifies transfer source/transfer destination address Specifies transfer destination/transfer source address Specifies number of transfers Specifies transfer size, mode, activation source, etc. 1 Full address mode specified (channels A and B operate in combination) MAR0A MAR0B Channel 0 IOAR0A IOAR0B ETCR0A ETCR0B DMACR0A DMACR0B Specifies transfer source address Specifies transfer destination address Not used Not used Specifies number of transfers Specifies number of transfers (used in block transfer mode only) Specifies transfer size, mode, activation source, etc. 247 8.2.1 Bit MAR Memory Address Registers (MAR) : : 31 -- 0 -- 15 30 -- 0 -- 14 29 -- 0 -- 13 28 -- 0 -- 12 27 -- 0 -- 11 26 -- 0 -- 10 25 -- 0 -- 9 24 -- 0 * * * * * * * * 23 22 21 20 19 18 17 16 Initial value : R/W Bit MAR : : : -- R/W R/W R/W R/W R/W R/W R/W R/W 8 7 6 5 4 3 2 1 0 Initial value : R/W * * * * * * * * * * * * * * * * : R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W *: Undefined MAR is a 32-bit readable/writable register that specifies the transfer source address or destination address. The upper 8 bits of MAR are reserved: they are always read as 0, and cannot be modified. Whether MAR functions as the source address register or as the destination address register can be selected by means of the DTDIR bit in DMACR. MAR is incremented or decremented each time a byte or word transfer is executed, so that the address specified by MAR is constantly updated. For details, see section 8.2.4, DMA Control Register (DMACR). MAR is not initialized by a reset or in standby mode. 248 8.2.2 Bit IOAR I/O Address Register (IOAR) : : * * * * * * * * * * * * * * * * 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Initial value : R/W : R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W *: Undefined IOAR is a 16-bit readable/writable register that specifies the lower 16 bits of the transfer source address or destination address. The upper 8 bits of the transfer address are automatically set to H'FF. Whether IOAR functions as the source address register or as the destination address register can be selected by means of the DTDIR bit in DMACR. IOAR is invalid in single address mode. IOAR is not incremented or decremented each time a transfer is executed, so that the address specified by IOAR is fixed. IOAR is not initialized by a reset or in standby mode. 8.2.3 Execute Transfer Count Register (ETCR) ETCR is a 16-bit readable/writable register that specifies the number of transfers. The setting of this register is different for sequential mode and idle mode on the one hand, and for repeat mode on the other. (1) Sequential Mode and Idle Mode Transfer Counter Bit ETCR : : * * * * * * * * * * * * * * * * 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Initial value : R/W : R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W *: Undefined In sequential mode and idle mode, ETCR functions as a 16-bit transfer counter (with a count range of 1 to 65536). ETCR is decremented by 1 each time a transfer is performed, and when the count reaches H'0000, the DTE bit in DMABCR is cleared, and transfer ends. 249 (2) Repeat Mode Transfer Number Storage Bit ETCRH : : * R/W * R/W * R/W * R/W * R/W * R/W * R/W * R/W 15 14 13 12 11 10 9 8 Initial value : R/W : Transfer Counter Bit ETCRL : : * R/W * R/W * R/W * R/W * R/W * R/W * R/W * R/W *: Undefined 7 6 5 4 3 2 1 0 Initial value : R/W : In repeat mode, ETCR functions as transfer counter ETCRL (with a count range of 1 to 256) and transfer number storage register ETCRH. ETCRL is decremented by 1 each time a transfer is performed, and when the count reaches H'00, ETCRL is loaded with the value in ETCRH. At this point, MAR is automatically restored to the value it had when the count was started. The DTE bit in DMABCR is not cleared, and so transfers can be performed repeatedly until the DTE bit is cleared by the user. ETCR is not initialized by a reset or in standby mode. 8.2.4 Bit DMACR DMA Control Register (DMACR) : : 7 DTSZ 0 R/W 6 DTID 0 R/W 5 RPE 0 R/W 4 DTDIR 0 R/W 3 DTF3 0 R/W 2 DTF2 0 R/W 1 DTF1 0 R/W 0 DTF0 0 R/W Initial value : R/W : DMACR is an 8-bit readable/writable register that controls the operation of each DMAC channel. DMACR is initialized to H'00 by a reset, and in standby mode. 250 Bit 7--Data Transfer Size (DTSZ): Selects the size of data to be transferred at one time. Bit 7 DTSZ 0 1 Description Byte-size transfer Word-size transfer (Initial value) Bit 6--Data Transfer Increment/Decrement (DTID): Selects incrementing or decrementing of MAR every data transfer in sequential mode or repeat mode. In idle mode, MAR is neither incremented nor decremented. Bit 6 DTID 0 Description MAR is incremented after a data transfer * * 1 When DTSZ = 0, MAR is incremented by 1 after a transfer When DTSZ = 1, MAR is incremented by 2 after a transfer (Initial value) MAR is decremented after a data transfer * * When DTSZ = 0, MAR is decremented by 1 after a transfer When DTSZ = 1, MAR is decremented by 2 after a transfer Bit 5--Repeat Enable (RPE): Used in combination with the DTIE bit in DMABCR to select the mode (sequential, idle, or repeat) in which transfer is to be performed. Bit 5 RPE 0 DMABCR DTIE 0 1 1 0 1 Description Transfer in sequential mode (no transfer end interrupt) Transfer in sequential mode (with transfer end interrupt) Transfer in repeat mode (no transfer end interrupt) Transfer in idle mode (with transfer end interrupt) (Initial value) For details of operation in sequential, idle, and repeat mode, see section 8.5.2, Sequential Mode, section 8.5.3, Idle Mode, and section 8.5.4, Repeat Mode. Bit 4--Data Transfer Direction (DTDIR): Used in combination with the SAE bit in DMABCR to specify the data transfer direction (source or destination). The function of this bit is therefore different in dual address mode and single address mode. 251 DMABCR SAE 0 Bit 4 DTDIR 0 1 Description Transfer with MAR as source address and IOAR as destination address (Initial value) Transfer with IOAR as source address and MAR as destination address Transfer with MAR as source address and DACK pin as write strobe Transfer with DACK pin as read strobe and MAR as destination address 1 0 1 Bits 3 to 0--Data Transfer Factor (DTF3 to DTF0): These bits select the data transfer factor (activation source). There are some differences in activation sources for channel A and for channel B. Channel A Bit 3 DTF3 0 Bit 2 DTF2 0 Bit 1 DTF1 0 Bit 0 DTF0 0 1 1 0 1 1 0 0 1 1 0 1 1 0 0 0 1 1 0 1 1 0 0 1 1 0 1 Description -- (Initial value) Activated by A/D converter conversion end interrupt -- -- Activated by SCI channel 0 transmit-data-empty interrupt Activated by SCI channel 0 reception complete interrupt Activated by SCI channel 1 transmit-data-empty interrupt Activated by SCI channel 1 reception complete interrupt Activated by TPU channel 0 compare match/input capture A interrupt Activated by TPU channel 1 compare match/input capture A interrupt Activated by TPU channel 2 compare match/input capture A interrupt Activated by TPU channel 3 compare match/input capture A interrupt Activated by TPU channel 4 compare match/input capture A interrupt Activated by TPU channel 5 compare match/input capture A interrupt -- -- 252 Channel B Bit 3 DTF3 0 Bit 2 DTF2 0 Bit 1 DTF1 0 Bit 0 DTF0 0 1 1 0 1 1 0 0 1 1 0 1 1 0 0 0 1 1 0 1 1 0 0 1 1 0 1 Description -- (Initial value) Activated by A/D converter conversion end interrupt Activated by DREQ pin falling edge input* Activated by DREQ pin low-level input Activated by SCI channel 0 transmit-data-empty interrupt Activated by SCI channel 0 reception complete interrupt Activated by SCI channel 1 transmit-data-empty interrupt Activated by SCI channel 1 reception complete interrupt Activated by TPU channel 0 compare match/input capture A interrupt Activated by TPU channel 1 compare match/input capture A interrupt Activated by TPU channel 2 compare match/input capture A interrupt Activated by TPU channel 3 compare match/input capture A interrupt Activated by TPU channel 4 compare match/input capture A interrupt Activated by TPU channel 5 compare match/input capture A interrupt -- -- Note: * Detected as a low level in the first transfer after transfer is enabled. The same factor can be selected for more than one channel. In this case, activation starts with the highest-priority channel according to the relative channel priorities. For relative channel priorities, see section 8.5.13, DMAC Multi-Channel Operation. 253 8.2.5 Bit DMA Band Control Register (DMABCR) : 15 FAE1 0 R/W 7 DTE1B 0 R/W 14 FAE0 0 R/W 6 DTE1A 0 R/W 13 SAE1 0 R/W 5 DTE0B 0 R/W 12 SAE0 0 R/W 4 DTE0A 0 R/W 11 DTA1B 0 R/W 3 DTIE1B 0 R/W 10 DTA1A 0 R/W 2 DTIE1A 0 R/W 9 DTA0B 0 R/W 1 DTIE0B 0 R/W 8 DTA0A 0 R/W 0 DTIE0A 0 R/W DMABCRH : Initial value : R/W Bit : : DMABCRL : Initial value : R/W : DMABCR is a 16-bit readable/writable register that controls the operation of each DMAC channel. DMABCR is initialized to H'0000 by a reset, and in standby mode. Bit 15--Full Address Enable 1 (FAE1): Specifies whether channel 1 is to be used in short address mode or full address mode. In short address mode, channels 1A and 1B are used as independent channels. Bit 15 FAE1 0 1 Description Short address mode Full address mode (Initial value) Bit 14--Full Address Enable 0 (FAE0): Specifies whether channel 0 is to be used in short address mode or full address mode. In short address mode, channels 0A and 0B are used as independent channels. Bit 14 FAE0 0 1 Description Short address mode Full address mode (Initial value) 254 Bit 13--Single Address Enable 1 (SAE1): Specifies whether channel 1B is to be used for transfer in dual address mode or single address mode. Bit 13 SAE1 0 1 Description Transfer in dual address mode Transfer in single address mode (Initial value) This bit is invalid in full address mode. Bit 12--Single Address Enable 0 (SAE0): Specifies whether channel 0B is to be used for transfer in dual address mode or single address mode. Bit 12 SAE0 0 1 Description Transfer in dual address mode Transfer in single address mode (Initial value) This bit is invalid in full address mode. Bits 11 to 8--Data Transfer Acknowledge (DTA): These bits enable or disable clearing, when DMA transfer is performed, of the internal interrupt source selected by the data transfer factor setting. When DTE = 1 and DTA = 1, the internal interrupt source selected by the data transfer factor setting is cleared automatically by DMA transfer. When DTE = 1 and DTA = 1, the internal interrupt source selected by the data transfer factor setting does not issue an interrupt request to the CPU or DTC. When DTE = 1 and DTA = 0, the internal interrupt source selected by the data transfer factor setting is not cleared when a transfer is performed, and can issue an interrupt request to the CPU or DTC in parallel. In this case, the interrupt source should be cleared by the CPU or DTC transfer. When DTE = 0, the internal interrupt source selected by the data transfer factor setting issues an interrupt request to the CPU or DTC regardless of the DTA bit setting. Bit 11--Data Transfer Acknowledge 1B (DTA1B): Enables or disables clearing, when DMA transfer is performed, of the internal interrupt source selected by the channel 1B data transfer factor setting. 255 Bit 11 DTA1B 0 1 Description Clearing of selected internal interrupt source at time of DMA transfer is disabled (Initial value) Clearing of selected internal interrupt source at time of DMA transfer is enabled Bit 10--Data Transfer Acknowledge 1A (DTA1A): Enables or disables clearing, when DMA transfer is performed, of the internal interrupt source selected by the channel 1A data transfer factor setting. Bit 10 DTA1A 0 1 Description Clearing of selected internal interrupt source at time of DMA transfer is disabled (Initial value) Clearing of selected internal interrupt source at time of DMA transfer is enabled Bit 9--Data Transfer Acknowledge 0B (DTA0B): Enables or disables clearing, when DMA transfer is performed, of the internal interrupt source selected by the channel 0B data transfer factor setting. Bit 9 DTA0B 0 1 Description Clearing of selected internal interrupt source at time of DMA transfer is disabled (Initial value) Clearing of selected internal interrupt source at time of DMA transfer is enabled Bit 8--Data Transfer Acknowledge 0A (DTA0A): Enables or disables clearing, when DMA transfer is performed, of the internal interrupt source selected by the channel 0A data transfer factor setting. Bit 8 DTA0A 0 1 Description Clearing of selected internal interrupt source at time of DMA transfer is disabled (Initial value) Clearing of selected internal interrupt source at time of DMA transfer is enabled Bits 7 to 4--Data Transfer Enable (DTE): When DTE = 0, data transfer is disabled and the activation source selected by the data transfer factor setting is ignored. If the activation source is an internal interrupt, an interrupt request is issued to the CPU or DTC. If the DTIE bit is set to 1 256 when DTE = 0, the DMAC regards this as indicating the end of a transfer, and issues a transfer end interrupt request to the CPU or DTC. The conditions for the DTE bit being cleared to 0 are as follows: * When initialization is performed * When the specified number of transfers have been completed in a transfer mode other than repeat mode * When 0 is written to the DTE bit to forcibly abort the transfer, or for a similar reason When DTE = 1, data transfer is enabled and the DMAC waits for a request by the activation source selected by the data transfer factor setting. When a request is issued by the activation source, DMA transfer is executed. The condition for the DTE bit being set to 1 is as follows: * When 1 is written to the DTE bit after the DTE bit is read as 0 Bit 7--Data Transfer Enable 1B (DTE1B): Enables or disables data transfer on channel 1B. Bit 7 DTE1B 0 1 Description Data transfer disabled Data transfer enabled (Initial value) Bit 6--Data Transfer Enable 1A (DTE1A): Enables or disables data transfer on channel 1A. Bit 6 DTE1A 0 1 Description Data transfer disabled Data transfer enabled (Initial value) Bit 5--Data Transfer Enable 0B (DTE0B): Enables or disables data transfer on channel 0B. Bit 5 DTE0B 0 1 Description Data transfer disabled Data transfer enabled (Initial value) Bit 4--Data Transfer Enable 0A (DTE0A): Enables or disables data transfer on channel 0A. 257 Bit 4 DTE0A 0 1 Description Data transfer disabled Data transfer enabled (Initial value) Bits 3 to 0--Data Transfer End Interrupt Enable (DTIE): These bits enable or disable an interrupt to the CPU or DTC when transfer ends. If the DTIE bit is set to 1 when DTE = 0, the DMAC regards this as indicating the end of a transfer, and issues a transfer end interrupt request to the CPU or DTC. A transfer end interrupt can be canceled either by clearing the DTIE bit to 0 in the interrupt handling routine, or by performing processing to continue transfer by setting the transfer counter and address register again, and then setting the DTE bit to 1. Bit 3--Data Transfer End Interrupt Enable 1B (DTIE1B): Enables or disables the channel 1B transfer end interrupt. Bit 3 DTIE1B 0 1 Description Transfer end interrupt disabled Transfer end interrupt enabled (Initial value) Bit 2--Data Transfer End Interrupt Enable 1A (DTIE1A): Enables or disables the channel 1A transfer end interrupt. Bit 2 DTIE1A 0 1 Description Transfer end interrupt disabled Transfer end interrupt enabled (Initial value) Bit 1--Data Transfer End Interrupt Enable 0B (DTIE0B): Enables or disables the channel 0B transfer end interrupt. Bit 1 DTIE0B 0 1 Description Transfer end interrupt disabled Transfer end interrupt enabled (Initial value) Bit 0--Data Transfer End Interrupt Enable 0A (DTIE0A): Enables or disables the channel 0A transfer end interrupt. 258 Bit 0 DTIE0A 0 1 Description Transfer end interrupt disabled Transfer end interrupt enabled (Initial value) 8.3 Register Descriptions (2) (Full Address Mode) Full address mode transfer is performed with channels A and B together. For details of full address mode setting, see table 8-4. 8.3.1 Bit MAR Memory Address Register (MAR) : : 31 -- 0 -- 15 30 -- 0 -- 14 29 -- 0 -- 13 28 -- 0 -- 12 27 -- 0 -- 11 26 -- 0 -- 10 25 -- 0 -- 9 24 -- 0 * * * * * * * * 23 22 21 20 19 18 17 16 Initial value : R/W Bit MAR : : : -- R/W R/W R/W R/W R/W R/W R/W R/W 8 7 6 5 4 3 2 1 0 Initial value : R/W * * * * * * * * * * * * * * * * : R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W *: Undefined MAR is a 32-bit readable/writable register; MARA functions as the transfer source address register, and MARB as the destination address register. MAR is composed of two 16-bit registers, MARH and MARL. The upper 8 bits of MARH are reserved: they are always read as 0, and cannot be modified. MAR is incremented or decremented each time a byte or word transfer is executed, so that the source or destination memory address can be updated automatically. For details, see section 8.3.4, DMA Control Register (DMACR). MAR is not initialized by a reset or in standby mode. 8.3.2 I/O Address Register (IOAR) IOAR is not used in full address transfer. 259 8.3.3 Execute Transfer Count Register (ETCR) ETCR is a 16-bit readable/writable register that specifies the number of transfers. The function of this register is different in normal mode and in block transfer mode. ETCR is not initialized by a reset or in standby mode. (1) Normal Mode ETCRA Transfer Counter Bit ETCR : : * * * * * * * * * * * * * * * * 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Initial value : R/W : R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W *: Undefined In normal mode, ETCRA functions as a 16-bit transfer counter. ETCRA is decremented by 1 each time a transfer is performed, and transfer ends when the count reaches H'0000. ETCRB is not used at this time. ETCRB ETCRB is not used in normal mode. (2) Block Transfer Mode ETCRA Holds block size Bit ETCRAH : : * R/W * R/W * R/W * R/W * R/W * R/W * R/W * R/W 15 14 13 12 11 10 9 8 Initial value : R/W : Block size counter Bit ETCRAL : : * R/W * R/W * R/W * R/W * R/W * R/W * R/W * R/W *: Undefined 260 7 6 5 4 3 2 1 0 Initial value : R/W : ETCRB Block Transfer Counter Bit ETCRB : : * * * * * * * * * * * * * * * * 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Initial value : R/W : R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W In block transfer mode, ETCRAL functions as an 8-bit block size counter and ETCRAH holds the block size. ETCRAL is decremented each time a 1-byte or 1-word transfer is performed, and when the count reaches H'00, ETCRAL is loaded with the value in ETCRAH. So by setting the block size in ETCRAH and ETCRAL, it is possible to repeatedly transfer blocks consisting of any desired number of bytes or words. ETCRB functions in block transfer mode, as a 16-bit block transfer counter. ETCRB is decremented by 1 each time a block is transferred, and transfer ends when the count reaches H'0000. 8.3.4 DMA Control Register (DMACR) DMACR is a 16-bit readable/writable register that controls the operation of each DMAC channel. In full address mode, DMACRA and DMACRB have different functions. DMACR is initialized to H'0000 by a reset, and in standby mode. DMACRA Bit : 15 DTSZ 0 R/W 14 SAID 0 R/W 13 SAIDE 0 R/W 12 BLKDIR 0 R/W 11 BLKE 0 R/W 10 -- 0 R/W 9 -- 0 R/W 8 -- 0 R/W DMACRA : Initial value : R/W : DMACRB Bit : 7 -- 0 R/W 6 DAID 0 R/W 5 DAIDE 0 R/W 4 -- 0 R/W 3 DTF3 0 R/W 2 DTF2 0 R/W 1 DTF1 0 R/W 0 DTF0 0 R/W DMACRB : Initial value : R/W : 261 Bit 15--Data Transfer Size (DTSZ): Selects the size of data to be transferred at one time. Bit 15 DTSZ 0 1 Description Byte-size transfer Word-size transfer (Initial value) Bit 14--Source Address Increment/Decrement (SAID) Bit 13--Source Address Increment/Decrement Enable (SAIDE): These bits specify whether source address register MARA is to be incremented, decremented, or left unchanged, when data transfer is performed. Bit 14 SAID 0 Bit 13 SAIDE 0 1 Description MARA is fixed MARA is incremented after a data transfer * * 1 0 1 When DTSZ = 0, MARA is incremented by 1 after a transfer When DTSZ = 1, MARA is incremented by 2 after a transfer (Initial value) MARA is fixed MARA is decremented after a data transfer * * When DTSZ = 0, MARA is decremented by 1 after a transfer When DTSZ = 1, MARA is decremented by 2 after a transfer Bit 12--Block Direction (BLKDIR) Bit 11--Block Enable (BLKE): These bits specify whether normal mode or block transfer mode is to be used. If block transfer mode is specified, the BLKDIR bit specifies whether the source side or the destination side is to be the block area. Bit 12 BLKDIR 0 Bit 11 BLKE 0 1 1 0 1 Description Transfer in normal mode (Initial value) Transfer in block transfer mode, destination side is block area Transfer in normal mode Transfer in block transfer mode, source side is block area For operation in normal mode and block transfer mode, see section 8.5, Operation. 262 Bits 10 to 7--Reserved: Can be read or written to. Bit 6--Destination Address Increment/Decrement (DAID) Bit 5--Destination Address Increment/Decrement Enable (DAIDE): These bits specify whether destination address register MARB is to be incremented, decremented, or left unchanged, when data transfer is performed. Bit 6 DAID 0 Bit 5 DAIDE 0 1 Description MARB is fixed MARB is incremented after a data transfer * * 1 0 1 When DTSZ = 0, MARB is incremented by 1 after a transfer When DTSZ = 1, MARB is incremented by 2 after a transfer (Initial value) MARB is fixed MARB is decremented after a data transfer * * When DTSZ = 0, MARB is decremented by 1 after a transfer When DTSZ = 1, MARB is decremented by 2 after a transfer Bit 4--Reserved: Can be read or written to. Bits 3 to 0--Data Transfer Factor (DTF3 to DTF0): These bits select the data transfer factor (activation source). The factors that can be specified differ between normal mode and block transfer mode. * Normal Mode Bit 3 DTF3 0 Bit 2 DTF2 0 Bit 1 DTF1 0 Bit 0 DTF0 0 1 1 0 1 1 0 1 * 0 1 1 * * * Description -- -- Activated by DREQ pin falling edge input Activated by DREQ pin low-level input -- Auto-request (cycle steal) Auto-request (burst) -- *: Don't care (Initial value) 263 * Block Transfer Mode Bit 3 DTF3 0 Bit 2 DTF2 0 Bit 1 DTF1 0 Bit 0 DTF0 0 1 1 0 1 1 0 0 1 1 0 1 1 0 0 0 1 1 0 1 1 0 0 1 1 0 1 Description -- (Initial value) Activated by A/D converter conversion end interrupt Activated by DREQ pin falling edge input* Activated by DREQ pin low-level input Activated by SCI channel 0 transmit-data-empty interrupt Activated by SCI channel 0 reception complete interrupt Activated by SCI channel 1 transmit-data-empty interrupt Activated by SCI channel 1 reception complete interrupt Activated by TPU channel 0 compare match/input capture A interrupt Activated by TPU channel 1 compare match/input capture A interrupt Activated by TPU channel 2 compare match/input capture A interrupt Activated by TPU channel 3 compare match/input capture A interrupt Activated by TPU channel 4 compare match/input capture A interrupt Activated by TPU channel 5 compare match/input capture A interrupt -- -- Note: * Detected as a low level in the first transfer after transfer is enabled. The same factor can be selected for more than one channel. In this case, activation starts with the highest-priority channel according to the relative channel priorities. For relative channel priorities, see section 8.5.13, DMAC Multi-Channel Operation. 264 8.3.5 Bit DMA Band Control Register (DMABCR) : 15 FAE1 0 R/W 7 DTME1 0 R/W 14 FAE0 0 R/W 6 DTE1 0 R/W 13 -- 0 R/W 5 DTME0 0 R/W 12 -- 0 R/W 4 DTE0 0 R/W 11 DTA1 0 R/W 3 DTIE1B 0 R/W 10 -- 0 R/W 2 DTIE1A 0 R/W 9 DTA0 0 R/W 1 DTIE0B 0 R/W 8 -- 0 R/W 0 DTIE0A 0 R/W DMABCRH : Initial value : R/W Bit : : DMABCRL : Initial value : R/W : DMABCR is a 16-bit readable/writable register that controls the operation of each DMAC channel. DMABCR is initialized to H'0000 by a reset, and in standby mode. Bit 15--Full Address Enable 1 (FAE1): Specifies whether channel 1 is to be used in short address mode or full address mode. In full address mode, channels 1A and 1B are used together as a single channel. Bit 15 FAE1 0 1 Description Short address mode Full address mode (Initial value) Bit 14--Full Address Enable 0 (FAE0): Specifies whether channel 0 is to be used in short address mode or full address mode. In full address mode, channels 0A and 0B are used together as a single channel. Bit 14 FAE0 0 1 Description Short address mode Full address mode (Initial value) 265 Bits 13 and 12--Reserved: Can be read or written to. Bits 11 and 9--Data Transfer Acknowledge (DTA): These bits enable or disable clearing, when DMA transfer is performed, of the internal interrupt source selected by the data transfer factor setting. When DTE = 1 and DTA = 1, the internal interrupt source selected by the data transfer factor setting is cleared automatically by DMA transfer. When DTE = 1 and DTA = 1, the internal interrupt source selected by the data transfer factor setting does not issue an interrupt request to the CPU or DTC. When the DTE = 1 and the DTA = 0, the internal interrupt source selected by the data transfer factor setting is not cleared when a transfer is performed, and can issue an interrupt request to the CPU or DTC in parallel. In this case, the interrupt source should be cleared by the CPU or DTC transfer. When the DTE = 0, the internal interrupt source selected by the data transfer factor setting issues an interrupt request to the CPU or DTC regardless of the DTA bit setting. The state of the DTME bit does not affect the above operations. Bit 11--Data Transfer Acknowledge 1 (DTA1): Enables or disables clearing, when DMA transfer is performed, of the internal interrupt source selected by the channel 1 data transfer factor setting. Bit 11 DTA1 0 1 Description Clearing of selected internal interrupt source at time of DMA transfer is disabled (Initial value) Clearing of selected internal interrupt source at time of DMA transfer is enabled Bit 9--Data Transfer Acknowledge 0 (DTA0): Enables or disables clearing, when DMA transfer is performed, of the internal interrupt source selected by the channel 0 data transfer factor setting. Bit 9 DTA0 0 1 Description Clearing of selected internal interrupt source at time of DMA transfer is disabled (Initial value) Clearing of selected internal interrupt source at time of DMA transfer is enabled 266 Bits 10 and 8--Reserved: Can be read or written to. Bits 7 and 5--Data Transfer Master Enable (DTME): Together with the DTE bit, these bits control enabling or disabling of data transfer on the relevant channel. When both the DTME bit and the DTE bit are set to 1, transfer is enabled for the channel. If the relevant channel is in the middle of a burst mode transfer when an NMI interrupt is generated, the DTME bit is cleared, the transfer is interrupted, and bus mastership passes to the CPU. When the DTME bit is subsequently set to 1 again, the interrupted transfer is resumed. In block transfer mode, however, the DTME bit is not cleared by an NMI interrupt, and transfer is not interrupted. The conditions for the DTME bit being cleared to 0 are as follows: * When initialization is performed * When NMI is input in burst mode * When 0 is written to the DTME bit The condition for DTME being set to 1 is as follows: * When 1 is written to DTME after DTME is read as 0 Bit 7--Data Transfer Master Enable 1 (DTME1): Enables or disables data transfer on channel 1. Bit 7 DTME1 0 1 Description Data transfer disabled. In burst mode, cleared to 0 by an NMI interrupt Data transfer enabled (Initial value) Bit 5--Data Transfer Master Enable 0 (DTME0): Enables or disables data transfer on channel 0. Bit 5 DTME0 0 1 Description Data transfer disabled. In normal mode, cleared to 0 by an NMI interrupt (Initial value) Data transfer enabled 267 Bits 6 and 4--Data Transfer Enable (DTE): When DTE = 0, data transfer is disabled and the activation source selected by the data transfer factor setting is ignored. If the activation source is an internal interrupt, an interrupt request is issued to the CPU or DTC. If the DTIE bit is set to 1 when DTE = 0, the DMAC regards this as indicating the end of a transfer, and issues a transfer end interrupt request to the CPU. The conditions for the DTE bit being cleared to 0 are as follows: * When initialization is performed * When the specified number of transfers have been completed * When 0 is written to the DTE bit to forcibly abort the transfer, or for a similar reason When DTE = 1 and DTME = 1, data transfer is enabled and the DMAC waits for a request by the activation source selected by the data transfer factor setting. When a request is issued by the activation source, DMA transfer is executed. The condition for the DTE bit being set to 1 is as follows: * When 1 is written to the DTE bit after the DTE bit is read as 0 Bit 6--Data Transfer Enable 1 (DTE1): Enables or disables data transfer on channel 1. Bit 6 DTE1 0 1 Description Data transfer disabled Data transfer enabled (Initial value) Bit 4--Data Transfer Enable 0 (DTE0): Enables or disables data transfer on channel 0. Bit 4 DTE0 0 1 Description Data transfer disabled Data transfer enabled (Initial value) Bits 3 and 1--Data Transfer Interrupt Enable B (DTIEB): These bits enable or disable an interrupt to the CPU or DTC when transfer is interrupted. If the DTIEB bit is set to 1 when DTME = 0, the DMAC regards this as indicating a break in the transfer, and issues a transfer break interrupt request to the CPU or DTC. A transfer break interrupt can be canceled either by clearing the DTIEB bit to 0 in the interrupt handling routine, or by performing processing to continue transfer by setting the DTME bit to 1. 268 Bit 3--Data Transfer Interrupt Enable 1B (DTIE1B): Enables or disables the channel 1 transfer break interrupt. Bit 3 DTIE1B 0 1 Description Transfer break interrupt disabled Transfer break interrupt enabled (Initial value) Bit 1--Data Transfer Interrupt Enable 0B (DTIE0B): Enables or disables the channel 0 transfer break interrupt. Bit 1 DTIE0B 0 1 Description Transfer break interrupt disabled Transfer break interrupt enabled (Initial value) Bits 2 and 0--Data Transfer End Interrupt Enable A (DTIEA): These bits enable or disable an interrupt to the CPU or DTC when transfer ends. If DTIEA bit is set to 1 when DTE = 0, the DMAC regards this as indicating the end of a transfer, and issues a transfer end interrupt request to the CPU or DTC. A transfer end interrupt can be canceled either by clearing the DTIEA bit to 0 in the interrupt handling routine, or by performing processing to continue transfer by setting the transfer counter and address register again, and then setting the DTE bit to 1. Bit 2--Data Transfer End Interrupt Enable 1A (DTIE1A): Enables or disables the channel 1 transfer end interrupt. Bit 2 DTIE1A 0 1 Description Transfer end interrupt disabled Transfer end interrupt enabled (Initial value) Bit 0--Data Transfer End Interrupt Enable 0A (DTIE0A): Enables or disables the channel 0 transfer end interrupt. Bit 0 DTIE0A 0 1 Description Transfer end interrupt disabled Transfer end interrupt enabled 269 (Initial value) 8.4 8.4.1 Register Descriptions (3) DMA Write Enable Register (DMAWER) The DMAC can activate the DTC with a transfer end interrupt, rewrite the channel on which the transfer ended using a DTC chain transfer, and reactivate the DTC. DMAWER applies restrictions so that only specific bits of DMACR for the specific channel and also DMATCR and DMABCR can be changed to prevent inadvertent changes being made to registers other than those for the channel concerned. The restrictions applied by DMAWER are valid for the DTC. Figure 8-2 shows the transfer areas for activating the DTC with a channel 0A transfer end interrupt, and reactivating channel 0A. The address register and count register area is re-set by the first DTC transfer, then the control register area is re-set by the second DTC chain transfer. When re-setting the control register area, perform masking by setting bits in DMAWER to prevent modification of the contents of the other channels. First transfer area MAR0A IOAR0A ETCR0A MAR0B IOAR0B ETCR0B MAR1A DTC IOAR1A ETCR1A MAR1B IOAR1B ETCR1B DMAWER DMACR0A DMACR1A Second transfer area using chain transfer DMATCR DMACR0B DMACR1B DMABCR Figure 8-2 Areas for Register Re-Setting by DTC (Example: Channel 0A) 270 Bit : 7 -- 0 -- 6 -- 0 -- 5 -- 0 -- 4 -- 0 -- 3 WE1B 0 R/W 2 WE1A 0 R/W 1 WE0B 0 R/W 0 WE0A 0 R/W DMAWER : Initial value : R/W : DMAWER is an 8-bit readable/writable register that controls enabling or disabling of writes to the DMACR, DMABCR, and DMATCR by the DTC. DMAWER is initialized to H'00 by a reset, and in standby mode. Bits 7 to 4--Reserved: These bits are always read as 0 and cannot be modified. Bit 3--Write Enable 1B (WE1B): Enables or disables writes to all bits in DMACR1B, bits 11, 7, and 3 in DMABCR, and bit 5 in DMATCR by the DTC. Bit 3 WE1B 0 1 Description Writes to all bits in DMACR1B, bits 11, 7, and 3 in DMABCR, and bit 5 in DMATCR are disabled (Initial value) Writes to all bits in DMACR1B, bits 11, 7, and 3 in DMABCR, and bit 5 in DMATCR are enabled Bit 2--Write Enable 1A (WE1A): Enables or disables writes to all bits in DMACR1A, and bits 10, 6, and 2 in DMABCR by the DTC. Bit 2 WE1A 0 1 Description Writes to all bits in DMACR1A, and bits 10, 6, and 2 in DMABCR are disabled (Initial value) Writes to all bits in DMACR1A, and bits 10, 6, and 2 in DMABCR are enabled Bit 1--Write Enable 0B (WE0B): Enables or disables writes to all bits in DMACR0B, bits 9, 5, and 1 in DMABCR, and bit 4 in DMATCR. Bit 1 WE0B 0 1 Description Writes to all bits in DMACR0B, bits 9, 5, and 1 in DMABCR, and bit 4 in DMATCR are disabled (Initial value) Writes to all bits in DMACR0B, bits 9, 5, and 1 in DMABCR, and bit 4 in DMATCR are enabled 271 Bit 0--Write Enable 0A (WE0A): Enables or disables writes to all bits in DMACR0A, and bits 8, 4, and 0 in DMABCR. Bit 0 WE0A 0 1 Description Writes to all bits in DMACR0A, and bits 8, 4, and 0 in DMABCR are disabled (Initial value) Writes to all bits in DMACR0A, and bits 8, 4, and 0 in DMABCR are enabled Writes by the DTC to bits 15 to 12 (FAE and SAE) in DMABCR are invalid regardless of the DMAWER settings. These bits should be changed, if necessary, by CPU processing. In writes by the DTC to bits 7 to 4 (DTE) in DMABCR, 1 can be written without first reading 0. To reactivate a channel set to full address mode, write 1 to both Write Enable A and Write Enable B for the channel to be reactivated. MAR, IOAR, and ETCR are always write-enabled regardless of the DMAWER settings. When modifying these registers, the channel for which the modification is to be made should be halted. 8.4.2 Bit DMA Terminal Control Register (DMATCR) : 7 -- 0 -- 6 -- 0 -- 5 TEE1 0 R/W 4 TEE0 0 R/W 3 -- 0 -- 2 -- 0 -- 1 -- 0 -- 0 -- 0 -- DMATCR : Initial value : R/W : DMATCR is an 8-bit readable/writable register that controls enabling or disabling of DMAC transfer end pin output. A port can be set for output automatically, and a transfer end signal output, by setting the appropriate bit. DMATCR is initialized to H'00 by a reset, and in standby mode. Bits 7 and 6--Reserved: These bits are always read as 0 and cannot be modified. Bit 5--Transfer End Enable 1 (TEE1): Enables or disables transfer end pin 1 (TEND1) output. Bit 5 TEE1 0 1 Description TEND1 pin output disabled TEND1 pin output enabled (Initial value) 272 Bit 4--Transfer End Enable 0 (TEE0): Enables or disables transfer end pin 0 (TEND0) output. Bit 4 TEE0 0 1 Description TEND0 pin output disabled TEND0 pin output enabled (Initial value) The TEND pins are assigned only to channel B in short address mode. The transfer end signal indicates the transfer cycle in which the transfer counter reached 0, regardless of the transfer source. An exception is block transfer mode, in which the transfer end signal indicates the transfer cycle in which the block counter reached 0. Bits 3 to 0--Reserved: These bits are always read as 0 and cannot be modified. 8.4.3 Bit Module Stop Control Register (MSTPCR) : 7 6 5 4 3 2 1 0 MSTPA7 MSTPA6 MSTPA5 MSTPA4 MSTPA3 MSTPA2 MSTPA1 MSTPA0 Initial value : R/W : 0 R/W 0 R/W 1 R/W 1 R/W 1 R/W 1 R/W 1 R/W 1 R/W MSTPCRA is a 8-bit readable/writable register that performs module stop mode control. When the MSTPA7 bit in MSTPCR is set to 1, the DMAC operation stops at the end of the bus cycle and a transition is made to module stop mode. For details, see section 24.5, Module Stop Mode. MSTPCRA is initialized to H'3F by a reset and in hardware standby mode. It is not initialized by a manual reset and in software standby mode. Bit 7--Module Stop (MSTP7): Specifies the DMAC module stop mode. Bits 7 MSTPA7 0 1 Description DMAC module stop mode cleared DMAC module stop mode set (Initial value) 273 8.5 8.5.1 Operation Transfer Modes Table 8-5 lists the DMAC modes. Table 8-5 DMAC Transfer Modes Transfer Source TPU channel 0 to 5 compare match/input capture A interrupt SCI transmit-data-empty interrupt SCI reception complete * interrupt A/D converter conversion end interrupt External request * Remarks * * Up to 4 channels can operate independently External request applies to channel B only Single address mode applies to channel B only Modes (1), (2), and (3) can also be specified for single address mode Transfer Mode Short address mode Dual (1) Sequential mode * address (2) Idle mode mode (3) Repeat mode * * * * (4) Single address mode Full address mode (5) Normal mode * * (6) Block transfer mode * External request Auto-request TPU channel 0 to 5 compare match/input capture A interrupt SCI transmit-data-empty interrupt SCI reception complete interrupt A/D converter conversion end interrupt External request * Max. 2-channel operation, combining channels A and B With auto-request, burst mode transfer or cycle steal transfer can be selected * * * * * 274 Operation in each mode is summarized below. (1) Sequential mode In response to a single transfer request, the specified number of transfers are carried out, one byte or one word at a time. An interrupt request can be sent to the CPU or DTC when the specified number of transfers have been completed. One address is specified as 24 bits, and the other as 16 bits. The transfer direction is programmable. (2) Idle mode In response to a single transfer request, the specified number of transfers are carried out, one byte or one word at a time. An interrupt request can be sent to the CPU or DTC when the specified number of transfers have been completed. One address is specified as 24 bits, and the other as 16 bits. The transfer source address and transfer destination address are fixed. The transfer direction is programmable. (3) Repeat mode In response to a single transfer request, the specified number of transfers are carried out, one byte or one word at a time. When the specified number of transfers have been completed, the addresses and transfer counter are restored to their original settings, and operation is continued. No interrupt request is sent to the CPU or DTC. One address is specified as 24 bits, and the other as 16 bits. The transfer direction is programmable. (4) Single address mode In response to a single transfer request, the specified number of transfers are carried out between external memory and an external device, one byte or one word at a time. Unlike dual address mode, source and destination accesses are performed in parallel. Therefore, either the source or the destination is an external device which can be accessed with a strobe alone, using the DACK pin. One address is specified as 24 bits, and for the other, the pin is set automatically. The transfer direction is programmable. Modes (1), (2) and (3) can also be specified for single address mode. (5) Normal mode * Auto-request By means of register settings only, the DMAC is activated, and transfer continues until the specified number of transfers have been completed. An interrupt request can be sent to the CPU or DTC when transfer is completed. Both addresses are specified as 24 bits. Cycle steal mode: The bus is released to another bus master every byte or word transfer. Burst mode: The bus is held and transfer continued until the specified number of transfers have been completed. 275 * External request In response to a single transfer request, the specified number of transfers are carried out, one byte or one word at a time. An interrupt request can be sent to the CPU or DTC when the specified number of transfers have been completed. Both addresses are specified as 24 bits. (6) Block transfer mode In response to a single transfer request, a block transfer of the specified block size is carried out. This is repeated the specified number of times, once each time there is a transfer request. At the end of each single block transfer, one address is restored to its original setting. An interrupt request can be sent to the CPU or DTC when the specified number of block transfers have been completed. Both addresses are specified as 24 bits. 8.5.2 Sequential Mode Sequential mode can be specified by clearing the RPE bit in DMACR to 0. In sequential mode, MAR is updated after each byte or word transfer in response to a single transfer request, and this is executed the number of times specified in ETCR. One address is specified by MAR, and the other by IOAR. The transfer direction can be specified by the DTDIR bit in DMACR. Table 8-6 summarizes register functions in sequential mode. Table 8-6 Register Functions in Sequential Mode Function Register 23 MAR 23 H'FF 15 ETCR 15 IOAR DTDIR = 0 DTDIR = 1 Initial Setting 0 Source Operation address register address register Destination Start address of Incremented/ address transfer destination decremented every register or transfer source transfer address register Start address of Fixed transfer source or transfer destination Number of transfers Decremented every transfer; transfer ends when count reaches H'0000 0 Destination Source 0 Transfer counter Legend MAR : Memory address register IOAR : I/O address register ETCR : Transfer count register DTDIR : Data transfer direction bit 276 MAR specifies the start address of the transfer source or transfer destination as 24 bits. MAR is incremented or decremented by 1 or 2 each time a byte or word is transferred. IOAR specifies the lower 16 bits of the other address. The 8 bits above IOAR have a value of H'FF. Figure 8-3 illustrates operation in sequential mode. Address T Transfer IOAR 1 byte or word transfer performed in response to 1 transfer request Address B Legend Address T = L Address B = L + (-1)DTID * (2DTSZ * (N-1)) Where : L = Value set in MAR N = Value set in ETCR Figure 8-3 Operation in Sequential Mode The number of transfers is specified as 16 bits in ETCR. ETCR is decremented by 1 each time a transfer is executed, and when its value reaches H'0000, the DTE bit is cleared and transfer ends. If the DTIE bit is set to 1 at this time, an interrupt request is sent to the CPU or DTC. The maximum number of transfers, when H'0000 is set in ETCR, is 65,536. 277 Transfer requests (activation sources) consist of A/D converter conversion end interrupts, external requests, SCI transmission complete and reception complete interrupts, and TPU channels 0 to 5 compare match/input capture A interrupts. External requests can be set for channel B only. Figure 8-4 shows an example of the setting procedure for sequential mode. [1] Set each bit in DMABCRH. * Clear the FAE bit to 0 to select short address mode. * Specify enabling or disabling of internal interrupt clearing with the DTA bit. [1] [2] Set the transfer source address and transfer destination address in MAR and IOAR. [3] Set the number of transfers in ETCR. Set transfer source and transfer destination addresses [2] [4] Set each bit in DMACR. * Set the transfer data size with the DTSZ bit. * Specify whether MAR is to be incremented or decremented with the DTID bit. * Clear the RPE bit to 0 to select sequential mode. * Specify the transfer direction with the DTDIR bit. * Select the activation source with bits DTF3 to DTF0. [5] Read the DTE bit in DMABCRL as 0. [6] Set each bit in DMABCRL. * Specify enabling or disabling of transfer end interrupts with the DTIE bit. * Set the DTE bit to 1 to enable transfer. Sequential mode setting Set DMABCRH Set number of transfers [3] Set DMACR [4] Read DMABCRL [5] Set DMABCRL [6] Sequential mode Figure 8-4 Example of Sequential Mode Setting Procedure 278 8.5.3 Idle Mode Idle mode can be specified by setting the RPE bit and DTIE bit in DMACR to 1. In idle mode, one byte or word is transferred in response to a single transfer request, and this is executed the number of times specified in ETCR. One address is specified by MAR, and the other by IOAR. The transfer direction can be specified by the DTDIR bit in DMACR. Table 8-7 summarizes register functions in idle mode. Table 8-7 Register Functions in Idle Mode Function Register 23 MAR 23 H'FF 15 ETCR 15 IOAR DTDIR = 0 DTDIR = 1 Initial Setting 0 Source Operation address register address register Destination Start address of Fixed address transfer destination register or transfer source address register Start address of Fixed transfer source or transfer destination Number of transfers Decremented every transfer; transfer ends when count reaches H'0000 0 Destination Source 0 Transfer counter Legend MAR : Memory address register IOAR : I/O address register ETCR : Transfer count register DTDIR : Data transfer direction bit MAR specifies the start address of the transfer source or transfer destination as 24 bits. MAR is neither incremented nor decremented each time a byte or word is transferred. IOAR specifies the lower 16 bits of the other address. The 8 bits above IOAR have a value of H'FF. 279 Figure 8-5 illustrates operation in idle mode. MAR Transfer IOAR 1 byte or word transfer performed in response to 1 transfer request Figure 8-5 Operation in Idle Mode The number of transfers is specified as 16 bits in ETCR. ETCR is decremented by 1 each time a transfer is executed, and when its value reaches H'0000, the DTE bit is cleared and transfer ends. If the DTIE bit is set to 1 at this time, an interrupt request is sent to the CPU or DTC. The maximum number of transfers, when H'0000 is set in ETCR, is 65,536. Transfer requests (activation sources) consist of A/D converter conversion end interrupts, external requests, SCI transmission complete and reception complete interrupts, and TPU channels 0 to 5 compare match/input capture A interrupts. External requests can be set for channel B only. When the DMAC is used in single address mode, only channel B can be set. 280 Figure 8-6 shows an example of the setting procedure for idle mode. Idle mode setting [1] Set each bit in DMABCRH. * Clear the FAE bit to 0 to select short address mode. * Specify enabling or disabling of internal interrupt clearing with the DTA bit. [1] [2] Set the transfer source address and transfer destination address in MAR and IOAR. [3] Set the number of transfers in ETCR. Set DMABCRH Set transfer source and transfer destination addresses [2] Set number of transfers [3] [4] Set each bit in DMACR. * Set the transfer data size with the DTSZ bit. * Specify whether MAR is to be incremented or decremented with the DTID bit. * Set the RPE bit to 1. * Specify the transfer direction with the DTDIR bit. * Select the activation source with bits DTF3 to DTF0. [5] Read the DTE bit in DMABCRL as 0. [6] Set each bit in DMABCRL. * Set the DTIE bit to 1. * Set the DTE bit to 1 to enable transfer. Set DMACR [4] Read DMABCRL [5] Set DMABCRL [6] Idle mode Figure 8-6 Example of Idle Mode Setting Procedure 281 8.5.4 Repeat Mode Repeat mode can be specified by setting the RPE bit in DMACR to 1, and clearing the DTIE bit to 0. In repeat mode, MAR is updated after each byte or word transfer in response to a single transfer request, and this is executed the number of times specified in ETCR. On completion of the specified number of transfers, MAR and ETCRL are automatically restored to their original settings and operation continues. One address is specified by MAR, and the other by IOAR. The transfer direction can be specified by the DTDIR bit in DMACR. Table 8-8 summarizes register functions in repeat mode. Table 8-8 Register Functions in Repeat Mode Function Register 23 MAR DTDIR = 0 DTDIR = 1 Initial Setting 0 Source Operation address register Destination Start address of Incremented/ address transfer destination decremented every register or transfer source transfer. Initial setting is restored when value reaches H'0000 address register Start address of Fixed transfer source or transfer destination Number of transfers Fixed 23 H'FF 15 IOAR 7 ETCRH 0 Destination Source address register transfers 0 Holds number of 7 ETCRL 0 Transfer counter Number of transfers Decremented every transfer. Loaded with ETCRH value when count reaches H'00 Legend MAR : Memory address register IOAR : I/O address register ETCR : Transfer count register DTDIR : Data transfer direction bit 282 MAR specifies the start address of the transfer source or transfer destination as 24 bits. MAR is incremented or decremented by 1 or 2 each time a byte or word is transferred. IOAR specifies the lower 16 bits of the other address. The 8 bits above IOAR have a value of H'FF. The number of transfers is specified as 8 bits by ETCRH and ETCRL. The maximum number of transfers, when H'00 is set in both ETCRH and ETCRL, is 256. In repeat mode, ETCRL functions as the transfer counter, and ETCRH is used to hold the number of transfers. ETCRL is decremented by 1 each time a transfer is executed, and when its value reaches H'00, it is loaded with the value in ETCRH. At the same time, the value set in MAR is restored in accordance with the values of the DTSZ and DTID bits in DMACR. The MAR restoration operation is as shown below. MAR = MAR - (-1)DTID * 2DTSZ * ETCRH The same value should be set in ETCRH and ETCRL. In repeat mode, operation continues until the DTE bit is cleared. To end the transfer operation, therefore, you should clear the DTE bit to 0. A transfer end interrupt request is not sent to the CPU or DTC. By setting the DTE bit to 1 again after it has been cleared, the operation can be restarted from the transfer after that terminated when the DTE bit was cleared. 283 Figure 8-7 illustrates operation in repeat mode. Address T Transfer IOAR 1 byte or word transfer performed in response to 1 transfer request Address B Legend Address T = L Address B = L + (-1)DTID * (2DTSZ * (N-1)) Where : L = Value set in MAR N = Value set in ETCR Figure 8-7 Operation in Repeat mode Transfer requests (activation sources) consist of A/D converter conversion end interrupts, external requests, SCI transmission complete and reception complete interrupts, and TPU channels 0 to 5 compare match/input capture A interrupts. External requests can be set for channel B only. 284 Figure 8-8 shows an example of the setting procedure for repeat mode. Repeat mode setting [1] Set each bit in DMABCRH. * Clear the FAE bit to 0 to select short address mode. * Specify enabling or disabling of internal interrupt clearing with the DTA bit. [1] [2] Set the transfer source address and transfer destination address in MAR and IOAR. [3] Set the number of transfers in both ETCRH and ETCRL. [2] [4] Set each bit in DMACR. * Set the transfer data size with the DTSZ bit. * Specify whether MAR is to be incremented or decremented with the DTID bit. * Set the RPE bit to 1. * Specify the transfer direction with the DTDIR bit. * Select the activation source with bits DTF3 to DTF0. [5] Read the DTE bit in DMABCRL as 0. [6] Set each bit in DMABCRL. * Clear the DTIE bit to 0. * Set the DTE bit to 1 to enable transfer. Set DMABCRH Set transfer source and transfer destination addresses Set number of transfers [3] Set DMACR [4] Read DMABCRL [5] Set DMABCRL [6] Repeat mode Figure 8-8 Example of Repeat Mode Setting Procedure 285 8.5.5 Single Address Mode Single address mode can only be specified for channel B. This mode can be specified by setting the SAE bit in DMABCR to 1 in short address mode. One address is specified by MAR, and the other is set automatically to the data transfer acknowledge pin (DACK). The transfer direction can be specified by the DTDIR in DMACR. Table 8-9 summarizes register functions in single address mode. Table 8-9 Register Functions in Single Address Mode Function Register 23 MAR DTDIR = 0 DTDIR = 1 Initial Setting 0 Source Operation address register Write strobe Destination Start address of * address transfer destination register or transfer source Read strobe (Set automatically Strobe for external by SAE bit; IOAR is device invalid) Number of transfers * DACK pin 15 ETCR 0 Transfer counter Legend MAR : Memory address register IOAR : I/O address register ETCR : Transfer count register DTDIR : Data transfer direction bit DACK : Data transfer acknowledge Note: * See the operation descriptions in sections 8.5.2, Sequential Mode, 8.5.3, Idle Mode, and 8.5.4, Repeat Mode. MAR specifies the start address of the transfer source or transfer destination as 24 bits. IOAR is invalid; in its place the strobe for external devices (DACK) is output. 286 Figure 8-9 illustrates operation in single address mode (when sequential mode is specified). Address T Transfer DACK 1 byte or word transfer performed in response to 1 transfer request Address B Legend Address T = L Address B = L + (-1)DTID * (2DTSZ * (N-1)) Where : L = Value set in MAR N = Value set in ETCR Figure 8-9 Operation in Single Address Mode (When Sequential Mode is Specified) 287 Figure 8-10 shows an example of the setting procedure for single address mode (when sequential mode is specified). Single address mode setting Set DMABCRH [1] [1] Set each bit in DMABCRH. * Clear the FAE bit to 0 to select short address mode. * Set the SAE bit to 1 to select single address mode. * Specify enabling or disabling of internal interrupt clearing with the DTA bit. [2] Set the transfer source address/transfer destination address in MAR. Set transfer source and transfer destination addresses [2] [3] Set the number of transfers in ETCR. [4] Set each bit in DMACR. * Set the transfer data size with the DTSZ bit. * Specify whether MAR is to be incremented or decremented with the DTID bit. * Clear the RPE bit to 0 to select sequential mode. * Specify the transfer direction with the DTDIR bit. * Select the activation source with bits DTF3 to DTF0. [5] Read the DTE bit in DMABCRL as 0. Set number of transfers [3] Set DMACR [4] Read DMABCRL [5] [6] Set each bit in DMABCRL. * Specify enabling or disabling of transfer end interrupts with the DTIE bit. * Set the DTE bit to 1 to enable transfer. Set DMABCRL [6] Single address mode Figure 8-10 Example of Single Address Mode Setting Procedure (When Sequential Mode is Specified) 288 8.5.6 Normal Mode In normal mode, transfer is performed with channels A and B used in combination. Normal mode can be specified by setting the FAE bit in DMABCR to 1 and clearing the BLKE bit in DMACRA to 0. In normal mode, MAR is updated after each byte or word transfer in response to a single transfer request, and this is executed the number of times specified in ETCRA. The transfer source is specified by MARA, and the transfer destination by MARB. Table 8-10 summarizes register functions in normal mode. Table 8-10 Register Functions in Normal Mode Register 23 MARA 23 MARB 15 ETCRA Function 0 Source address Initial Setting Start address of transfer source Operation Incremented/decremented every transfer, or fixed register 0 Destination address register 0 Transfer counter Start address of Incremented/decremented transfer destination every transfer, or fixed Number of transfers Decremented every transfer; transfer ends when count reaches H'0000 Legend MARA : Memory address register A MARB : Memory address register B ETCRA : Transfer count register A MARA and MARB specify the start addresses of the transfer source and transfer destination, respectively, as 24 bits. MAR can be incremented or decremented by 1 or 2 each time a byte or word is transferred, or can be fixed. Incrementing, decrementing, or holding a fixed value can be set separately for MARA and MARB. The number of transfers is specified by ETCRA as 16 bits. ETCRA is decremented each time a transfer is performed, and when its value reaches H'0000 the DTE bit is cleared and transfer ends. If the DTIE bit is set to 1 at this time, an interrupt request is sent to the CPU or DTC. The maximum number of transfers, when H'0000 is set in ETCRA, is 65,536. 289 Figure 8-11 illustrates operation in normal mode. Address TA Transfer Address TB Address BA Legend Address Address Address Address Where : Address BB TA TB BA BB LA LB N = LA = LB = LA + SAIDE * (-1)SAID * (2DTSZ * (N-1)) = LB + DAIDE * (-1)DAID * (2DTSZ * (N-1)) = Value set in MARA = Value set in MARB = Value set in ETCRA Figure 8-11 Operation in Normal Mode Transfer requests (activation sources) are external requests and auto-requests. With auto-request, the DMAC is only activated by register setting, and the specified number of transfers are performed automatically. With auto-request, cycle steal mode or burst mode can be selected. In cycle steal mode, the bus is released to another bus master each time a transfer is performed. In burst mode, the bus is held continuously until transfer ends. 290 For setting details, see section 8.3.4, DMA Controller Register (DMACR). Figure 8-12 shows an example of the setting procedure for normal mode. Normal mode setting [1] Set each bit in DMABCRH. * Set the FAE bit to 1 to select full address mode. * Specify enabling or disabling of internal interrupt clearing with the DTA bit. [1] [2] Set the transfer source address in MARA, and the transfer destination address in MARB. [3] Set the number of transfers in ETCRA. Set DMABCRH Set transfer source and transfer destination addresses [2] Set number of transfers [3] Set DMACR [4] [4] Set each bit in DMACRA and DMACRB. * Set the transfer data size with the DTSZ bit. * Specify whether MARA is to be incremented, decremented, or fixed, with the SAID and SAIDE bits. * Clear the BLKE bit to 0 to select normal mode. * Specify whether MARB is to be incremented, decremented, or fixed, with the DAID and DAIDE bits. * Select the activation source with bits DTF3 to DTF0. [5] Read DTE = 0 and DTME = 0 in DMABCRL. Read DMABCRL [5] Set DMABCRL [6] [6] Set each bit in DMABCRL. * Specify enabling or disabling of transfer end interrupts with the DTIE bit. * Set both the DTME bit and the DTE bit to 1 to enable transfer. Normal mode Figure 8-12 Example of Normal Mode Setting Procedure 291 8.5.7 Block Transfer Mode In block transfer mode, transfer is performed with channels A and B used in combination. Block transfer mode can be specified by setting the FAE bit in DMABCR and the BLKE bit in DMACRA to 1. In block transfer mode, a transfer of the specified block size is carried out in response to a single transfer request, and this is executed the specified number of times. The transfer source is specified by MARA, and the transfer destination by MARB. Either the transfer source or the transfer destination can be selected as a block area (an area composed of a number of bytes or words). Table 8-11 summarizes register functions in block transfer mode. Table 8-11 Register Functions in Block Transfer Mode Register 23 MARA 23 MARB 7 Function 0 Source address Initial Setting Start address of transfer source Operation Incremented/decremented every transfer, or fixed register 0 Destination address register 0 Holds block ETCRAH Start address of Incremented/decremented transfer destination every transfer, or fixed Block size Fixed size Block size Block size Decremented every transfer; ETCRH value copied when count reaches H'00 Decremented every block transfer; transfer ends when count reaches H'0000 7 ETCRAL 15 ETCRB 0 counter 0 Block transfer counter Number of block transfers Legend MARA : Memory address register A MARB : Memory address register B ETCRA : Transfer count register A ETCRB : Transfer count register B MARA and MARB specify the start addresses of the transfer source and transfer destination, respectively, as 24 bits. MAR can be incremented or decremented by 1 or 2 each time a byte or word is transferred, or can be fixed. Incrementing, decrementing, or holding a fixed value can be set separately for MARA and MARB. 292 Whether a block is to be designated for MARA or for MARB is specified by the BLKDIR bit in DMACRA. To specify the number of transfers, if M is the size of one block (where M = 1 to 256) and N transfers are to be performed (where N = 1 to 65,536), M is set in both ETCRAH and ETCRAL, and N in ETCRB. Figure 8-13 illustrates operation in block transfer mode when MARB is designated as a block area. Address TA 1st block Transfer Block area Address TB 2nd block Consecutive transfer of M bytes or words is performed in response to one request Address BB Nth block Address BA Legend Address Address Address Address Where : TA TB BA BB LA LB N M = LA = LB = LA + SAIDE * (-1)SAID * (2DTSZ * (M*N-1)) = LB + DAIDE * (-1)DAID * (2DTSZ * (N-1)) = Value set in MARA = Value set in MARB = Value set in ETCRB = Value set in ETCRAH and ETCRAL Figure 8-13 Operation in Block Transfer Mode (BLKDIR = 0) 293 Figure 8-14 illustrates operation in block transfer mode when MARA is designated as a block area. Address TA Block area Address BA Address TB Transfer Consecutive transfer of M bytes or words is performed in response to one request 2nd block 1st block Nth block Address BB Legend Address Address Address Address Where : TA TB BA BB LA LB N M = LA = LB = LA + SAIDE * (-1)SAID * (2DTSZ * (N-1)) = LB + DAIDE * (-1)DAID * (2DTSZ * (M*N-1)) = Value set in MARA = Value set in MARB = Value set in ETCRB = Value set in ETCRAH and ETCRAL Figure 8-14 Operation in Block Transfer Mode (BLKDIR = 1) 294 ETCRAL is decremented by 1 each time a byte or word transfer is performed. In response to a single transfer request, burst transfer is performed until the value in ETCRAL reaches H'00. ETCRAL is then loaded with the value in ETCRAH. At this time, the value in the MAR register for which a block designation has been given by the BLKDIR bit in DMACRA is restored in accordance with the DTSZ, SAID/DAID, and SAIDE/DAIDE bits in DMACR. ETCRB is decremented by 1 every block transfer, and when the count reaches H'0000 the DTE bit is cleared and transfer ends. If the DTIE bit is set to 1 at this point, an interrupt request is sent to the CPU or DTC. Figure 8-15 shows the operation flow in block transfer mode. 295 Start (DTE = DTME = 1) No Transfer request? Yes Acquire bus Read address specified by MARA MARA=MARA+SAIDE*(-1)SAID*2DTSZ Write to address specified by MARB MARB=MARB+DAIDE*(-1)DAID *2DTSZ ETCRAL=ETCRAL-1 No ETCRAL=H'00 Yes Release bus ETCRAL=ETCRAH BLKDIR=0 No Yes MARB=MARB-DAIDE*(-1)DAID*2DTSZ*ETCRAH MARA=MARA-SAIDE*(-1)SAID*2DTSZ*ETCRAH ETCRB=ETCRB-1 No ETCRB=H'0000 Yes Clear DTE bit to 0 to end transfer Figure 8-15 Operation Flow in Block Transfer Mode Transfer requests (activation sources) consist of A/D converter conversion end interrupts, external requests, SCI transmission complete and reception complete interrupts, and TPU channels 0 to 5 compare match/input capture A interrupts. 296 For details, see section 8.3.4, DMA Control Register (DMACR). Figure 8-16 shows an example of the setting procedure for block transfer mode. Block transfer mode setting [1] Set each bit in DMABCRH. * Set the FAE bit to 1 to select full address mode. * Specify enabling or disabling of internal interrupt clearing with the DTA bit. [1] [2] Set the transfer source address in MARA, and the transfer destination address in MARB. [3] Set the block size in both ETCRAH and ETCRAL. Set the number of transfers in ETCRB. [4] Set each bit in DMACRA and DMACRB. * Set the transfer data size with the DTSZ bit. * Specify whether MARA is to be incremented, decremented, or fixed, with the SAID and SAIDE bits. * Set the BLKE bit to 1 to select block transfer mode. * Specify whether the transfer source or the transfer destination is a block area with the BLKDIR bit. * Specify whether MARB is to be incremented, decremented, or fixed, with the DAID and DAIDE bits. * Select the activation source with bits DTF3 to DTF0. [5] Read DTE = 0 and DTME = 0 in DMABCRL. Set DMABCRH Set transfer source and transfer destination addresses [2] Set number of transfers [3] Set DMACR [4] Read DMABCRL [5] Set DMABCRL [6] Block transfer mode [6] Set each bit in DMABCRL. * Specify enabling or disabling of transfer end interrupts to the CPU with the DTIE bit. * Set both the DTME bit and the DTE bit to 1 to enable transfer. Figure 8-16 Example of Block Transfer Mode Setting Procedure 297 8.5.8 DMAC Activation Sources DMAC activation sources consist of internal interrupts, external requests, and auto-requests. The activation sources that can be specified depend on the transfer mode and the channel, as shown in table 8-12. Table 8-12 DMAC Activation Sources Short Address Mode Channels 0A and 1A Channels 0B and 1B Full Address Mode Normal Mode X X X X X X X X X X X X X X X X Block Transfer Mode Activation Source Internal Interrupts ADI TXI0 RXI0 TXI1 RXI1 TGI0A TGI1A TGI2A TGI3A TGI4A TGI5A External Requests DREQ pin falling edge input DREQ pin low-level input Auto-request Legend : Can be specified X : Cannot be specified Activation by Internal Interrupt: An interrupt request selected as a DMAC activation source can be sent simultaneously to the CPU and DTC. For details, see section 5, Interrupt Controller. With activation by an internal interrupt, the DMAC accepts the request independently of the interrupt controller. Consequently, interrupt controller priority settings are not accepted. If the DMAC is activated by a CPU interrupt source or an interrupt source that is not used as a DTC activation source (DTA = 1), the interrupt source flag is cleared automatically by the DMA transfer. With ADI, TXI, and RXI interrupts, however, the interrupt source flag is not cleared unless the prescribed register is accessed in a DMA transfer. If the same interrupt is used as an 298 activation source for more than one channel, the interrupt request flag is cleared when the highestpriority channel is activated first. Transfer requests for other channels are held pending in the DMAC, and activation is carried out in order of priority. When DTE = 0, such as after completion of a transfer, a request from the selected activation source is not sent to the DMAC, regardless of the DTA bit. In this case, the relevant interrupt request is sent to the CPU or DTC. In case of overlap with a CPU interrupt source or DTC activation source (DTA = 0), the interrupt request flag is not cleared by the DMAC. Activation by External Request: If an external request (DREQ pin) is specified as an activation source, the relevant port should be set to input mode in advance. Level sensing or edge sensing can be used for external requests. External request operation in normal mode (short address mode or full address mode) is described below. When edge sensing is selected, a 1-byte or 1-word transfer is executed each time a high-to-low transition is detected on the DREQ pin. The next transfer may not be performed if the next edge is input before transfer is completed. When level sensing is selected, the DMAC stands by for a transfer request while the DREQ pin is held high. While the DREQ pin is held low, transfers continue in succession, with the bus being released each time a byte or word is transferred. If the DREQ pin goes high in the middle of a transfer, the transfer is interrupted and the DMAC stands by for a transfer request. Activation by Auto-Request: Auto-request activation is performed by register setting only, and transfer continues to the end. With auto-request activation, cycle steal mode or burst mode can be selected. In cycle steal mode, the DMAC releases the bus to another bus master each time a byte or word is transferred. DMA and CPU cycles usually alternate. In burst mode, the DMAC keeps possession of the bus until the end of the transfer, and transfer is performed continuously. Single Address Mode: The DMAC can operate in dual address mode in which read cycles and write cycles are separate cycles, or single address mode in which read and write cycles are executed in parallel. In dual address mode, transfer is performed with the source address and destination address specified separately. 299 In single address mode, on the other hand, transfer is performed between external space in which either the transfer source or the transfer destination is specified by an address, and an external device for which selection is performed by means of the DACK strobe, without regard to the address. Figure 8-17 shows the data bus in single address mode. RD HWR, LWR A23 to A0 Address bus (Read) External memory D15 to D0 (high impedance) Data bus H8S/2633 (Write) External device DACK Figure 8-17 Data Bus in Single Address Mode When using the DMAC for single address mode reading, transfer is performed from external memory to the external device, and the DACK pin functions as a write strobe for the external device. When using the DMAC for single address mode writing, transfer is performed from the external device to external memory, and the DACK pin functions as a read strobe for the external device. Since there is no directional control for the external device, one or other of the above single directions should be used. Bus cycles in single address mode are in accordance with the settings of the bus controller for the external memory area. On the external device side, DACK is output in synchronization with the address strobe. For details of bus cycles, see section 8.5.11, DMAC Bus Cycles (Single Address Mode). Do not specify internal space for transfer addresses in single address mode. 300 8.5.9 Basic DMAC Bus Cycles An example of the basic DMAC bus cycle timing is shown in figure 8-18. In this example, wordsize transfer is performed from 16-bit , 2-state access space to 8-bit, 3-state access space. When the bus is transferred from the CPU to the DMAC, a source address read and destination address write are performed. The bus is not released in response to another bus request, etc., between these read and write operations. As with CPU cycles, DMA cycles conform to the bus controller settings. CPU cycle T1 o DMAC cycle (1-word transfer) T2 T1 T2 T3 T1 T2 T3 CPU cycle Source address Address bus RD HWR LWR Destination address Figure 8-18 Example of DMA Transfer Bus Timing The address is not output to the external address bus in an access to on-chip memory or an internal I/O register. 301 8.5.10 DMAC Bus Cycles (Dual Address Mode) Short Address Mode: Figure 8-19 shows a transfer example in which TEND output is enabled and byte-size short address mode transfer (sequential/idle/repeat mode) is performed from external 8-bit, 2-state access space to internal I/O space. DMA read DMA write DMA read DMA write DMA read DMA write DMA dead o Address bus RD HWR LWR TEND Bus release Bus release Bus release Last transfer cycle Bus release Figure 8-19 Example of Short Address Mode Transfer A one-byte or one-word transfer is performed for one transfer request, and after the transfer the bus is released. While the bus is released one or more bus cycles are inserted by the CPU or DTC. In the transfer end cycle (the cycle in which the transfer counter reaches 0), a one-state DMA dead cycle is inserted after the DMA write cycle. In repeat mode, when TEND output is enabled, TEND output goes low in the transfer cycle in which the transfer counter reaches 0. 302 Full Address Mode (Cycle Steal Mode): Figure 8-20 shows a transfer example in which TEND output is enabled and word-size full address mode transfer (cycle steal mode) is performed from external 16-bit, 2-state access space to external 16-bit, 2-state access space. DMA read o Address bus RD HWR LWR TEND DMA write DMA read DMA write DMA read DMA write DMA dead Bus release Bus release Bus release Last transfer cycle Bus release Figure 8-20 Example of Full Address Mode (Cycle Steal) Transfer A one-byte or one-word transfer is performed, and after the transfer the bus is released. While the bus is released one bus cycle is inserted by the CPU or DTC. In the transfer end cycle (the cycle in which the transfer counter reaches 0), a one-state DMA dead cycle is inserted after the DMA write cycle. 303 Full Address Mode (Burst Mode): Figure 8-21 shows a transfer example in which TEND output is enabled and word-size full address mode transfer (burst mode) is performed from external 16bit, 2-state access space to external 16-bit, 2-state access space. DMA read DMA write DMA read DMA write DMA read DMA write DMA dead o Address bus RD HWR LWR TEND Bus release Burst transfer Last transfer cycle Bus release Figure 8-21 Example of Full Address Mode (Burst Mode) Transfer In burst mode, one-byte or one-word transfers are executed consecutively until transfer ends. In the transfer end cycle (the cycle in which the transfer counter reaches 0), a one-state DMA dead cycle is inserted after the DMA write cycle. If a request from another higher-priority channel is generated after burst transfer starts, that channel has to wait until the burst transfer ends. If an NMI is generated while a channel designated for burst transfer is in the transfer enabled state, the DTME bit is cleared and the channel is placed in the transfer disabled state. If burst transfer has already been activated inside the DMAC, the bus is released on completion of a one-byte or one-word transfer within the burst transfer, and burst transfer is suspended. If the last transfer cycle of the burst transfer has already been activated inside the DMAC, execution continues to the end of the transfer even if the DTME bit is cleared. 304 Full Address Mode (Block Transfer Mode): Figure 8-22 shows a transfer example in which TEND output is enabled and word-size full address mode transfer (block transfer mode) is performed from internal 16-bit, 1-state access space to external 16-bit, 2-state access space. DMA read o Address bus RD HWR LWR TEND Bus release DMA write DMA read DMA write DMA dead DMA read DMA write DMA read DMA write DMA dead Block transfer Bus release Last block transfer Bus release Figure 8-22 Example of Full Address Mode (Block Transfer Mode) Transfer A one-block transfer is performed for one transfer request, and after the transfer the bus is released. While the bus is released, one or more bus cycles are inserted by the CPU or DTC. In the transfer end cycle of each block (the cycle in which the transfer counter reaches 0), a onestate DMA dead cycle is inserted after the DMA write cycle. One block is transmitted without interruption. NMI generation does not affect block transfer operation. 305 DREQ Pin Falling Edge Activation Timing: Set the DTA bit for the channel for which the DREQ pin is selected to 1. Figure 8-23 shows an example of DREQ pin falling edge activated normal mode transfer. Bus release o DREQ Address bus DMA control Channel Idle Request DMA read DMA write Bus release DMA read DMA write Bus release Transfer source Transfer destination Transfer source Transfer destination Read Write Idle Request Read Write Idle Request clear period Request clear period Minimum of 2 cycles [1] [2] [3] Minimum of 2 cycles [4] [5] [6] [7] Acceptance resumes Acceptance resumes Acceptance after transfer enabling; the DREQ pin low level is sampled on the rising edge of o, and the request is held. [2] [5] The request is cleared at the next bus break, and activation is started in the DMAC. [3] [6] Start of DMA cycle; DREQ pin high level sampling on the rising edge of o starts. [4] [7] When the DREQ pin high level has been sampled, acceptance is resumed after the write cycle is completed. (As in [1], the DREQ pin low level is sampled on the rising edge of o, and the request is held.) [1] Note: In write data buffer mode, bus breaks from [2] to [7] may be hidden, and not visible. Figure 8-23 Example of DREQ Pin Falling Edge Activated Normal Mode Transfer DREQ pin sampling is performed every cycle, with the rising edge of the next o cycle after the end of the DMABCR write cycle for setting the transfer enabled state as the starting point. When the DREQ pin low level is sampled while acceptance by means of the DREQ pin is possible, the request is held in the DMAC. Then, when activation is initiated in the DMAC, the request is cleared, and DREQ pin high level sampling for edge detection is started. If DREQ pin high level sampling has been completed by the time the DMA write cycle ends, acceptance resumes after the end of the write cycle, DREQ pin low level sampling is performed again, and this operation is repeated until the transfer ends. 306 Figure 8-24 shows an example of DREQ pin falling edge activated block transfer mode transfer. 1 block transfer Bus release o DREQ Address bus DMA control Channel Idle Request Transfer source Transfer destination 1 block transfer DMA Bus dead release DMA read DMA write DMA dead Bus release DMA read DMA write Transfer source Transfer destination Read Write Dead Idle Read Request Write Dead Idle Request clear period Request clear period Minimun of 2 cycles [1] [2] [3] Minimun of 2 cycles [4] [5] [6] [7] Acceptance resumes Acceptance resumes Acceptance after transfer enabling; the DREQ pin low level is sampled on the rising edge of o, and the request is held. [2] [5] The request is cleared at the next bus break, and activation is started in the DMAC. [3] [6] Start of DMA cycle; DREQ pin high level sampling on the rising edge of o starts. [4] [7] When the DREQ pin high level has been sampled, acceptance is resumed after the dead cycle is completed. (As in [1], the DREQ pin low level is sampled on the rising edge of o, and the request is held.) [1] Note: In write data buffer mode, bus breaks from [2] to [7] may be hidden, and not visible. Figure 8-24 Example of DREQ Pin Falling Edge Activated Block Transfer Mode Transfer DREQ pin sampling is performed every cycle, with the rising edge of the next o cycle after the end of the DMABCR write cycle for setting the transfer enabled state as the starting point. When the DREQ pin low level is sampled while acceptance by means of the DREQ pin is possible, the request is held in the DMAC. Then, when activation is initiated in the DMAC, the request is cleared, and DREQ pin high level sampling for edge detection is started. If DREQ pin high level sampling has been completed by the time the DMA dead cycle ends, acceptance resumes after the end of the dead cycle, DREQ pin low level sampling is performed again, and this operation is repeated until the transfer ends. 307 DREQ Level Activation Timing (Normal Mode): Set the DTA bit for the channel for which the DREQ pin is selected to 1. Figure 8-25 shows an example of DREQ level activated normal mode transfer. Bus release o DREQ Address bus DMA control Channel Idle Request DMA read DMA write Bus release DMA read DMA write Bus release Transfer source Transfer destination Transfer source Transfer destination Read Write Idle Request Read Write Idle Request clear period Request clear period Minimum of 2 cycles [1] [2] [3] Minimum of 2 cycles [4] [5] [6] [7] Acceptance resumes Acceptance resumes Acceptance after transfer enabling; the DREQ pin low level is sampled on the rising edge of o, and the request is held. [2] [5] The request is cleared at the next bus break, and activation is started in the DMAC. [3] [6] The DMA cycle is started. [4] [7] Acceptance is resumed after the write cycle is completed. (As in [1], the DREQ pin low level is sampled on the rising edge of o, and the request is held.) [1] Note: In write data buffer mode, bus breaks from [2] to [7] may be hidden, and not visible. Figure 8-25 Example of DREQ Level Activated Normal Mode Transfer DREQ pin sampling is performed every cycle, with the rising edge of the next o cycle after the end of the DMABCR write cycle for setting the transfer enabled state as the starting point. When the DREQ pin low level is sampled while acceptance by means of the DREQ pin is possible, the request is held in the DMAC. Then, when activation is initiated in the DMAC, the request is cleared. After the end of the write cycle, acceptance resumes, DREQ pin low level sampling is performed again, and this operation is repeated until the transfer ends. 308 Figure 8-26 shows an example of DREQ level activated block transfer mode transfer. 1 block transfer Bus release o DREQ Address bus DMA control Channel Idle Request Transfer source Transfer destination 1 block transfer DMA Bus dead release DMA read DMA right DMA dead Bus release DMA read DMA right Transfer source Transfer destination Read Write Dead Idle Read Request Write Dead Idle Request clear period Request clear period Minimum of 2 cycles [1] [2] [3] Minimum of 2 cycles [4] [5] [6] [7] Acceptance resumes Acceptance resumes Acceptance after transfer enabling; the DREQ pin low level is sampled on the rising edge of o, and the request is held. [2] [5] The request is cleared at the next bus break, and activation is started in the DMAC. [3] [6] The DMA cycle is started. [4] [7] Acceptance is resumed after the dead cycle is completed. (As in [1], the DREQ pin low level is sampled on the rising edge of o, and the request is held.) [1] Note: In write data buffer mode, bus breaks from [2] to [7] may be hidden, and not visible. Figure 8-26 Example of DREQ Level Activated Block Transfer Mode Transfer DREQ pin sampling is performed every cycle, with the rising edge of the next o cycle after the end of the DMABCR write cycle for setting the transfer enabled state as the starting point. When the DREQ pin low level is sampled while acceptance by means of the DREQ pin is possible, the request is held in the DMAC. Then, when activation is initiated in the DMAC, the request is cleared. After the end of the dead cycle, acceptance resumes, DREQ pin low level sampling is performed again, and this operation is repeated until the transfer ends. 309 8.5.11 DMAC Bus Cycles (Single Address Mode) Single Address Mode (Read): Figure 8-27 shows a transfer example in which TEND output is enabled and byte-size single address mode transfer (read) is performed from external 8-bit, 2-state access space to an external device. DMA read o Address bus RD DACK TEND DMA read DMA read DMA DMA read dead Bus release Bus release Bus release Bus Last transfer release cycle Bus release Figure 8-27 Example of Single Address Mode (Byte Read) Transfer 310 Figure 8-28 shows a transfer example in which TEND output is enabled and word-size single address mode transfer (read) is performed from external 8-bit, 2-state access space to an external device. DMA read o Address bus RD DACK TEND DMA read DMA read DMA dead Bus release Bus release Bus release Last transfer cycle Bus release Figure 8-28 Example of Single Address Mode (Word Read) Transfer A one-byte or one-word transfer is performed for one transfer request, and after the transfer the bus is released. While the bus is released, one or more bus cycles are inserted by the CPU or DTC. In the transfer end cycle (the cycle in which the transfer counter reaches 0), a one-state DMA dead cycle is inserted after the DMA write cycle. 311 Single Address Mode (Write): Figure 8-29 shows a transfer example in which TEND output is enabled and byte-size single address mode transfer (write) is performed from an external device to external 8-bit, 2-state access space. DMA write o Address bus HWR LWR DACK TEND DMA write DMA write DMA DMA write dead Bus release Bus release Bus release Bus Last transfer release cycle Bus release Figure 8-29 Example of Single Address Mode (Byte Write) Transfer 312 Figure 8-30 shows a transfer example in which TEND output is enabled and word-size single address mode transfer (write) is performed from an external device to external 8-bit, 2-state access space. DMA write o Address bus HWR LWR DACK TEND DMA write DMA write DMA dead Bus release Bus release Bus release Last transfer cycle Bus release Figure 8-30 Example of Single Address Mode (Word Write) Transfer A one-byte or one-word transfer is performed for one transfer request, and after the transfer the bus is released. While the bus is released one or more bus cycles are inserted by the CPU or DTC. In the transfer end cycle (the cycle in which the transfer counter reaches 0), a one-state DMA dead cycle is inserted after the DMA write cycle. 313 DREQ Pin Falling Edge Activation Timing: Set the DTA bit for the channel for which the DREQ pin is selected to 1. Figure 8-31 shows an example of DREQ pin falling edge activated single address mode transfer. Bus release o DREQ Address bus DACK DMA single Bus release DMA single Bus release Transfer source/ destination Transfer source/ destination DMA control Idle Single Idle Single Idle Channel Request Minimum of 2 cycles Request clear period Request Minimum of 2 cycles Request clear period [1] [2] [3] [4] [5] [6] [7] Acceptance resumes [1] Acceptance resumes Acceptance after transfer enabling; the DREQ pin low level is sampled on the rising edge of o, and the request is held. [2] [5] The request is cleared at the next bus break, and activation is started in the DMAC. [3] [6] Start of DMA cycle; DREQ pin high level sampling on the rising edge of o starts. [4] [7] When the DREQ pin high level has been sampled, acceptance is resumed after the single cycle is completed. (As in [1], the DREQ pin low level is sampled on the rising edge of o, and the request is held.) Note: In write data buffer mode, bus breaks from [2] to [7] may be hidden, and not visible. Figure 8-31 Example of DREQ Pin Falling Edge Activated Single Address Mode Transfer DREQ pin sampling is performed every cycle, with the rising edge of the next o cycle after the end of the DMABCR write cycle for setting the transfer enabled state as the starting point. When the DREQ pin low level is sampled while acceptance by means of the DREQ pin is possible, the request is held in the DMAC. Then, when activation is initiated in the DMAC, the request is cleared, and DREQ pin high level sampling for edge detection is started. If DREQ pin high level sampling has been completed by the time the DMA single cycle ends, acceptance resumes after the end of the single cycle, DREQ pin low level sampling is performed again, and this operation is repeated until the transfer ends. 314 DREQ Pin Low Level Activation Timing: Set the DTA bit for the channel for which the DREQ pin is selected to 1. Figure 8-32 shows an example of DREQ pin low level activated single address mode transfer. Bus release o DREQ Address bus DACK DMA single Bus release DMA single Bus release Transfer source/ destination Transfer source/ destination DMA control Idle Single Idle Single Idle Channel Request Minimum of 2 cycles Request clear period Request Minimum of 2 cycles Request clear period [1] [2] [3] [4] [5] [6] [7] Acceptance resumes [1] Acceptance resumes Acceptance after transfer enabling; the DREQ pin low level is sampled on the rising edge of o, and the request is held. [2] [5] The request is cleared at the next bus break, and activation is started in the DMAC. [3] [6] The DMAC cycle is started. [4] [7] Acceptance is resumed after the single cycle is completed. (As in [1], the DREQ pin low level is sampled on the rising edge of o, and the request is held.) Note: In write data buffer mode, bus breaks from [2] to [7] may be hidden, and not visible. Figure 8-32 Example of DREQ Pin Low Level Activated Single Address Mode Transfer DREQ pin sampling is performed every cycle, with the rising edge of the next o cycle after the end of the DMABCR write cycle for setting the transfer enabled state as the starting point. When the DREQ pin low level is sampled while acceptance by means of the DREQ pin is possible, the request is held in the DMAC. Then, when activation is initiated in the DMAC, the request is cleared. After the end of the single cycle, acceptance resumes, DREQ pin low level sampling is performed again, and this operation is repeated until the transfer ends. 315 8.5.12 Write Data Buffer Function DMAC internal-to-external dual address transfers and single address transfers can be executed at high speed using the write data buffer function, enabling system throughput to be improved. When the WDBE bit of BCRL in the bus controller is set to 1, enabling the write data buffer function, dual address transfer external write cycles or single address transfers and internal accesses (on-chip memory or internal I/O registers) are executed in parallel. Internal accesses are independent of the bus master, and DMAC dead cycles are regarded as internal accesses. A low level can always be output from the TEND pin if the bus cycle in which a low level is to be output is an external bus cycle. However, a low level is not output from the TEND pin if the bus cycle in which a low level is to be output from the TEND pin is an internal bus cycle, and an external write cycle is executed in parallel with this cycle. Figure 8-33 shows an example of burst mode transfer from on-chip RAM to external memory using the write data buffer function. DMA read DMA write DMA read DMA write DMA read DMA write DMA read DMA write DMA dead o Internal address Internal read signal External address HWR, LWR TEND Figure 8-33 Example of Dual Address Transfer Using Write Data Buffer Function Figure 8-34 shows an example of single address transfer using the write data buffer function. In this example, the CPU program area is in on-chip memory. 316 DMA read DMA single CPU read DMA single CPU read o Internal address Internal read signal External address RD DACK Figure 8-34 Example of Single Address Transfer Using Write Data Buffer Function When the write data buffer function is activated, the DMAC recognizes that the bus cycle concerned has ended, and starts the next operation. Therefore, DREQ pin sampling is started one state after the start of the DMA write cycle or single address transfer. 8.5.13 DMAC Multi-Channel Operation The DMAC channel priority order is: channel 0 > channel 1, and channel A > channel B. Table 8-13 summarizes the priority order for DMAC channels. Table 8-13 DMAC Channel Priority Order Short Address Mode Channel 0A Channel 0B Channel 1A Channel 1B Channel 1 Low Full Address Mode Channel 0 Priority High 317 If transfer requests are issued simultaneously for more than one channel, or if a transfer request for another channel is issued during a transfer, when the bus is released the DMAC selects the highest-priority channel from among those issuing a request according to the priority order shown in table 8-13. During burst transfer, or when one block is being transferred in block transfer, the channel will not be changed until the end of the transfer. Figure 8-35 shows a transfer example in which transfer requests are issued simultaneously for channels 0A, 0B, and 1. DMA read o Address bus RD HWR LWR DMA control Idle Read Channel 0A Channel 0B Channel 1 Bus release Write DMA write DMA read DMA write DMA read DMA DMA write read Idle Read Write Idle Read Write Read Request clear Request hold Request hold Selection Nonselection Request clear Request hold Bus release Selection Request clear Bus release Channel 1 transfer Channel 0A transfer Channel 0B transfer Figure 8-35 Example of Multi-Channel Transfer 318 8.5.14 Relation between External Bus Requests, Refresh Cycles, the DTC, and the DMAC There can be no break between a DMA cycle read and a DMA cycle write. This means that a refresh cycle, external bus release cycle, or DTC cycle is not generated between the external read and external write in a DMA cycle. In the case of successive read and write cycles, such as in burst transfer or block transfer, a refresh or external bus released state may be inserted after a write cycle. Since the DTC has a lower priority than the DMAC, the DTC does not operate until the DMAC releases the bus. When DMA cycle reads or writes are accesses to on-chip memory or internal I/O registers, these DMA cycles can be executed at the same time as refresh cycles or external bus release. However, simultaneous operation may not be possible when a write buffer is used. 319 8.5.15 NMI Interrupts and DMAC When an NMI interrupt is requested, burst mode transfer in full address mode is interrupted. An NMI interrupt does not affect the operation of the DMAC in other modes. In full address mode, transfer is enabled for a channel when both the DTE bit and the DTME bit are set to 1. With burst mode setting, the DTME bit is cleared when an NMI interrupt is requested. If the DTME bit is cleared during burst mode transfer, the DMAC discontinues transfer on completion of the 1-byte or 1-word transfer in progress, then releases the bus, which passes to the CPU. The channel on which transfer was interrupted can be restarted by setting the DTME bit to 1 again. Figure 8-36 shows the procedure for continuing transfer when it has been interrupted by an NMI interrupt on a channel designated for burst mode transfer. Resumption of transfer on interrupted channel [1] [2] [1] No Check that DTE = 1 and DTME = 0 in DMABCRL Write 1 to the DTME bit. DTE= 1 DTME= 0 Yes Set DTME bit to 1 [2] Transfer continues Transfer ends Figure 8-36 Example of Procedure for Continuing Transfer on Channel Interrupted by NMI Interrupt 320 8.5.16 Forced Termination of DMAC Operation If the DTE bit for the channel currently operating is cleared to 0, the DMAC stops on completion of the 1-byte or 1-word transfer in progress. DMAC operation resumes when the DTE bit is set to 1 again. In full address mode, the same applies to the DTME bit. Figure 8-37 shows the procedure for forcibly terminating DMAC operation by software. Forced termination of DMAC [1] Clear the DTE bit in DMABCRL to 0. If you want to prevent interrupt generation after forced termination of DMAC operation, clear the DTIE bit to 0 at the same time. Clear DTE bit to 0 [1] Forced termination Figure 8-37 Example of Procedure for Forcibly Terminating DMAC Operation 321 8.5.17 Clearing Full Address Mode Figure 8-38 shows the procedure for releasing and initializing a channel designated for full address mode. After full address mode has been cleared, the channel can be set to another transfer mode using the appropriate setting procedure. Clearing full address mode Stop the channel [1] [1] Clear both the DTE bit and the DTME bit in DMABCRL to 0; or wait until the transfer ends and the DTE bit is cleared to 0, then clear the DTME bit to 0. Also clear the corresponding DTIE bit to 0 at the same time. [2] Clear all bits in DMACRA and DMACRB to 0. [3] Clear the FAE bit in DMABCRH to 0. Initialize DMACR [2] Clear FAE bit to 0 [3] Initialization; operation halted Figure 8-38 Example of Procedure for Clearing Full Address Mode 322 8.6 Interrupts The sources of interrupts generated by the DMAC are transfer end and transfer break. Table 8-14 shows the interrupt sources and their priority order. Table 8-14 Interrupt Source Priority Order Interrupt Name DEND0A DEND0B DEND1A DEND1B Interrupt Source Short Address Mode Interrupt due to end of transfer on channel 0A Interrupt due to end of transfer on channel 0B Interrupt due to end of transfer on channel 1A Interrupt due to end of transfer on channel 1B Full Address Mode Interrupt due to end of transfer on channel 0 Interrupt due to break in transfer on channel 0 Interrupt due to end of transfer on channel 1 Interrupt due to break in transfer on channel 1 Low Interrupt Priority Order High Enabling or disabling of each interrupt source is set by means of the DTIE bit for the corresponding channel in DMABCR, and interrupts from each source are sent to the interrupt controller independently. The relative priority of transfer end interrupts on each channel is decided by the interrupt controller, as shown in table 8-14. Figure 8-39 shows a block diagram of a transfer end/transfer break interrupt. An interrupt is always generated when the DTIE bit is set to 1 while DTE bit is cleared to 0. DTE/ DTME Transfer end/transfer break interrupt DTIE Figure 8-39 Block Diagram of Transfer End/Transfer Break Interrupt In full address mode, a transfer break interrupt is generated when the DTME bit is cleared to 0 while DTIEB bit is set to 1. In both short address mode and full address mode, DMABCR should be set so as to prevent the occurrence of a combination that constitutes a condition for interrupt generation during setting. 323 8.7 Usage Notes DMAC Register Access during Operation: Except for forced termination, the operating (including transfer waiting state) channel setting should not be changed. The operating channel setting should only be changed when transfer is disabled. Also, the DMAC register should not be written to in a DMA transfer. DMAC register reads during operation (including the transfer waiting state) are described below. (a) DMAC control starts one cycle before the bus cycle, with output of the internal address. Consequently, MAR is updated in the bus cycle before DMAC transfer. Figure 8-40 shows an example of the update timing for DMAC registers in dual address transfer mode. DMA transfer cycle DMA last transfer cycle DMA dead DMA read o DMA Internal address DMA control DMA register operation Idle DMA write DMA read DMA write Transfer source Read Transfer destination Write Idle Transfer source Read Transfer destination Write Dead Idle [1] [2] [1] [2]' [3] [1] Transfer source address register MAR operation (incremented/decremented/fixed) Transfer counter ETCR operation (decremented) Block size counter ETCR operation (decremented in block transfer mode) [2] Transfer destination address register MAR operation (incremented/decremented/fixed) [2'] Transfer destination address register MAR operation (incremented/decremented/fixed) Block transfer counter ETCR operation (decremented, in last transfer cycle of a block in block transfer mode) [3] Transfer address register MAR restore operation (in block or repeat transfer mode) Transfer counter ETCR restore (in repeat transfer mode) Block size counter ETCR restore (in block transfer mode) Notes: 1. In single address transfer mode, the update timing is the same as [1]. 2. The MAR operation is post-incrementing/decrementing of the DMA internal address value. Figure 8-40 DMAC Register Update Timing 324 (b) If a DMAC transfer cycle occurs immediately after a DMAC register read cycle, the DMAC register is read as shown in figure 8-41. CPU longword read MAR upper word read o DMA internal address DMA control DMA register operation Idle MAR lower word read DMA transfer cycle DMA read DMA write Transfe source Read Transfer destination Write Idle [1] [2] Note: The lower word of MAR is the updated value after the operation in [1]. Figure 8-41 Contention between DMAC Register Update and CPU Read Module Stop: When the MSTPA7 bit in MSTPCR is set to 1, the DMAC clock stops, and the module stop state is entered. However, 1 cannot be written to the MSTPA7 bit if any of the DMAC channels is enabled. This setting should therefore be made when DMAC operation is stopped. When the DMAC clock stops, DMAC register accesses can no longer be made. Since the following DMAC register settings are valid even in the module stop state, they should be invalidated, if necessary, before a module stop. * Transfer end/suspend interrupt (DTE = 0 and DTIE = 1) * TEND pin enable (TEE = 1) * DACK pin enable (FAE = 0 and SAE = 1) Medium-Speed Mode: When the DTA bit is 0, internal interrupt signals specified as DMAC transfer sources are edge-detected. In medium-speed mode, the DMAC operates on a medium-speed clock, while on-chip supporting modules operate on a high-speed clock. Consequently, if the period in which the relevant interrupt source is cleared by the CPU, DTC, or another DMAC channel, and the next interrupt is generated, is less than one state with respect to the DMAC clock (bus master clock), edge detection may not be possible and the interrupt may be ignored. Also, in medium-speed mode, DREQ pin sampling is performed on the rising edge of the mediumspeed clock. 325 Write Data Buffer Function: When the WDBE bit of BCRL in the bus controller is set to 1, enabling the write data buffer function, dual address transfer external write cycles or single address transfers and internal accesses (on-chip memory or internal I/O registers) are executed in parallel. (a) Write Data Buffer Function and DMAC Register Setting If the setting of is changed during execution of an external access by means of the write data buffer function, the external access may not be performed normally. The register that controls external accesses should only be manipulated when external reads, etc., are used with DMAC operation disabled, and the operation is not performed in parallel with external access. (b) Write Data Buffer Function and DMAC Operation Timing The DMAC can start its next operation during external access using the write data buffer function. Consequently, the DREQ pin sampling timing, TEND output timing, etc., are different from the case in which the write data buffer function is disabled. Also, internal bus cycles maybe hidden, and not visible. (c) Write Data Buffer Function and TEND Output A low level is not output from the TEND pin if the bus cycle in which a low level is to be output from the TEND pin is an internal bus cycle, and an external write cycle is executed in parallel with this cycle. Note, for example, that a low level may not be output from the TEND pin if the write data buffer function is used when data transfer is performed between an internal I/O register and on-chip memory. If at least one of the DMAC transfer addresses is an external address, a low level is output from the TEND pin. 326 Figure 8-42 shows an example in which a low level is not output at the TEND pin. DMA read o Internal address Internal read signal Internal write signal External address HWR, LWR TEND Not output External write by CPU, etc. DMA write Figure 8-42 Example in Which Low Level is Not Output at TEND Pin Activation by Falling Edge on DREQ Pin: DREQ pin falling edge detection is performed in synchronization with DMAC internal operations. The operation is as follows: [1] Activation request wait state: Waits for detection of a low level on the DREQ pin, and switches to [2]. [2] Transfer wait state: Waits for DMAC data transfer to become possible, and switches to [3]. [3] Activation request disabled state: Waits for detection of a high level on the DREQ pin, and switches to [1]. After DMAC transfer is enabled, a transition is made to [1]. Thus, initial activation after transfer is enabled is performed by detection of a low level. Activation Source Acceptance: At the start of activation source acceptance, a low level is detected in both DREQ pin falling edge sensing and low level sensing. Similarly, in the case of an internal interrupt, the interrupt request is detected. Therefore, a request is accepted from an internal interrupt or DREQ pin low level that occurs before execution of the DMABCRL write to enable transfer. When the DMAC is activated, take any necessary steps to prevent an internal interrupt or DREQ pin low level remaining from the end of the previous transfer, etc. 327 Internal Interrupt after End of Transfer: When the DTE bit is cleared to 0 by the end of transfer or an abort, the selected internal interrupt request will be sent to the CPU or DTC even if DTA is set to 1. Also, if internal DMAC activation has already been initiated when operation is aborted, the transfer is executed but flag clearing is not performed for the selected internal interrupt even if DTA is set to 1. An internal interrupt request following the end of transfer or an abort should be handled by the CPU as necessary. Channel Re-Setting: To reactivate a number of channels when multiple channels are enabled, use exclusive handling of transfer end interrupts, and perform DMABCR control bit operations exclusively. Note, in particular, that in cases where multiple interrupts are generated between reading and writing of DMABCR, and a DMABCR operation is performed during new interrupt handling, the DMABCR write data in the original interrupt handling routine will be incorrect, and the write may invalidate the results of the operations by the multiple interrupts. Ensure that overlapping DMABCR operations are not performed by multiple interrupts, and that there is no separation between read and write operations by the use of a bit-manipulation instruction. Also, when the DTE and DTME bits are cleared by the DMAC or are written with 0, they must first be read while cleared to 0 before the CPU can write a 1 to them. 328 Section 9 Data Transfer Controller (DTC) (This function is not available in the H8S/2695) 9.1 Overview The H8S/2633 Series includes a data transfer controller (DTC). The DTC can be activated by an interrupt or software, to transfer data. 9.1.1 Features The features of the DTC are: * Transfer possible over any number of channels Transfer information is stored in memory One activation source can trigger a number of data transfers (chain transfer) * Wide range of transfer modes Normal, repeat, and block transfer modes available Incrementing, decrementing, and fixing of source and destination addresses can be selected * Direct specification of 16-Mbyte address space possible 24-bit transfer source and destination addresses can be specified * Transfer can be set in byte or word units * A CPU interrupt can be requested for the interrupt that activated the DTC An interrupt request can be issued to the CPU after one data transfer ends An interrupt request can be issued to the CPU after the specified data transfers have completely ended * Activation by software is possible * Module stop mode can be set The initial setting enables DTC registers to be accessed. DTC operation is halted by setting module stop mode 329 9.1.2 Block Diagram Figure 9-1 shows a block diagram of the DTC. The DTC's register information is stored in the on-chip RAM*. A 32-bit bus connects the DTC to the on-chip RAM (1 kbyte), enabling 32-bit/1-state reading and writing of the DTC register information. Note: * When the DTC is used, the RAME bit in SYSCR must be set to 1. Internal address bus Interrupt controller DTC Register information On-chip RAM DTCERA to DTCERF, DTCERI CPU interrupt request Legend MRA, MRB CRA, CRB SAR DAR DTCERA to DTCERF, DTCERI DTVECR DTC service request : DTC mode registers A and B : DTC transfer count registers A and B : DTC source address register : DTC destination address register : DTC enable registers A to F and I : DTC vector register Figure 9-1 Block Diagram of DTC 330 MRA MRB CRA CRB DAR SAR Interrupt request Control logic DTVECR Internal data bus 9.1.3 Register Configuration Table 9-1 summarizes the DTC registers. Table 9-1 Name DTC mode register A DTC mode register B DTC source address register DTC destination address register DTC transfer count register A DTC transfer count register B DTC enable registers DTC vector register Module stop control register DTC Registers Abbreviation MRA MRB SAR DAR CRA CRB DTCER DTVECR MSTPCRA R/W --* 2 --* 2 --* 2 --* 2 --* 2 --* 2 R/W R/W R/W Initial Value Undefined Undefined Undefined Undefined Undefined Undefined H'00 H'00 H'3F Address* 1 --* 3 --* 3 --* 3 --* 3 --* 3 --* 3 H'FE16 to H'FE1E H'FE1F H'FDE8 Notes: *1 Lower 16 bits of the address. *2 Registers within the DTC cannot be read or written to directly. *3 Register information is located in on-chip RAM addresses H'EBC0 to H'EFBF. It cannot be located in external memory space. When the DTC is used, do not clear the RAME bit in SYSCR to 0. 331 9.2 9.2.1 Bit Register Descriptions DTC Mode Register A (MRA) : 7 SM1 Undefined -- 6 SM0 Undefined -- 5 DM1 Undefined -- 4 DM0 Undefined -- 3 MD1 Undefined -- 2 MD0 Undefined -- 1 DTS Undefined -- 0 Sz Undefined -- Initial value : R/W : MRA is an 8-bit register that controls the DTC operating mode. Bits 7 and 6--Source Address Mode 1 and 0 (SM1, SM0): These bits specify whether SAR is to be incremented, decremented, or left fixed after a data transfer. Bit 7 SM1 0 1 Bit 6 SM0 -- 0 1 Description SAR is fixed SAR is incremented after a transfer (by +1 when Sz = 0; by +2 when Sz = 1) SAR is decremented after a transfer (by -1 when Sz = 0; by -2 when Sz = 1) Bits 5 and 4--Destination Address Mode 1 and 0 (DM1, DM0): These bits specify whether DAR is to be incremented, decremented, or left fixed after a data transfer. Bit 5 DM1 0 1 Bit 4 DM0 -- 0 1 Description DAR is fixed DAR is incremented after a transfer (by +1 when Sz = 0; by +2 when Sz = 1) DAR is decremented after a transfer (by -1 when Sz = 0; by -2 when Sz = 1) 332 Bits 3 and 2--DTC Mode (MD1, MD0): These bits specify the DTC transfer mode. Bit 3 MD1 0 Bit 2 MD0 0 1 1 0 1 Description Normal mode Repeat mode Block transfer mode -- Bit 1--DTC Transfer Mode Select (DTS): Specifies whether the source side or the destination side is set to be a repeat area or block area, in repeat mode or block transfer mode. Bit 1 DTS 0 1 Description Destination side is repeat area or block area Source side is repeat area or block area Bit 0--DTC Data Transfer Size (Sz): Specifies the size of data to be transferred. Bit 0 Sz 0 1 Description Byte-size transfer Word-size transfer 333 9.2.2 Bit DTC Mode Register B (MRB) : 7 CHNE Undefined -- 6 DISEL Undefined -- 5 -- Undefined -- 4 -- Undefined -- 3 -- Undefined -- 2 -- Undefined -- 1 -- Undefined -- 0 -- Undefined -- Initial value: R/W : MRB is an 8-bit register that controls the DTC operating mode. Bit 7--DTC Chain Transfer Enable (CHNE): Specifies chain transfer. With chain transfer, a number of data transfers can be performed consecutively in response to a single transfer request. In data transfer with CHNE set to 1, determination of the end of the specified number of transfers, clearing of the interrupt source flag, and clearing of DTCER is not performed. Bit 7 CHNE 0 1 Description End of DTC data transfer (activation waiting state is entered) DTC chain transfer (new register information is read, then data is transferred) Bit 6--DTC Interrupt Select (DISEL): Specifies whether interrupt requests to the CPU are disabled or enabled after a data transfer. Bit 6 DISEL 0 1 Description After a data transfer ends, the CPU interrupt is disabled unless the transfer counter is 0 (the DTC clears the interrupt source flag of the activating interrupt to 0) After a data transfer ends, the CPU interrupt is enabled (the DTC does not clear the interrupt source flag of the activating interrupt to 0) Bits 5 to 0--Reserved: These bits have no effect on DTC operation in the H8S/2633 Series, and should always be written with 0. 334 9.2.3 Bit DTC Source Address Register (SAR) : 23 22 21 20 19 4 3 2 1 0 Initial value: R/W : Unde- Unde- Unde- Unde- Undefined fined fined fined fined ---------- Unde- Unde- Unde- Unde- Undefined fined fined fined fined ---------- SAR is a 24-bit register that designates the source address of data to be transferred by the DTC. For word-size transfer, specify an even source address. 9.2.4 Bit DTC Destination Address Register (DAR) : 23 22 21 20 19 4 3 2 1 0 Initial value : R/W : Unde- Unde- Unde- Unde- Undefined fined fined fined fined ---------- Unde- Unde- Unde- Unde- Undefined fined fined fined fined ---------- DAR is a 24-bit register that designates the destination address of data to be transferred by the DTC. For word-size transfer, specify an even destination address. 9.2.5 Bit DTC Transfer Count Register A (CRA) : 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Initial value: R/W : Unde- Unde- Unde- Unde- Unde- Unde- Unde- Unde- Unde- Unde- Unde- Unde- Unde- Unde- Unde- Undefined fined fined fined fined fined fined fined fined fined fined fined fined fined fined fined -------------------------------- CRAH CRAL CRA is a 16-bit register that designates the number of times data is to be transferred by the DTC. In normal mode, the entire CRA functions as a 16-bit transfer counter (1 to 65,536). It is decremented by 1 every time data is transferred, and transfer ends when the count reaches H'0000. In repeat mode or block transfer mode, the CRA is divided into two parts: the upper 8 bits (CRAH) and the lower 8 bits (CRAL). CRAH holds the number of transfers while CRAL functions as an 8-bit transfer counter (1 to 256). CRAL is decremented by 1 every time data is transferred, and the contents of CRAH are sent when the count reaches H'00. This operation is repeated. 335 9.2.6 Bit DTC Transfer Count Register B (CRB) : 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Initial value: R/W : Unde- Unde- Unde- Unde- Unde- Unde- Unde- Unde- Unde- Unde- Unde- Unde- Unde- Unde- Unde- Undefined fined fined fined fined fined fined fined fined fined fined fined fined fined fined fined -------------------------------- CRB is a 16-bit register that designates the number of times data is to be transferred by the DTC in block transfer mode. It functions as a 16-bit transfer counter (1 to 65,536) that is decremented by 1 every time data is transferred, and transfer ends when the count reaches H'0000. 9.2.7 Bit DTC Enable Registers (DTCER) : 7 DTCE7 0 R/W 6 DTCE6 0 R/W 5 DTCE5 0 R/W 4 DTCE4 0 R/W 3 DTCE3 0 R/W 2 DTCE2 0 R/W 1 DTCE1 0 R/W 0 DTCE0 0 R/W Initial value: R/W : The DTC enable registers comprise seven 8-bit readable/writable registers, DTCERA to DTCERF and DTCERI, with bits corresponding to the interrupt sources that can control enabling and disabling of DTC activation. These bits enable or disable DTC service for the corresponding interrupt sources. The DTC enable registers are initialized to H'00 by a reset and in hardware standby mode. Bit n--DTC Activation Enable (DTCEn) Bit n DTCEn 0 Description DTC activation by this interrupt is disabled [Clearing conditions] * * 1 When the DISEL bit is 1 and the data transfer has ended When the specified number of transfers have ended (Initial value) DTC activation by this interrupt is enabled [Holding condition] When the DISEL bit is 0 and the specified number of transfers have not ended (n = 7 to 0) A DTCE bit can be set for each interrupt source that can activate the DTC. The correspondence between interrupt sources and DTCE bits is shown in table 9-4, together with the vector number generated for each interrupt controller. 336 For DTCE bit setting, use bit manipulation instructions such as BSET and BCLR for reading and writing. If all interrupts are masked, multiple activation sources can be set at one time by writing data after executing a dummy read on the relevant register. 9.2.8 Bit DTC Vector Register (DTVECR) : 7 0 R/(W)*1 6 0 R/W*2 5 0 R/W*2 4 0 R/W*2 3 0 R/W*2 2 0 R/W*2 1 0 R/W*2 0 0 R/W*2 SWDTE DTVEC6 DTVEC5 DTVEC4 DTVEC3 DTVEC2 DTVEC1 DTVEC0 Initial value: R/W : Notes: *1 Only 1 can be written to the SWDTE bit. *2 Bits DTVEC6 to DTVEC0 can be written to when SWDTE = 0. DTVECR is an 8-bit readable/writable register that enables or disables DTC activation by software, and sets a vector number for the software activation interrupt. DTVECR is initialized to H'00 by a reset and in hardware standby mode. Bit 7--DTC Software Activation Enable (SWDTE): Enables or disables DTC activation by software. Bit 7 SWDTE 0 Description DTC software activation is disabled [Clearing conditions] * * When the DISEL bit is 0 and the specified number of transfers have not ended When 0 s written to the DISEL bit after a software-activated data transfer end interrupt (SWDTEND) request has been sent to the CPU (Initial value) 1 DTC software activation is enabled [Holding conditions] * * * When the DISEL bit is 1 and data transfer has ended When the specified number of transfers have ended During data transfer due to software activation Bits 6 to 0--DTC Software Activation Vectors 6 to 0 (DTVEC6 to DTVEC0): These bits specify a vector number for DTC software activation. The vector address is expressed as H'0400 + ((vector number) << 1). <<1 indicates a one-bit leftshift. For example, when DTVEC6 to DTVEC0 = H'10, the vector address is H'0420. 337 9.2.9 Bit Module Stop Control Register A (MSTPCRA) : 7 MSTPA7 0 R/W 6 MSTPA6 0 R/W 5 MSTPA5 1 R/W 4 MSTPA4 1 R/W 3 MSTPA3 1 R/W 2 MSTPA2 1 R/W 1 MSTPA1 1 R/W 0 MSTPA0 1 R/W Initial value : R/W : MSTPCRA is a 8-bit readable/writable register that performs module stop mode control. When the MSTPA6 bit in MSTPCRA is set to 1, the DTC operation stops at the end of the bus cycle and a transition is made to module stop mode. However, 1 cannot be written in the MSTPA6 bit while the DTC is operating. For details, see section 24.5, Module Stop Mode. MSTPCRA is initialized to H'3F by a power-on reset and in hardware standby mode. It is not initialized in manual reset and software standby mode. Bit 6--Module Stop (MSTPA6): Specifies the DTC module stop mode. Bit 6 MSTPA6 0 1 Description DTC module stop mode cleared DTC module stop mode set (Initial value) 338 9.3 9.3.1 Operation Overview When activated, the DTC reads register information that is already stored in memory and transfers data on the basis of that register information. After the data transfer, it writes updated register information back to memory. Pre-storage of register information in memory makes it possible to transfer data over any required number of channels. Setting the CHNE bit to 1 makes it possible to perform a number of transfers with a single activation. Figure 9-2 shows a flowchart of DTC operation. Start Read DTC vector Next transfer Read register information Data transfer Write register information CHNE=1 No Yes Transfer Counter= 0 or DISEL= 1 No Clear an activation flag Yes Clear DTCER End Interrupt exception handling Figure 9-2 Flowchart of DTC Operation 339 The DTC transfer mode can be normal mode, repeat mode, or block transfer mode. The 24-bit SAR designates the DTC transfer source address and the 24-bit DAR designates the transfer destination address. After each transfer, SAR and DAR are independently incremented, decremented, or left fixed. Table 9-2 outlines the functions of the DTC. Table 9-2 DTC Functions Address Registers Transfer Mode * Normal mode One transfer request transfers one byte or one word Memory addresses are incremented or decremented by 1 or 2 Up to 65,536 transfers possible Repeat mode One transfer request transfers one byte or one word Memory addresses are incremented or decremented by 1 or 2 After the specified number of transfers (1 to 256), the initial state resumes and operation continues Block transfer mode One transfer request transfers a block of the specified size Block size is from 1 to 256 bytes or words Up to 65,536 transfers possible A block area can be designated at either the source or destination Activation Source * * * * * * * IRQ TPU TGI 8-bit timer CMI SCI TXI or RXI A/D converter ADI DMAC DEND Software Transfer Source 24 bits Transfer Destination 24 bits * * 340 9.3.2 Activation Sources The DTC operates when activated by an interrupt or by a write to DTVECR by software. An interrupt request can be directed to the CPU or DTC, as designated by the corresponding DTCER bit. An interrupt becomes a DTC activation source when the corresponding bit is set to 1, and a CPU interrupt source when the bit is cleared to 0. At the end of a data transfer (or the last consecutive transfer in the case of chain transfer), the activation source or corresponding DTCER bit is cleared. Table 9-3 shows activation source and DTCER clearance. The activation source flag, in the case of RXI0, for example, is the RDRF flag of SCI0. Table 9-3 Activation Source and DTCER Clearance When the DISEL Bit Is 1, or when the Specified Number of Transfers Have Ended The SWDTE bit remains set to 1 An interrupt is issued to the CPU Interrupt activation The corresponding DTCER bit remains set to 1 The activation source flag is cleared to 0 The corresponding DTCER bit is cleared to 0 The activation source flag remains set to 1 A request is issued to the CPU for the activation source interrupt When the DISEL Bit Is 0 and the Specified Number of Activation Source Transfers Have Not Ended Software activation The SWDTE bit is cleared to 0 Figure 9-3 shows a block diagram of activation source control. For details see section 5, Interrupt Controller. Source flag cleared Clear controller Clear DTCER Clear request Select On-chip supporting module IRQ interrupt Interrupt request Selection circuit DTC DTVECR Interrupt controller Interrupt mask CPU Figure 9-3 Block Diagram of DTC Activation Source Control 341 When an interrupt has been designated a DTC activation source, existing CPU mask level and interrupt controller priorities have no effect. If there is more than one activation source at the same time, the DTC operates in accordance with the default priorities. 9.3.3 DTC Vector Table Figure 9-4 shows the correspondence between DTC vector addresses and register information. Table 9-4 shows the correspondence between activation and vector addresses. When the DTC is activated by software, the vector address is obtained from: H'0400 + (DTVECR[6:0] << 1) (where << 1 indicates a 1-bit left shift). For example, if DTVECR is H'10, the vector address is H'0420. The DTC reads the start address of the register information from the vector address set for each activation source, and then reads the register information from that start address. The register information can be placed at predetermined addresses in the on-chip RAM. The start address of the register information should be an integral multiple of four. The configuration of the vector address is the same in both normal* and advanced modes, a 2-byte unit being used in both cases. These two bytes specify the lower bits of the address in the on-chip RAM. Note: * Not available in the H8S/2633 Series. DTC vector address Register information start address Register information Chain transfer Figure 9-4 Correspondence between DTC Vector Address and Register Information 342 Table 9-4 Interrupt Sources, DTC Vector Addresses, and Corresponding DTCEs Origin of Interrupt Source Software Vector Number DTVECR Vector Address H'0400+ (DTVECR [6:0] <<1) H'0420 H'0422 H'0424 H'0426 H'0428 H'042A H'042C H'042E H'0438 H'0440 H'0442 H'0444 H'0446 H'0450 H'0452 H'0458 H'045A Interrupt Source Write to DTVECR DTCE* -- Priority High IRQ0 IRQ1 IRQ2 IRQ3 IRQ4 IRQ5 IRQ6 IRQ7 ADI (A/D conversion end) TGI0A (GR0A compare match/ input capture) TGI0B (GR0B compare match/ input capture) TGI0C (GR0C compare match/ input capture) TGI0D (GR0D compare match/ input capture) TGI1A (GR1A compare match/ input capture) TGI1B (GR1B compare match/ input capture) TGI2A (GR2A compare match/ input capture) TGI2B (GR2B compare match/ input capture) External pin 16 17 18 19 20 21 22 23 DTCEA7 DTCEA6 DTCEA5 DTCEA4 DTCEA3 DTCEA2 DTCEA1 DTCEA0 DTCEB6 DTCEB5 DTCEB4 DTCEB3 DTCEB2 DTCEB1 DTCEB0 DTCEC7 DTCEC6 Low A/D TPU channel 0 28 32 33 34 35 TPU channel 1 40 41 TPU channel 2 44 45 343 Interrupt Source TGI3A (GR3A compare match/ input capture) TGI3B (GR3B compare match/ input capture) TGI3C (GR3C compare match/ input capture) TGI3D (GR3D compare match/ input capture) TGI4A (GR4A compare match/ input capture) TGI4B (GR4B compare match/ input capture) TGI5A (GR5A compare match/ input capture) TGI5B (GR5B compare match/ input capture) CMIA0 (compare match A0) CMIB0 (compare match B0) CMIA1 (compare match A1) CMIB1 (compare match B1) DEND0A (channel 0/channel 0A transfer end) DEND0B (channel 0B transfer end) DEND1A (channel 1/channel 1A transfer end) DEND1B (channel 1B transfer end) RXI0 (reception complete 0) TXI0 (transmit data empty 0) RXI1 (reception complete 1) TXI1 (transmit data empty 1) RXI2 (reception complete 2) TXI2 (transmit data empty 2) Origin of Interrupt Source TPU channel 3 Vector Number 48 49 50 51 Vector Address H'0460 H'0462 H'0464 H'0466 H'0470 H'0472 H'0478 H'047A H'0480 H'0482 H'0488 H'048A H'0490 H'0492 H'0494 H'0496 H'04A2 H'04A4 H'04AA H'04AC H'04B2 H'04B4 DTCE* DTCEC5 DTCEC4 DTCEC3 DTCEC2 DTCEC1 DTCEC0 DTCED5 DTCED4 DTCED3 DTCED2 DTCED1 DTCED0 DTCEE7 DTCEE6 DTCEE5 DTCEE4 DTCEE3 DTCEE2 DTCEE1 DTCEE0 DTCEF7 DTCEF6 Priority High TPU channel 4 56 57 TPU channel 5 60 61 8-bit timer channel 0 8-bit timer channel 1 DMAC 64 65 68 69 72 73 74 75 SCI channel 0 SCI channel 1 SCI channel 2 81 82 85 86 89 90 Low 344 Interrupt Source CMIA2 (compare match A2) CMIB2 (compare match B2) CMIA3 (compare match A3) CMIB3 (compare match B3) IICI0 (1-byte transmit/reception complete) IICI1 (1-byte transmit/reception complete) RXI3 (reception complete 3) TXI3 (transmit data empty 3) RXI4 (reception complete 4) TXI4 (transmit data empty 4) Origin of Interrupt Source 8-bit timer channel 2 8-bit timer channel 3 IIC channel 0 (option) IIC channel 1 (option) SCI channel 3 Vector Number 92 93 96 97 100 102 121 122 Vector Address H'04B8 H'04BA H'04C0 H'04C2 H'04C8 H'04CC H'04F2 H'04F4 H'04FA H'04FC DTCE* DTCEF5 DTCEF4 DTCEF3 DTCEF2 DTCEF1 DTCEF0 DTCEI7 DTCEI6 DTCEI5 DTCEI4 Priority High SCI channel 4 125 126 Low Note: * DTCE bits with no corresponding interrupt are reserved, and should be written with 0. 345 9.3.4 Location of Register Information in Address Space Figure 9-5 shows how the register information should be located in the address space. Locate the MRA, SAR, MRB, DAR, CRA, and CRB registers, in that order, from the start address of the register information (contents of the vector address). In the case of chain transfer, register information should be located in consecutive areas. Locate the register information in the on-chip RAM (addresses: H'FFEBC0 to H'FFEFBF). Lower address Register information start address 0 MRA MRB CRA MRA MRB CRA 4 bytes SAR DAR CRB Register information for 2nd transfer in chain transfer 1 2 SAR DAR CRB Register information 3 Chain transfer Figure 9-5 Location of Register Information in Address Space 346 9.3.5 Normal Mode In normal mode, one operation transfers one byte or one word of data. From 1 to 65,536 transfers can be specified. Once the specified number of transfers have ended, a CPU interrupt can be requested. Table 9-5 lists the register information in normal mode and figure 9-6 shows memory mapping in normal mode. Table 9-5 Name DTC source address register DTC destination address register DTC transfer count register A DTC transfer count register B Register Information in Normal Mode Abbreviation SAR DAR CRA CRB Function Designates source address Designates destination address Designates transfer count Not used SAR Transfer DAR Figure 9-6 Memory Mapping in Normal Mode 347 9.3.6 Repeat Mode In repeat mode, one operation transfers one byte or one word of data. From 1 to 256 transfers can be specified. Once the specified number of transfers have ended, the initial state of the transfer counter and the address register specified as the repeat area is restored, and transfer is repeated. In repeat mode the transfer counter value does not reach H'00, and therefore CPU interrupts cannot be requested when DISEL = 0. Table 9-6 lists the register information in repeat mode and figure 9-7 shows memory mapping in repeat mode. Table 9-6 Name DTC source address register DTC destination address register DTC transfer count register AH DTC transfer count register AL DTC transfer count register B Register Information in Repeat Mode Abbreviation SAR DAR CRAH CRAL CRB Function Designates source address Designates destination address Holds number of transfers Designates transfer count Not used SAR or DAR Repeat area Transfer DAR or SAR Figure 9-7 Memory Mapping in Repeat Mode 348 9.3.7 Block Transfer Mode In block transfer mode, one operation transfers one block of data. Either the transfer source or the transfer destination is designated as a block area. The block size is 1 to 256. When the transfer of one block ends, the initial state of the block size counter and the address register specified as the block area is restored. The other address register is then incremented, decremented, or left fixed. From 1 to 65,536 transfers can be specified. Once the specified number of transfers have ended, a CPU interrupt is requested. Table 9-7 lists the register information in block transfer mode and figure 9-8 shows memory mapping in block transfer mode. Table 9-7 Name DTC source address register DTC destination address register DTC transfer count register AH DTC transfer count register AL DTC transfer count register B Register Information in Block Transfer Mode Abbreviation SAR DAR CRAH CRAL CRB Function Designates source address Designates destination address Holds block size Designates block size count Transfer count 349 First block SAR or DAR * * * Block area Transfer DAR or SAR Nth block Figure 9-8 Memory Mapping in Block Transfer Mode 350 9.3.8 Chain Transfer Setting the CHNE bit to 1 enables a number of data transfers to be performed consectutively in response to a single transfer request. SAR, DAR, CRA, CRB, MRA, and MRB, which define data transfers, can be set independently. Figure 9-9 shows the memory map for chain transfer. Source Destination Register information CHNE = 1 DTC vector address Register information start address Register information CHNE = 0 Source Destination Figure 9-9 Chain Transfer Memory Map In the case of transfer with CHNE set to 1, an interrupt request to the CPU is not generated at the end of the specified number of transfers or by setting of the DISEL bit to 1, and the interrupt source flag for the activation source is not affected. 351 9.3.9 Operation Timing Figures 9-10 to 9-12 show an example of DTC operation timing. o DTC activation request DTC request Data transfer Vector read Address Transfer information read Read Write Transfer information write Figure 9-10 DTC Operation Timing (Example in Normal Mode or Repeat Mode) o DTC activation request DTC request Vector read Address Transfer information read Data transfer Read Write Read Write Transfer information write Figure 9-11 DTC Operation Timing (Example of Block Transfer Mode, with Block Size of 2) 352 o DTC activation request DTC request Data transfer Vector read Address Transfer information read Read Write Read Write Data transfer Transfer Transfer information information write read Transfer information write Figure 9-12 DTC Operation Timing (Example of Chain Transfer) 9.3.10 Number of DTC Execution States Table 9-8 lists execution statuses for a single DTC data transfer, and table 9-9 shows the number of states required for each execution status. Table 9-8 DTC Execution Statuses Vector Read I 1 1 1 Register Information Read/Write Data Read J K 6 6 6 1 1 N Data Write L 1 1 N Internal Operations M 3 3 3 Mode Normal Repeat Block transfer N: Block size (initial setting of CRAH and CRAL) 353 Table 9-9 Number of States Required for Each Execution Status OnChip RAM 32 1 SI SJ -- 1 OnChip On-Chip I/O ROM Registers 16 1 1 -- 8 2 -- -- 16 2 -- -- Object to be Accessed Bus width Access states Execution status Vector read Register information read/write Byte data read Word data read Byte data write Word data write External Devices 8 2 4 -- 3 16 2 3 3+m -- 6+2m 2 -- -- SK SK SL SL 1 1 1 1 1 1 1 1 1 2 4 2 4 2 2 2 2 2 4 2 4 3+m 2 3+m 3+m 3+m 3+m 6+2m 2 3+m 2 6+2m 2 Internal operation SM The number of execution states is calculated from the formula below. Note that means the sum of all transfers activated by one activation event (the number in which the CHNE bit is set to 1, plus 1). Number of execution states = I * SI + (J * SJ + K * SK + L * SL ) + M * SM For example, when the DTC vector address table is located in on-chip ROM, normal mode is set, and data is transferred from the on-chip ROM to an internal I/O register, the time required for the DTC operation is 13 states. The time from activation to the end of the data write is 10 states. 354 9.3.11 Procedures for Using DTC Activation by Interrupt: The procedure for using the DTC with interrupt activation is as follows: [1] Set the MRA, MRB, SAR, DAR, CRA, and CRB register information in the on-chip RAM. [2] Set the start address of the register information in the DTC vector address. [3] Set the corresponding bit in DTCER to 1. [4] Set the enable bits for the interrupt sources to be used as the activation sources to 1. The DTC is activated when an interrupt used as an activation source is generated. [5] After the end of one data transfer, or after the specified number of data transfers have ended, the DTCE bit is cleared to 0 and a CPU interrupt is requested. If the DTC is to continue transferring data, set the DTCE bit to 1. Activation by Software: The procedure for using the DTC with software activation is as follows: [1] Set the MRA, MRB, SAR, DAR, CRA, and CRB register information in the on-chip RAM. [2] Set the start address of the register information in the DTC vector address. [3] Check that the SWDTE bit is 0. [4] Write 1 to SWDTE bit and the vector number to DTVECR. [5] Check the vector number written to DTVECR. [6] After the end of one data transfer, if the DISEL bit is 0 and a CPU interrupt is not requested, the SWDTE bit is cleared to 0. If the DTC is to continue transferring data, set the SWDTE bit to 1. When the DISEL bit is 1, or after the specified number of data transfers have ended, the SWDTE bit is held at 1 and a CPU interrupt is requested. 355 9.3.12 Examples of Use of the DTC (1) Normal Mode An example is shown in which the DTC is used to receive 128 bytes of data via the SCI. [1] Set MRA to fixed source address (SM1 = SM0 = 0), incrementing destination address (DM1 = 1, DM0 = 0), normal mode (MD1 = MD0 = 0), and byte size (Sz = 0). The DTS bit can have any value. Set MRB for one data transfer by one interrupt (CHNE = 0, DISEL = 0). Set the SCI RDR address in SAR, the start address of the RAM area where the data will be received in DAR, and 128 (H'0080) in CRA. CRB can be set to any value. [2] Set the start address of the register information at the DTC vector address. [3] Set the corresponding bit in DTCER to 1. [4] Set the SCI to the appropriate receive mode. Set the RIE bit in SCR to 1 to enable the reception complete (RXI) interrupt. Since the generation of a receive error during the SCI reception operation will disable subsequent reception, the CPU should be enabled to accept receive error interrupts. [5] Each time reception of one byte of data ends on the SCI, the RDRF flag in SSR is set to 1, an RXI interrupt is generated, and the DTC is activated. The receive data is transferred from RDR to RAM by the DTC. DAR is incremented and CRA is decremented. The RDRF flag is automatically cleared to 0. [6] When CRA becomes 0 after the 128 data transfers have ended, the RDRF flag is held at 1, the DTCE bit is cleared to 0, and an RXI interrupt request is sent to the CPU. The interrupt handling routine should perform wrap-up processing. 356 (2) Chain Transfer An example of DTC chain transfer is shown in which pulse output is performed using the PPG. Chain transfer can be used to perform pulse output data transfer and PPG output trigger cycle updating. Repeat mode transfer to the PPG's NDR is performed in the first half of the chain transfer, and normal mode transfer to the TPU's TGR in the second half. This is because clearing of the activation source and interrupt generation at the end of the specified number of transfers are restricted to the second half of the chain transfer (transfer when CHNE = 0). [1] Perform settings for transfer to the PPG's NDR. Set MRA to source address incrementing (SM1 = 1, SM0 = 0), fixed destination address (DM1 = DM0 = 0), repeat mode (MD1 = 0, MD0 = 1), and word size (Sz = 1). Set the source side as a repeat area (DTS = 1). Set MRB to chain mode (CHNE = 1, DISEL = 0). Set the data table start address in SAR, the NDRH address in DAR, and the data table size in CRAH and CRAL. CRB can be set to any value. [2] Perform settings for transfer to the TPU's TGR. Set MRA to source address incrementing (SM1 = 1, SM0 = 0), fixed destination address (DM1 = DM0 = 0), normal mode (MD1 = MD0 = 0), and word size (Sz = 1). Set the data table start address in SAR, the TGRA address in DAR, and the data table size in CRA. CRB can be set to any value. [3] Locate the TPU transfer register information consecutively after the NDR transfer register information. [4] Set the start address of the NDR transfer register information to the DTC vector address. [5] Set the bit corresponding to TGIA in DTCER to 1. [6] Set TGRA as an output compare register (output disabled) with TIOR, and enable the TGIA interrupt with TIER. [7] Set the initial output value in PODR, and the next output value in NDR. Set bits in DDR and NDER for which output is to be performed to 1. Using PCR, select the TPU compare match to be used as the output trigger. [8] Set the CST bit in TSTR to 1, and start the TCNT count operation. [9] Each time a TGRA compare match occurs, the next output value is transferred to NDR and the set value of the next output trigger period is transferred to TGRA. The activation source TGFA flag is cleared. [10] When the specified number of transfers are completed (the TPU transfer CRA value is 0), the TGFA flag is held at 1, the DTCE bit is cleared to 0, and a TGIA interrupt request is sent to the CPU. Termination processing should be performed in the interrupt handling routine. 357 (3) Software Activation An example is shown in which the DTC is used to transfer a block of 128 bytes of data by means of software activation. The transfer source address is H'1000 and the destination address is H'2000. The vector number is H'60, so the vector address is H'04C0. [1] Set MRA to incrementing source address (SM1 = 1, SM0 = 0), incrementing destination address (DM1 = 1, DM0 = 0), block transfer mode (MD1 = 1, MD0 = 0), and byte size (Sz = 0). The DTS bit can have any value. Set MRB for one block transfer by one interrupt (CHNE = 0). Set the transfer source address (H'1000) in SAR, the destination address (H'2000) in DAR, and 128 (H'8080) in CRA. Set 1 (H'0001) in CRB. [2] Set the start address of the register information at the DTC vector address (H'04C0). [3] Check that the SWDTE bit in DTVECR is 0. Check that there is currently no transfer activated by software. [4] Write 1 to the SWDTE bit and the vector number (H'60) to DTVECR. The write data is H'E0. [5] Read DTVECR again and check that it is set to the vector number (H'60). If it is not, this indicates that the write failed. This is presumably because an interrupt occurred between steps 3 and 4 and led to a different software activation. To activate this transfer, go back to step 3. [6] If the write was successful, the DTC is activated and a block of 128 bytes of data is transferred. [7] After the transfer, an SWDTEND interrupt occurs. The interrupt handling routine should clear the SWDTE bit to 0 and perform other wrap-up processing. 358 9.4 Interrupts An interrupt request is issued to the CPU when the DTC finishes the specified number of data transfers, or a data transfer for which the DISEL bit was set to 1. In the case of interrupt activation, the interrupt set as the activation source is generated. These interrupts to the CPU are subject to CPU mask level and interrupt controller priority level control. In the case of activation by software, a software activated data transfer end interrupt (SWDTEND) is generated. When the DISEL bit is 1 and one data transfer has ended, or the specified number of transfers have ended, after data transfer ends, the SWDTE bit is held at 1 and an SWDTEND interrupt is generated. The interrupt handling routine should clear the SWDTE bit to 0. When the DTC is activated by software, an SWDTEND interrupt is not generated during a data transfer wait or during data transfer even if the SWDTE bit is set to 1. 9.5 Usage Notes Module Stop: When the MSTPA6 bit in MSTPCRA is set to 1, the DTC clock stops, and the DTC enters the module stop state. However, 1 cannot be written in the MSTPA6 bit while the DTC is operating. On-Chip RAM: The MRA, MRB, SAR, DAR, CRA, and CRB registers are all located in on-chip RAM. When the DTC is used, the RAME bit in SYSCR must not be cleared to 0. DMAC Transfer End Interrupt: When the DTC is activated with a DMAC transfer end interrupt, the DMAC's DTE bit is not controlled by the DTC regardless of the transfer counter and DISEL bit, and write data takes precedence. For this reason, there may be no interrupt generated by the CPU even if the DTC transfer counter is cleared to 0. DTCE Bit Setting: For DTCE bit setting, use bit manipulation instructions such as BSET and BCLR. If all interrupts are masked, multiple activation sources can be set at one time by writing data after executing a dummy read on the relevant register. 359 360 Section 10A I/O Ports (H8S/2633, H8S/2632, H8S/2631, H8S/2633R) 10A.1 Overview The H8S/2633 Series has 10 I/O ports (ports 1, 3, 7 and A to G), and two input-only port (ports 4 and 9). Table 10A-1 summarizes the port functions. The pins of each port also have other functions. Each I/O port includes a data direction register (DDR) that controls input/output, a data register (DR) that stores output data, and a port register (PORT) used to read the pin states. The input-only ports do not have a DR or DDR register. Ports A to E have a built-in pull-up MOS function, and in addition to DR and DDR, have a MOS input pull-up control register (PCR) to control the on/off state of MOS input pull-up. Ports 3, and A to C include an open-drain control register (ODR) that controls the on/off state of the output buffer PMOS. When ports 10 to 13, 70 to 73, and A to G are used as the output pins for expanded bus control signals, they can drive one TTL load plus a 50pF capacitance load. Those ports in other cases, and ports 14 to 17, 3, and 74 to 77, can drive one TTL load and a 30pF capacitance load. All I/O ports can drive Darlington transistors when set to output. See Appendix C, I/O Port Block Diagrams, for a block diagram of each port. 361 Table 10A-1 Port Functions Port Description Pins P17/PO15/TIOCB2/ PWM3/TCLKD P16/PO14/TIOCA2/ PWM2/IRQ1 P15/PO13/TIOCB1/ TCLKC P14/PO12/TIOCA1/ IRQ0 P13/PO11/TIOCD0/ TCLKB/A23 P12/PO10/TIOCC0/ TCLKA/A22 P11/PO9/TIOCB0/ DACK1/A21 P10/PO8/TIOCA0/ DACK0/A20 Mode 4 Mode 5 Mode 6 Mode 7 8-bit I/O port also functioning as DMA controller output pins (DACK0, DACK1), TPU I/O pins (TCLKA, TCLKB, TCLKC, TCLKD, TIOCA0, TIOCB0, TIOCC0, TIOCD0, TIOCA1, TIOCB1, TIOCA2, TIOCB2), PPG output pins (PO15 to PO8), interrupt input pins (IRQ0, IRQ1), and 14-bit PWM output pins (PWM2, PWM3) Port 1 * 8-bit I/O port * Schmitttriggered input (P16, P14) 8-bit I/O port also functioning as DMA controller output pins (DACK0, DACK1), TPU I/O pins (TCLKA, TCLKB, TCLKC, TCLKD, TIOCA0, TIOCB0, TIOCC0, TIOCD0, TIOCA1, TIOCB1, TIOCA2, TIOCB2), PPG output pins (PO15 to PO8), interrupt input pins (IRQ0, IRQ1), 14-bit PWM output pins (PWM2, PWM3), and address outputs (A20 to A23) Port 3 * 8-bit I/O port P37 /TxD4 P36/RxD4 * Open-drain P35/SCK1/SCK4/ output SCL0/IRQ5 capability P34 /RxD1/SDA0 * SchmittP33 /TxD1/SCL1 triggered input (P35, P32 /SCK0/SDA1/IRQ4 P32) P31 /RxD0/IrRxD P30 /TxD0/IrTxD P47 /AN7/DA1 P46 /AN6/DA0 P45 /AN5 P44 /AN4 P43 /AN3 P42 /AN2 P41 /AN1 P40/AN0 8-bit I/O port also functioning as SCI (channel 0, 1, and 4) I/O pins (TxD0, RxD0, SCK0, IrTxD, IrRxD, TxD1, RxD1, SCK1, TxD4, RxD4, SCK4), interrupt input pins (IRQ4, IRQ5), and IIC (channel 0 and 1) I/O pins (SCL0, SDA0, SCL1, SDA1) Port 4 * 8-bit input port 8-bit input port also functioning as A/D converter analog inputs (AN7 to AN0) and D/A converter analog outputs (DA1, DA0) 362 Port Description Pins P77/TxD3 P76/RxD3 P75/TMO3/SCK3 P74/TMO2/MRES P73/TMO1/TEND1/ CS7 P72/TMO0/TEND0/ CS6/SYNCI P71/TMRI23/TMCI23/ DREQ1/CS5 P70/TMRI01/TMCI01/ DREQ0/CS4 Mode 4 Mode 5 Mode 6 Mode 7 8-bit I/O port also functioning as 8-bit timer I/O pins (TMRI01, TMCI01, TMRI23, TMCI23, TMO0, TMO1, TMO2, TMO3), DMAC I/O pins (DREQ0, TEND0, DREQ1, TEND1), the IIC input pin (SYNCI), SCI I/O pins (SCK3, RxD3, TxD3), and the manual reset input pin (MRES) Port 7 * 8-bit I/O port 8-bit I/O port also functioning as 8-bit timer I/O pins (TMRI01, TMCI01, TMRI23, TMCI23, TMO0, TMO1, TMO2, TMO3), DMAC I/O pins (DREQ0, TEND0, DREQ1, TEND1), bus control output pins (CS4 to CS7), the IIC input pin (SYNCI), SCI I/O pins (SCK3, RxD3, TxD3), and the manual reset input pin (MRES) Port 9 * 8-bit input port P97/AN15/DA3 P96/AN14/DA2 P95/AN13 P94/AN12 P93/AN11 P92/AN10 P91/AN9 P90/AN8 8-bit input port also functioning as A/D converter analog inputs (AN15 to AN8) and D/A converter analog outputs (DA3, DA2) Port A * 4-bit I/O port * Built-in MOS input pull-up * Open-drain output capability PA3/A19/SCK2 PA2/A18/RxD2 PA1/A17/TxD2 PA0/A16 4-bit I/O port also functioning as SCI (channel 2) I/O pins (TxD2, RxD2, SCK2) and address outputs (A19 to A16) 4-bit I/O port also functioning as SCI (channel 2) I/O pins (TxD2, RxD2, SCK2) 363 Port Description Pins PB7/A15/TIOCB5 PB6/A14/TIOCA5 PB5/A13/TIOCB4 PB4/A12/TIOCA4 Mode 4 Mode 5 Mode 6 Mode 7 8-bit I/O port also functioning as TPU I/O pins (TIOCB5, TIOCA5, TIOCB4, TIOCA4, TIOCD3, TIOCC3, TIOCB3, TIIOCA3) Port B * 8-bit I/O port * Built-in MOS input pull-up 8-bit I/O port also functioning as TPU I/O pins (TIOCB5, TIOCA5, TIOCB4, TIOCA4, TIOCD3, TIOCC3, TIOCB3, TIIOCA3) and address outputs (A15 to A8) * Open-drain PB3/A11/TIOCD3 output PB2/A10/TIOCC3 capability PB1/A9/TIOCB3 PB0/A8/TIOCA3 Port C * 8-bit I/O port * Built-in MOS input pull-up PC7/A7/PWM1 PC6/A6/PWM0 PC5/A5 PC4/A4 * Open-drain PC3/A3 output PC2/A2 capability PC1/A1 PC0 /A0 Port D * 8-bit I/O port * Built-in MOS input pull-up PD7 /D15 PD6/D14 PD5/D13 PD4/D12 PD3/D11 PD2/D10 PD1/D9 PD0 /D8 Port E * 8-bit I/O port * Built-in MOS input pull-up PE7/D7 PE6/D6 PE5/D5 PE4/D4 PE3/D3 PE2/D2 PE1/D1 PE0 /D0 8-bit I/O port also functioning as 14-bit PWM 8-bit I/O port (channel 1 and 0) output pins (PWM1, PWM0) also functionand address outputs (A7 to A0) ing as 14-bit PWM (channel 1 and 0) output pins (PWM1, PWM0) Data bus input/output I/O port In 8-bit-bus mode: I/O port In 16-bit-bus mode: data bus input/output I/O port 364 Port Description PF7 /o Pins Mode 4 Mode 5 Mode 6 Mode 7 When DDR = 0 (after reset): input port When DDR = 1: o output Port F * 8-bit I/O port When DDR = 0: input port When DDR = 1 (after reset): o output PF6 /AS/LCAS PF5 /RD PF4 /HWR PF3/LWR/ADTRG/ IRQ3 PF2/LCAS/WAIT/ BREQO RD, HWR, LWR outputs ADTRG, IRQ3 input When LCASS = 0: AS output When RMTS2 to RMTS0 = B'001 to B'011, CW2 = 0, and LCASS = 1: LCAS output When WAITE = 0 and BREQOE = 0 (after reset): I/O port When WAITE = 1 and BREQOE = 0: WAIT input When WAITE = 0 and BREQOE = 1: BREQO input When RMTS2 to RMTS0 = B'001 to B'011, CW2 = 0, and LCASS = 0: LCAS output I/O port ADTRG, IRQ3 input I/O port PF1/BACK/BUZZ PF0/BREQ/IRQ2 Port G * 5-bit I/O port When BRLE = 0 (after reset): I/O port When BRLE = 1: BREQ input, BACK output BUZZ output, IRQ2 input BUZZ output IRQ2 input I/O port I/O port PG4 /CS0 When DDR = 0* : input port When DDR = 1* : CS0 output 2 1 PG3 /CS1 PG2 /CS2 PG1 /CS3/OE/IRQ7 PG0 /CAS/IRQ6 When DDR = 0 (after reset): input port When DDR = 1: CS1, CS2, CS3 outputs OE output, IRQ7 input DRAM space set: CAS output Otherwise (after reset): I/O port IRQ6 input I/O port, IRQ7 input I/O port, IRQ6 input Notes: *1 After a reset in mode 6 *2 After a reset in modes 4 or 5 365 10A.2 Port 1 10A.2.1 Overview Port 1 is an 8-bit I/O port. Port 1 pins also function as PPG output pins (PO15 to PO8), TPU I/O pins (TCLKA, TCLKB, TCLKC, TCLKD, TIOCA0, TIOCB0, TIOCC0, TIOCD0, TIOCA1, TIOCB1, TIOCA2, and TIOCB2), DMAC output pins (DACK0 and DACK1), 14-bit PWM output pins (PWM2 and PWM3) external interrupt pins (IRQ0 and IRQ1), and address bus output pins (A23 to A20). Port 1 pin functions change according to the operating mode. Figure 10A-1 shows the port 1 pin configuration. Port 1 pins Pin functions in modes 4 to 6 P17 (I/O) / PO15 (output) / TIOCB2 (I/O) / PWM3 (output) / TCLKD (input) P16 (I/O) / PO14 (output) / TIOCA2 (I/O) / PWM2 (output) / IRQ1 (input) P15 (I/O) / PO13 (output) / TIOCB1 (I/O) / TCLKC (input) P14 (I/O) / PO12 (output) / TIOCA1 (I/O) / IRQ0 (input) Port 1 P13 (I/O) / PO11 (output) / TIOCD0 (I/O) / TCLKB (input) / A23 (output) P12 (I/O) / PO10 (output) / TIOCC0 (I/O) / TCLKA (input) / A22 (output) P11 (I/O) / PO9 (output) / TIOCB0 (I/O) / DACK1 (output) / A21 (output) P10 (I/O) / PO8 (output) / TIOCA0 (I/O) / DACK0 (output) / A20 (output) Pin functions in mode 7 P17 (I/O) / PO15 (output) / TIOCB2 (I/O) / PWM3 (output) / TCLKD (input) P16 (I/O) / PO14 (output) / TIOCA2 (I/O) / PWM2 (output) / IRQ1 (input) P15 (I/O) / PO13 (output) / TIOCB1 (I/O) / TCLKC (input) P14 (I/O) / PO12 (output) / TIOCA1 (I/O) / IRQ0 (input) P13 (I/O) / PO11 (output) / TIOCD0 (I/O) / TCLKB (input) P12 (I/O) / PO10 (output) / TIOCC0 (I/O) / TCLKA (input) P11 (I/O) / PO9 (output) / TIOCB0 (I/O) / DACK1 (output) P10 (I/O) / PO8 (output) / TIOCA0 (I/O) / DACK0 (output) Figure 10A-1 Port 1 Pin Functions 366 10A.2.2 Register Configuration Table 10A-2 shows the port 1 register configuration. Table 10A-2 Port 1 Registers Name Port 1 data direction register Port 1 data register Port 1 register Abbreviation P1DDR P1DR PORT1 R/W W R/W R Initial Value H'00 H'00 Undefined Address* H'FE30 H'FF00 H'FFB0 Note: * Lower 16 bits of the address. Port 1 Data Direction Register (P1DDR) Bit : 7 6 5 4 3 2 1 0 P17DDR P16DDR P15DDR P14DDR P13DDR P12DDR P11DDR P10DDR Initial value : R/W : 0 W 0 W 0 W 0 W 0 W 0 W 0 W 0 W P1DDR is an 8-bit write-only register, the individual bits of which specify input or output for the pins of port 1. P1DDR cannot be read; if it is, an undefined value will be read. Setting a P1DDR bit to 1 makes the corresponding port 1 pin an output pin, while clearing the bit to 0 makes the pin an input pin. P1DDR is initialized to H'00 by a power-on reset, and in hardware standby mode. It retains its prior state by a manual reset or in software standby mode. Because PPG, TPU, and DMAC are initialized at a manual reset, pin states are determined by P1DDR and P1DR. Port 1 Data Register (P1DR) Bit : 7 P17DR Initial value : R/W : 0 R/W 6 P16DR 0 R/W 5 P15DR 0 R/W 4 P14DR 0 R/W 3 P13DR 0 R/W 2 P12DR 0 R/W 1 P11DR 0 R/W 0 P10DR 0 R/W P1DR is an 8-bit readable/writable register that stores output data for the port 1 pins (P17 to P10). P1DR is initialized to H'00 by a power-on reset, and in hardware standby mode. It retains its prior state by a manual reset or in software standby mode. 367 Port 1 Register (PORT1) Bit : 7 P17 Initial value : R/W : --* R 6 P16 --* R 5 P15 --* R 4 P14 --* R 3 P13 --* R 2 P12 --* R 1 P11 --* R 0 P10 --* R Note: * Determined by state of pins P17 to P10. PORT1 is an 8-bit read-only register that shows the pin states. It cannot be written to. Writing of output data for the port 1 pins (P17 to P10) must always be performed on P1DR. If a port 1 read is performed while P1DDR bits are set to 1, the P1DR values are read. If a port 1 read is performed while P1DDR bits are cleared to 0, the pin states are read. After a power-on reset and in hardware standby mode, PORT1 contents are determined by the pin states, as P1DDR and P1DR are initialized. PORT1 retains its prior state by a manual reset or in software standby mode. 368 10A.2.3 Pin Functions Port 1 pins also function as PPG output pins (PO15 to PO8), TPU I/O pins (TCLKA, TCLKB, TCLKC, TCLKD, TIOCA0, TIOCB0, TIOCC0, TIOCD0, TIOCA1, TIOCB1, TIOCA2, and TIOCB2), DMAC output pins (DACK0 and DACK1), external interrupt input pins (IRQ0 and IRQ1), 14-bit PWM output pins (PWM2 and PWM3), and address bus output pins (A23 to A20). Port 1 pin functions are shown in table 10A-3. Table 10A-3 Port 1 Pin Functions Pin P17/PO15/ TIOCB2/PWM3/ TCLKD Selection Method and Pin Functions The pin function is switched as shown below according to the combination of the TPU channel 2 setting (by bits MD3 to MD0 in TMDR2, bits IOB3 to IOB0 in TIOR2, and bits CCLR1 and CCLR0 in TCR2), bits TPSC2 to TPSC0 in TCR0 and TCR5, OEB bit in DACR3, bit NDER15 in NDERH, and bit P17DDR. TPU Channel 2 Setting OEB P17DDR NDER15 Pin function Table Below (1) -- -- -- TIOCB2 output 0 0 -- P17 input Table Below (2) 0 1 0 P17 output 0 1 1 1 -- -- PWM3 output PO15 output TIOCB2 input * 1 TCLKD input * 2 Notes: *1 TIOCB2 input when MD3 to MD0 = B'0000 or B'01xx, and IOB3 = 1. *2 TCLKD input when the setting for either TCR0 or TCR5 is: TPSC2 to TPSC0 = B'111. TCLKD input when channels 2 and 4 are set to phase counting mode. TPU Channel 2 Setting MD3 to MD0 IOB3 to IOB0 (2) B'0000 B'0100 B'1xxx -- -- (1) B'0001 to B'0011 B'0101 to B'0111 -- Output compare output (2) B'0010 -- B'xx00 (2) (1) B'0011 Other than B'xx00 (2) B'0000, B'01xx CCLR1, CCLR0 Output function -- -- -- -- Other than B'10 PWM mode 2 output B'10 -- x: Don't care 369 Pin P16/PO14/ TIOCA2/PWM2/ IRQ1 Selection Method and Pin Functions The pin function is switched as shown below according to the combination of the TPU channel 2 setting (by bits MD3 to MD0 in TMDR2, bits IOA3 to IOA0 in TIOR2, and bits CCLR1 and CCLR0 in TCR2), OEA bit in DACR3, bit NDER14 in NDERH, and bit P16DDR. TPU Channel 2 Setting OEA P16DDR NDER14 Pin function Table Below (1) -- -- -- TIOCA2 output 0 0 -- P16 input Table Below (2) 0 1 0 P16 output 0 1 1 PO14 output 1 -- -- PWM2 output TIOCA2 input * 1 IRQ1 input TPU Channel 2 Setting MD3 to MD0 IOA3 to IOA0 (2) B'0000 B'0100 B'1xxx -- -- (1) (2) B'001x (1) B'0010 (1) B'0011 (2) B'0000, B'01xx B'0001 to B'xx00 B'0011 B'0101 to B'0111 -- Output compare output -- -- -- Other than B'xx00 CCLR1, CCLR0 Output function Other than B'01 PWM mode 2 output B'01 -- PWM mode 1 output* 2 x: Don't care Notes: *1 TIOCA2 input when MD3 to MD0 = B'0000 or B'01xx, and IOA3 = 1. *2 TIOCB2 output is disabled. 370 Pin P15/PO13/ TIOCB1/TCLKC Selection Method and Pin Functions The pin function is switched as shown below according to the combination of the TPU channel 1 setting (by bits MD3 to MD0 in TMDR1, bits IOB3 to IOB0 in TIOR1, and bits CCLR1 and CCLR0 in TCR1), bits TPSC2 to TPSC0 in TCR0, TCR2, TCR4, and TCR5, bit NDER13 in NDERH, and bit P15DDR. TPU Channel 1 Setting P15DDR NDER13 Pin function Table Below (1) -- -- TIOCB1 output 0 -- P15 input Table Below (2) 1 0 P15 output 1 1 PO13 output TIOCB1 input * 1 TCLKC input * 2 Notes: *1 TIOCB1 input when MD3 to MD0 = B'0000 or B'01xx, and IOB3 to IOB0 = B'10xx. *2 TCLKC input when the setting for either TCR0 or TCR2 is: TPSC2 to TPSC0 = B'110; or when the setting for either TCR4 or TCR5 is TPSC2 to TPSC0 = B'101. TCLKC input when channels 2 and 4 are set to phase counting mode. TPU Channel 1 Setting MD3 to MD0 IOB3 to IOB0 (2) B'0000 B'0100 B'1xxx -- (1) B'0001 to B'0011 B'0101 to B'0111 -- (2) B'0010 -- B'xx00 (2) (1) B'0011 Other than B'xx00 (2) B'0000, B'01xx CCLR1, CCLR0 Output function -- -- Other than B'10 PWM mode 2 output B'10 -- Output compare output -- -- -- x: Don't care 371 Pin P14/PO12/ TIOCA1/IRQ0 Selection Method and Pin Functions The pin function is switched as shown below according to the combination of the TPU channel 1 setting (by bits MD3 to MD0 in TMDR1, bits IOA3 to IOA0 in TIOR1, and bits CCLR1 and CCLR0 in TCR1), bit NDER12 in NDERH, and bit P14DDR. TPU Channel 1 Setting P14DDR NDER12 Pin function Table Below (1) -- -- TIOCA1 output 0 -- P14 input Table Below (2) 1 0 P14 output 1 1 PO12 output TIOCA1 input * 1 IRQ0 input TPU Channel 1 Setting MD3 to MD0 IOA3 to IOA0 (2) B'0000 B'0100 B'1xxx -- -- (1) (2) B'001x (1) B'0010 Other than B'xx00 -- PWM mode 1 output* 2 (1) B'0011 (2) B'0000, B'01xx B'0001 to B'xx00 B'0011 B'0101 to B'0111 -- Output compare output -- -- Other than B'xx00 CCLR1, CCLR0 Output function Other than B'01 PWM mode 2 output B'01 -- x: Don't care Notes: *1 TIOCA1 input when MD3 to MD0 = B'0000 or B'01xx, and IOA3 to IOA0 = B'10xx. *2 TIOCB1 output is disabled. 372 Pin P13/PO11/ TIOCD0/TCLKB/ A23 Selection Method and Pin Functions The pin function is switched as shown below according to the combination of the operating mode, and the TPU channel 0 setting (by bits MD3 to MD0 in TMDR0, bits IOD3 to IOD0 in TIOR0L, and bits CCLR2 to CCLR0 in TCR0), bits TPSC2 to TPSC0 in TCR0 to TCR2, bits AE3 to AE0 in PFCR, bit NDER11 in NDERH, and bit P13DDR. Operating mode AE3 to AE0 TPU Channel 0 Setting P13DDR NDER11 Pin function Table Below (1) -- -- TIOCD0 output 0 -- Modes 4 to 6 B'0000 to B'1110 Table Below (2) 1 0 1 1 PO11 output B'1111 -- -- -- A23 output P13 input P13 output TIOCD0 input* 1 TCLKB input* 2 Operating mode AE3 to AE0 TPU Channel 0 Setting P13DDR NDER11 Pin function Table Below (1) -- -- TIOCD0 output 0 -- Mode 7 -- Table Below (2) 1 0 P13 output TIOCD0 input* 1 TCLKB input* 2 1 1 PO11 output P13 input Notes: *1 TIOCD0 input when MD3 to MD0 = B'0000, and IOD3 to IOD0 = B'10xx. *2 TCLKB input when the setting for TCR0 to TCR2 is: TPSC2 to TPSC0 = B'101. TCLKB input when channels 1 and 5 are set to phase counting mode. 373 Pin P13/PO11/ TIOCD0/TCLKB/ A23 (cont) Selection Method and Pin Functions TPU Channel 0 Setting MD3 to MD0 IOD3 to IOD0 (2) B'0000 B'0000 B'0100 B'1xxx -- (1) B'0001 to B'0011 B'0101 to B'0111 -- (2) B'0010 -- (2) B'xx00 (1) B'0011 (2) Other than B'xx00 CCLR2 to CCLR0 Output function -- -- Other than B'110 PWM mode 2 output B'110 -- Output compare output -- -- -- x: Don't care 374 Pin P12/PO10/ TIOCC0/TCLKA/ A22 Selection Method and Pin Functions The pin function is switched as shown below according to the combination of the operating mode, and the TPU channel 0 setting (by bits MD3 to MD0 in TMDR0, bits IOC3 to IOC0 in TIOR0L, and bits CCLR2 to CCLR0 in TCR0), bits TPSC2 to TPSC0 in TCR0 to TCR5, bits AE3 to AE0 in PFCR, bit NDER10 in NDERH, and bit P12DDR. Operating mode AE3 to AE0 TPU Channel 0 Setting P12DDR NDER10 Pin function Table Below (1) -- -- TIOCC0 output 0 -- P12 input Modes 4 to 6 B'0000 to B'1110 Table Below (2) 1 0 P12 output TIOCC0 input* 1 TCLKA input* 2 1 1 PO10 output B'1111 -- -- -- A22 output Operating mode AE3 to AE0 TPU Channel 0 Setting P12DDR NDER10 Pin function Table Below (1) -- -- TIOCC0 output 0 -- Mode 7 -- Table Below (2) 1 0 P12 output TIOCC0 input* 1 TCLKA input* 2 1 1 PO10 output P12 input 375 Pin P12/PO10/ TIOCC0/TCLKA/ A22 (cont) Selection Method and Pin Functions TPU Channel 0 Setting MD3 to MD0 IOC3 to IOC0 (2) B'0000 B'0000 B'0100 B'1xxx -- (1) (2) B'001x (1) B'0010 (1) B'0011 (2) B'0001 to B'xx00 B'0011 B'0101 to B'0111 -- -- -- Other than B'xx00 CCLR2 to CCLR0 Output function Other than B'101 PWM mode 2 output B'101 -- Output compare output -- PWM mode 1 output* 3 -- x: Don't care Notes: *1 TIOCC0 input when MD3 to MD0 = B'0000, and IOC3 to IOC0 = B'10xx. *2 TCLKA input when the setting for TCR0 to TCR5 is: TPSC2 to TPSC0 = B'100. TCLKA input when channels 1 and 5 are set to phase counting mode. *3 TIOCD0 output is disabled. When BFA = 1 or BFB = 1 in TMDR0, output is disabled and setting (2) applies. 376 Pin Selection Method and Pin Functions P11/PO9/TIOCB0/ The pin function is switched as shown below according to the combination of DACK1/A21 the operating mode, and the TPU channel 0 setting (by bits MD3 to MD0 in TMDR0, and bits IOB3 to IOB0 in TIOR0H), bits AE3 to AE0 in PFCR, bit NDER9 in NDERH, SAE1 bit in DMABCRH, and bit P11DDR. Operating mode AE3 to AE0 SAE1 TPU Channel 0 Setting P11DDR NDER9 Pin function Table Below (1) -- -- TIOCB0 output 0 -- P11 input Modes 4 to 6 B'0000 to B'1101 0 Table Below (2) 1 0 P11 output 1 1 PO9 output 1 -- -- -- DACK1 output B'1110 to B'1111 -- -- -- -- A21 output TIOCB0 input * Operating mode AE3 to AE0 SAE1 TPU Channel 0 Setting P11DDR NDER9 Pin function Table Below (1) -- -- TIOCB0 output 0 -- P11 input 0 Mode 7 -- 1 -- 1 1 PO9 output -- -- DACK1 output Table Below (2) 1 0 P11 output TIOCB0 input * Note: * TIOCB0 input when MD3 to MD0 = B'0000, and IOB3 to IOB0 = B'10xx. 377 Pin Selection Method and Pin Functions P11/PO9/TIOCB0/ TPU Channel DACK1/A21 (cont) 0 Setting MD3 to MD0 IOB3 to IOB0 (2) B'0000 B'0000 B'0100 B'1xxx -- (1) B'0001 to B'0011 B'0101 to B'0111 -- (2) B'0010 -- (2) B'xx00 (1) B'0011 (2) Other than B'xx00 CCLR2 to CCLR0 Output function -- -- Other than B'010 PWM mode 2 output B'010 -- Output compare output -- -- -- x: Don't care 378 Pin Selection Method and Pin Functions P10/PO8/TIOCA0/ The pin function is switched as shown below according to the combination of DACK0/A20 the operating mode, and the TPU channel 0 setting (by bits MD3 to MD0 in TMDR0, bits IOA3 to IOA0 in TIOR0H, and bits CCLR2 to CCLR0 in TCR0), bits AE3 to AE0 in PFCR, bit NDER8 in NDERH, SAE0 bit in DMABCRH, and bit P10DDR. Operating mode AE3 to AE0 SAE0 TPU Channel 0 Setting P10DDR NDER8 Pin function Table Below (1) -- -- TIOCA0 output 0 -- P10 input Modes 4 to 6 B'0000 to B'1110 0 Table Below (2) 1 0 P10 output 1 1 PO8 output 1 -- -- -- DACK0 output B'1101 to B'1111 -- -- -- -- A20 output TIOCA0 input * 1 Operating mode AE3 to AE0 SAE0 TPU Channel 0 Setting P10DDR NDER8 Pin function Table Below (1) -- -- TIOCA0 output 0 -- P10 input 0 Mode 7 -- 1 -- 1 1 PO8 output -- -- DACK0 output Table Below (2) 1 0 P10 output TIOCA0 input * 1 379 Pin Selection Method and Pin Functions P10/PO8/TIOCA0/ TPU Channel DACK0/A20 (cont) 0 Setting MD3 to MD0 IOA3 to IOA0 (2) B'0000 B'0000 B'0100 B'1xxx -- (1) (2) B'001x (1) B'0010 (1) B'0011 (2) B'0001 to B'xx00 B'0011 B'0101 to B'0111 -- -- -- Other than B'xx00 CCLR2 to CCLR0 Output function Other than B'001 PWM mode 2 output B'001 -- Output compare output -- PWM mode 1 output* 2 -- x: Don't care Notes: *1 TIOCA0 input when MD3 to MD0 = B'0000, and IOA3 to IOA0 = B'10xx. *2 TIOCB0 output is disabled. 380 10A.3 Port 3 10A.3.1 Overview Port 3 is an 8-bit I/O port. Port 3 is a multi-purpose port for SCI I/O pins (TxD0, RxD0, SCK0, IrTxD, IrRxD, TxD1, RxD1, SCK1, TxD4, RxD4, and SCK4), external interrupt input pins (IRQ4 and IRQ5) and IIC I/O pins (SCL0, SDA0, SCL1, and SDA1). All of the port 3 pin functions have the same operating mode. The configuration for each of the port 3 pins is shown in figure 10A-2. Port 3 pins P37 (I/O) / TxD4 (output) P36 (I/O) / RxD4 (input) P35 (I/O) / SCK1 (I/O) / SCK4 (I/O) / SCL0 (I/O) / IRQ5 (input) Port 3 P34 (I/O) / RxD1 (input) / SDA0 (I/O) P33 (I/O) / TxD1 (input) / SCL1 (I/O) P32 (I/O) / SCK0 (I/O) / SDA1 (I/O) / IRQ4 (input) P31 (I/O) / RxD0 (input) / IrRxD (input) P30 (I/O) / TxD0 (output) / IrTxD (output) Figure 10A-2 Port 3 Pin Functions 10A.3.2 Register Configuration Table 10A-4 shows the configuration of port 3 registers. Table 10A-4 Port 3 Register Configuration Name Port 3 data direction register Port 3 data register Port 3 register Port 3 open drain control register Note: * Lower 16 bits of the address. Abbreviation P3DDR P3DR PORT3 P3ODR R/W W R/W R R/W Initial Value H'00 H'00 Undefined H'00 Address* H'FE32 H'FF02 H'FFB2 H'FE46 381 Port 3 Data Direction Register (P3DDR) Bit : 7 0 W 6 0 W 5 0 W 4 0 W 3 0 W 2 0 W 1 0 W 0 0 W P37DDR P36DDR P35DDR P34DDR P33DDR P32DDR P31DDR P30DDR Initial value : R/W : P3DDR is an 8-bit write-dedicated register, which specifies the I/O for each port 3 pin by bit. Read is disenabled. If a read is carried out, undefined values are read out. By setting P3DDR to 1, the corresponding port 3 pins become output, and be clearing to 0 they become input. P3DDR is initialized to H'00 by a power-on reset and in hardware standby mode. The previous state is maintained by a manual reset and in software standby mode. SCI and IIC are initialized, so the pin state is determined by the specification of P3DDR and P3DR. Port 3 Data Register (P3DR) Bit : 7 P37DR Initial value : R/W : 0 R/W 6 P36DR 0 R/W 5 P35DR 0 R/W 4 P34DR 0 R/W 3 P33DR 0 R/W 2 P32DR 0 R/W 1 P31DR 0 R/W 0 P30DR 0 R/W P3DR is an 8-bit readable/writable register, which stores the output data of port 3 pins (P35 to P30). P3DR is initialized to H'00 by a power-on reset and in hardware standby mode. The previous state is maintained by a manual reset and in software standby mode. 382 Port 3 Register (PORT3) Bit : 7 P37 Initial value : R/W : --* R 6 P36 --* R 5 P35 --* R 4 P34 --* R 3 P33 --* R 2 P32 --* R 1 P31 --* R 0 P30 --* R Note: * Determined by the state of pins P37 to P30. PORT3 is an 8-bit read-dedicated register, which reflects the state of pins. Write is disenabled. Always carry out writing off output data of port 3 pins (P37 to P30) to P3DR without fail. When P3DDR is set to 1, if port 3 is read, the values of P3DR are read. When P3DDR is cleared to 0, if port 3 is read, the states of pins are read out. P3DDR and P3DR are initialized by a power-on reset and in hardware standby mode, so PORT3 is determined by the state of the pins. The previous state is maintained by a manual reset and in software standby mode. Port 3 Open Drain Control Register (P3ODR) Bit : 7 0 R/W 6 0 R/W 5 0 R/W 4 0 R/W 3 0 R/W 2 0 R/W 1 0 R/W 0 0 R/W P37ODR P36ODR P35ODR P34ODR P33ODR P32ODR P31ODR P30ODR Initial value : R/W : P3ODR is an 8-bit readable/writable register, which controls the on/off of port 3 pins (P37 to P30). By setting P3ODR to 1, the port 3 pins become an open drain out, and when cleared to 0 they become CMOS output. P3ODR is initialized to H'00 by a power-on reset and in hardware standby mode. The previous state is maintained by a manual reset and in software standby mode. 383 10A.3.3 Pin Functions The port 3 pins double as SCI I/O input pins (TxD0, RxD0, SCK0, TxD1, RxD1, and SCK1). The functions of port 3 pins are shown in table 10A-5. Table 10A-5 Port 3 Pin Functions Pin P37/TxD4 Selection Method and Pin Functions Switches as follows according to combinations of SCR TE bit of SCI4 and the P37DDR bit. TE P37DDR Pin function 0 P37 input pin 0 1 P37 output pin* 1 -- TxD4 output pin Note: * When P37ODR = 1, it becomes NMOS open drain output. P36/RxD4 Switches as follows according to combinations of SCR RE bit of SCI4 and the P36DDR bit. RE P36DDR Pin function 0 P36 input pin 0 1 P36 output pin* 1 -- RxD4 input pin Note: * When P36ODR = 1, it becomes NMOS open drain output. P35/SCK1/ Switches as follows according to combinations of ICCR0 ICE bit of IIC0, SMR C/A SCK4/SCL0/ bit of SCI1 or SCI4, SCR CKE0 and CKE1 bits, and the P35DDR bit. IRQ5 When used as a SCL0 I/O pin, always be sure to clear the following bits to 0: SMR C/A bits of SCI1 or SCI4, and SCR CKE0 and CKE1 bits. Do not set SCK1 and SCK4 to simultaneous output. The SCL0 output format is NMOS open drain output, enabling direct bus driving. ICE CKE1 (SCI1) CKE1 (SCI4) C/A (SCI1) C/A (SCI4) CKE0 (SCI1) CKE0 (SCI4) P35DD Pin function 0 P35 input pin 0 0 1 0 0 0, 1, 1*2 1, 0, 1*2 -- 0 0 1 1 -- -- 0 0, 1, 1 1, 0, 1 -- -- -- 1 0 0 0 0 0 0 -- P35 SCK1/SCK4 SCK1/SCK4 SCK1/SCK4 SCL0 output pin*1 output pin*1 output pin*1 input pin I/O pin IRQ5 input Notes: *1 Output type is NMOS push-pull. When P35ODR = 1, it becomes NMOS open drain output. *2 SCK1 and SCK4 must not be output simultaneously. 384 Pin P34/RxD1/ SDA0 Selection Method and Pin Functions Switches as follows according to combinations of ICCR0 ICE bit of IIC0, SCR RE bit of SCI1, and the P34DDR bit. The SDA0 output format becomes NMOS open drain output, enabling direct bus driving. ICE RE P34DDR Pin function 0 P34 input pin 0 1 0 1 -- 1 -- -- SDA0 I/O pin P34 output pin* RxD1 input pin Note: * Output type is NMOS push-pull. When P34ODR = 1, it becomes NMOS open drain tray. P33/TxD1/ SCL1 Switches as follows according to combinations of ICCR1 ICE bit of IIC1, SCR TE bit of SCI1 and the P33DDR bit. The SCL1 output format becomes NMOS open drain output, enabling direct bus driving. ICE TE P33DDR Pin function 0 P33 input pin 0 1 0 1 -- 1 -- -- P33 output pin* TxD1 output pin* SCL1 I/O pin* Note: * When P33ODR = 1, it becomes NMOS open drain output. P32/SCK0/ SDA1/IRQ4 Switches as follows according to combinations of ICCR1 ICE bit of IIC1, SMR C/A bit of SCI0, SCR CKE0 and CKE1 bits, and the P32DDR bit. If using as an SDA1 input pin, always set SMR C/A bit of SCI0 and SCR CKE0 and CKE1 bits to 0 without fail. The SDA1 output format becomes NMOS open drain output, enabling direct bus driving. ICE CKE1 C/A CKE0 P32DDR Pin function 0 0 1 0 1 -- 0 1 -- -- 0 1 -- -- -- 1 0 0 0 -- SDA1 I/O pin P32 P32 SCK0 SCK0 SCK0 input pin output pin output pin* output pin* input pin IRQ4 input Note: * When P32ODR = 1, it becomes NMOS open drain output. 385 Pin P31/RxD0/ IrRxD Selection Method and Pin Functions Switches as follows according to combinations of SCR RE bit of SCI0 and the P31DDR bit. RE P31DDR Pin function 0 P31 input pin 0 1 P31 output pin* 1 -- RxD0/IrRxD input pin Note: * When P31ODR = 1, it becomes NMOS open drain output. P30/TxD0/ IrTxD Switches as follows according to combinations of SCR TE bit of SCI0 and the P30DDR bit. TE P30DDR Pin function 0 P30 input pin 0 1 P30 output pin* 1 -- TxD0/IrTxD output pin* Note: * When P30ODR = 1, it becomes NMOS open drain output. 386 10A.4 Port 4 10A.4.1 Overview Port 4 is an 8-bit input-only port. Port 4 pins also function as A/D converter analog input pins (AN0 to AN7) and D/A converter analog output pins (DA0 and DA1). Port 4 pin functions are the same in all operating modes. Figure 10A-3 shows the port 4 pin configuration. Port 4 pins P47 (input) / AN7 (input) / DA1 (output) P46 (input) / AN6 (input) / DA0 (output) P45 (input) / AN5 (input) Port 4 P44 (input) / AN4 (input) P43 (input) / AN3 (input) P42 (input) / AN2 (input) P41 (input) / AN1 (input) P40 (input) / AN0 (input) Figure 10A-3 Port 4 Pin Functions 387 10A.4.2 Register Configuration Table 10A-6 shows the port 4 register configuration. Port 4 is an input-only port, and does not have a data direction register or data register. Table 10A-6 Port 4 Registers Name Port 4 register Abbreviation PORT4 R/W R Initial Value Undefined Address* H'FFB3 Note: * Lower 16 bits of the address. Port 4 Register (PORT4): The pin states are always read when a port 4 read is performed. Bit : 7 P47 Initial value : R/W : --* R 6 P46 --* R 5 P45 --* R 4 P44 --* R 3 P43 --* R 2 P42 --* R 1 P41 --* R 0 P40 --* R Note: * Determined by state of pins P47 to P40. 10A.4.3 Pin Functions Port 4 pins also function as A/D converter analog input pins (AN0 to AN7) and D/A converter analog output pins (DA0 and DA1). 388 10A.5 Port 7 10A.5.1 Overview Port 7 is an 8-bit I/O port. Port 7 is a multipurpose port for the 8-bit timer I/O pins (TMRI01, TMCI01, TMRI23, TMCI23, TMO0, TMO1, TMO2, and TMO3), DMAC I/O pins (DREQ0, TEND0, DREQ1, and TEND1), bus control output pins (CS4 to CS7), IIC input pin (SYNCI), SCI I/O pins (SCK3, RxD3, and TxD3) and manual reset input pin (MRES). The pin functions for P77 to P74 are the same in all operating modes. P73 to P70 pin functions are switched according to operating mode. Figure 10A-4 shows the configuration for port 7 pins. Port 7 pins P77 / TxD3 P76 / RxD3 P75 / TMO3 / SCK3 Port 7 P74 / TMO2 / MRES P73 / TMO1 / TEND1 / CS7 P72 / TMO0 / TEND0 / CS6 / SYNCI P71 / TMRI23 / TMCI23 / DREQ1 / CS5 P70 / TMRI01 / TMCI01 / DREQ0 / CS4 Pin functions in modes 4 to 6 P77 (I/O) / TxD3 (output) P76 (I/O) / RxD3 (input) P75 (I/O) / TMO3 (output) / SCK3 (I/O) P74 (I/O) / TMO2 (output) / MRES (input) P73 (I/O) / TMO1 (output) / TEND1 (output) / CS7 (output) P72 (I/O) / TMO0 (output) / TEND0 (output) / CS6 (output) / SYNCI (input) P71 (I/O) / TMRI23 (input) / TMCI23 (input) / DREQ1 (input) / CS5 (output) P70 (I/O) / TMRI01 (input) / TMCI01 (input) / DREQ0 (input) / CS4 (output) Pin functions in mode 7 P77 (I/O) / TxD3 (output) P76 (I/O) / RxD3 (input) P75 (I/O) / TMO3 (output) / SCK3 (I/O) P74 (I/O) / TMO2 (output) / MRES (input) P73 (I/O) / TMO1 (output) / TEND1 (output) P72 (I/O) / TMO0 (output) / TEND0 (output) / SYNCI (input) P71 (I/O) / TMRI23 (input) / TMCI23 (input) / DREQ1 (input) P70 (I/O) / TMRI01 (input) / TMCI01 (input) / DREQ0 (input) Figure 10A-4 Port 7 Pin Functions 389 10A.5.2 Register Configuration Table 10A-7 shows the port 7 register configuration. Table 10A-7 Port 7 Register Configuration Name Port 7 data direction register Port 7 data register Port 7 register Note: * Lower 16 bits of the address. Abbreviation P7DDR P7DR PORT7 R/W W R/W R Initial Value H'00 H'00 Undefined Address* H'FE36 H'FF06 H'FFB6 Port 7 Data Direction Register (P7DDR) Bit : 7 0 W 6 0 W 5 0 W 4 0 W 3 0 W 2 0 W 1 0 W 0 0 W P77DDR P76DDR P75DDR P74DDR P73DDR P72DDR P71DDR P70DDR Initial value : R/W : P7DDR is an 8-bit write-dedicated register, which specifies the I/O for each port 7 pin by bit. Read is disenabled. If a read is carried out, undefined values are read out. By setting P7DDR to 1, the corresponding port 7 pins become output, and by clearing to 0 they become input. P7DDR is initialized to H'00 by a power-on reset and in hardware standby mode. The previous state is maintained by a manual reset and in software standby mode. DMAC, 8-bit timer and SCI are initialized by a manual reset, so the pin state is determined by the specification of P7DDR and P7DR. 390 Port 7 Data Register (P7DR) Bit : 7 P77DR Initial value : R/W : 0 R/W 6 P76DR 0 R/W 5 P75DR 0 R/W 4 P74DR 0 R/W 3 P73DR 0 R/W 2 P72DR 0 R/W 1 P71DR 0 R/W 0 P70DR 0 R/W P7DR is an 8-bit readable/writable register, which stores the output data of port 7 pins (P77 to P70). P7DR is initialized to H'00 by a power-on reset and in hardware standby mode. The previous state is maintained by a manual reset and in software standby mode. Port 7 Register (PORT7) Bit : 7 P77 Initial value : R/W : --* R 6 P76 --* R 5 P75 --* R 4 P74 --* R 3 P73 --* R 2 P72 --* R 1 P71 --* R 0 P70 --* R Note: * Determined by the state of pins P77 to P70. PORT7 is an 8-bit read-dedicated register, which reflects the state of pins. Write is disenabled. Always carry out writing off output data of port 7 pins (P77 to P70) to P7DR without fail. When P7DDR is set to 1, if port 7 is read, the values of P7DR are read. When P7DDR is cleared to 0, if port 7 is read, the states of pins are read out. P7DDR and P7DR are initialized by a power-on reset and in hardware standby mode, so PORT7 is determined by the state of the pins. The previous state is maintained by a manual reset and in software standby mode. 391 10A.5.3 Pin Functions The pins of port 7 are multipurpose pins which function as 8-bit timer I/O pins, (TMRI01, TMCI01, TMRI23, TMCI23, TMO0, TMO1, TMO2, and TMO3), DMAC I/O pins (DREQ0, TEND0, DREQ1, and TEND1), bus control output pins (CS4 to CS7), IIC input pin (SYNCI), SCI I/O pins (SCK3, RxD3, and TxD3) and manual reset input pin (MRES). Table 10A-8 shows the functions of port 7 pins. Table 10A-8 Port 7 Pin Functions Pin P77/TxD3 Selection Method and Pin Functions Switches as follows according to combinations of SCR TE bit of SCI3, and the P77DDR bit. TE P77DDR Pin function 0 P77 input pin 0 1 P77 output pin 1 -- TxD3 output pin P76/RxD3 Switches as follows according to combinations of SCR RE bit of SCI3 and the P76DDR bit. RE P76DDR Pin function 0 P76 input pin 0 1 P76 output pin 1 -- RxD3 I/O pin P75/TMO3/ SCK3 Switches as follows according to combinations of SMR C/A bit of SCI3, SCR CKE0 and CKE1 bits, TCSR3 OS3 to OS0 bits of the 8-bit timer, and the P75DDR bit. OS3 to OS0 CKE1 C/A CKE0 P75DDR Pin function 0 0 1 0 1 -- 0 1 -- -- All 0 1 -- -- -- SCK3 input pin Any is 1 -- -- -- -- TMO3 output P75 P75 SCK3 SCK3 input pin output pin output pin output pin 392 Pin P74/TMO2/ MRES Selection Method and Pin Functions Switches as follows according to combinations of TCSR2 OS3 to OS0 bits of the 8bit timer, SYSCR MRESE bit and the P74DDR bit. MRESE OS3 to OS0 P74DDR Pin function 0 P74 input pin All 0 1 P74 output pin 0 Any is 1 -- TMO2 output 1 -- -- MRES input pin P73/TMO1/ TEND1/CS7 Switches as follows according to combinations of operating mode and DMATCR TEE1 bit of DMAC, TCSR1 OS3 to OS0 bits of the 8-bit timer, and the P73DDR bit. Operating Mode TEE1 OS3 to OS0 P73DDR Pin function 0 P73 input pin All 0 1 Modes 4 to 6 0 Any is 1 -- 1 -- -- 0 All 0 1 Mode 7 0 Any is 1 -- 1 -- -- CS7 TMO1 TEND1 P73 output output output input pin pin P73 TMO1 TEND1 output output output pin P72/TMO0/ Switches as follows according to combinations of operating mode and DMATCR TEND0/CS6/ TEE0 bit of DMAC, OS3 to OS0 bits of 8-bit timer TCSR0, and the P72DDR bit. SYNCI Operating Modes 4 to 6 Mode 7 Mode TEE0 OS3 to OS0 P72DDR Pin function 0 P72 input pin SYNCI input All 0 1 0 Any is 1 -- 1 -- -- 0 All 0 1 0 Any is 1 -- 1 -- -- CS6 TMO0 TEND1 P72 output output output input pin pin -- P72 TMO0 TEND1 output output output pin SYNCI input 393 Pin Selection Method and Pin Functions P71/TMRI23/ Switches as follows according to operating mode and P71DDR. TMCI23/ Operating Modes 4 to 6 Mode 7 DREQ1/CS5 Mode P71DDR Pin function 0 P71 input Pin DREQ0, TMRI23, TMCI23 input 1 CS5 output -- 0 P71 input pin 1 P71 output pin DREQ0, TMRI23, TMCI23 input P70/TMRI01/ Switches as follows according to operating mode and P70DDR. TMCI01/ Operating Modes 4 to 6 Mode 7 DREQ0/CS4 Mode P70DDR Pin function 0 P70 input pin DREQ0, TMRI01, TMCI01 input 1 CS4 output -- 0 P70 input pin 1 P70 output pin DREQ0, TMRI01, TMCI01 input 394 10A.6 Port 9 10A.6.1 Overview Port 9 is an 8-bit input-only port. Port 9 pins also function as A/D converter analog input pins (AN8 to AN15) and D/A converter analog output pins (DA2 and DA3). Port 9 pin functions are the same in all operating modes. Figure 10A-5 shows the port 9 pin configuration. Port 9 pins P97 (input) / AN15 (input) / DA3 (output) P96 (input) / AN14 (input) / DA2 (output) P95 (input) / AN13 (input) Port 9 P94 (input) / AN12 (input) P93 (input) / AN11 (input) P92 (input) / AN10 (input) P91 (input) / AN9 (input) P90 (input) / AN8 (input) Figure 10A-5 Port 9 Pin Functions 395 10A.6.2 Register Configuration Table 10A-9 shows the port 9 register configuration. Port 9 is an input-only port, and does not have a data direction register or data register. Table 10A-9 Port 9 Registers Name Port 9 register Abbreviation PORT9 R/W R Initial Value Undefined Address* H'FFB8 Note: * Lower 16 bits of the address. Port 9 Register (PORT9): The pin states are always read when a port 9 read is performed. Bit : 7 P97 Initial value : R/W : --* R 6 P96 --* R 5 P95 --* R 4 P94 --* R 3 P93 --* R 2 P92 --* R 1 P91 --* R 0 P90 --* R Note: * Determined by state of pins P97 to P90. 10A.6.3 Pin Functions Port 9 pins are multipurpose pins which function as A/D converter analog input pins (AN8 to AN15) and D/A converter analog output pins (DA2 and DA3). 396 10A.7 Port A 10A.7.1 Overview Port A is a 4-bit I/O port. Port A pins also function as address bus outputs and SCI2 I/O pins (SCK2, RxD2, and TxD2). The pin functions change according to the operating mode. Port A has a built-in MOS input pull-up function that can be controlled by software. Figure 10A-6 shows the port A pin configuration. Port A pins PA3/A19/SCK2 Port A PA2/A18/RxD2 PA1/A17/TxD2 PA0/A16 Pin functions in modes 4 to 6 PA3 (I/O) / A19 (output) / SCK2 (I/O) PA2 (I/O) / A18 (output) / RxD2 (input) PA1 (I/O) / A17 (output) / TxD2 (output) PA0 (I/O) / A16 (output) Pin functions in mode 7 PA3 (I/O) / SCK2 (output) PA2 (I/O) / RxD2 (input) PA1 (I/O) / TxD2 (output) PA0 (I/O) Figure 10A-6 Port A Pin Functions 397 10A.7.2 Register Configuration Table 10A-10 shows the port A register configuration. Table 10A-10 Port A Registers Name Port A data direction register Port A data register Port A register Port A MOS pull-up control register Port A open-drain control register Abbreviation PADDR PADR PORTA PAPCR PAODR R/W W R/W R R/W R/W Initial Value* 2 H'0 H'0 Undefined H'0 H'0 Address* 1 H'FE39 H'FF09 H'FFB9 H'FE40 H'FE47 Notes: *1 Lower 16 bits of the address. *2 Value of bits 3 to 0. Port A Data Direction Register (PADDR) Bit : 7 -- 6 -- 5 -- 4 -- 3 2 1 0 PA3DDR PA2DDR PA1DDR PA0DDR 0 W 0 W 0 W 0 W Initial value : Undefined Undefined Undefined Undefined R/W : -- -- -- -- PADDR is an 8-bit write-only register, the individual bits of which specify input or output for the pins of port A. PADDR cannot be read; if it is, an undefined value will be read. Bits 7 and 6 are reserved; they return an undetermined value if read. PADDR is initialized to H'0 (bits 3 to 0) by a power-on reset, and in hardware standby mode. It retains its prior state by a manual reset or in software standby mode. The OPE bit in SBYCR is used to select whether the address output pins retain their output state or become high-impedance when a transition is made to software standby mode. * Modes 4 to 6 The corresponding port A pins become address outputs in accordance with the setting of bits AE3 to AE0 in PFCR, irrespective of the value of bits PA4DDR to PA0DDR. When pins are not used as address outputs, setting a PADDR bit to 1 makes the corresponding port A pin an output port, while clearing the bit to 0 makes the pin an input port. * Mode 7 Setting a PADDR bit to 1 makes the corresponding port A pin an output port, while clearing the bit to 0 makes the pin an input port. 398 Port A Data Register (PADR) Bit : 7 -- 6 -- 5 -- 4 -- 3 PA3DR 0 R/W 2 PA2DR 0 R/W 1 PA1DR 0 R/W 0 PA0DR 0 R/W Initial value : Undefined Undefined Undefined Undefined R/W : -- -- -- -- PADR is an 8-bit readable/writable register that stores output data for the port A pins (PA7 to PA0). Bits 7 to 4 are reserved; they return an undetermined value if read, and cannot be modified. PADR is initialized to H'0 (bits 3 to 0) by a powr-on reset, and in hardware standby mode. It retains its prior state by a manual reset or in software standby mode. Port A Register (PORTA) Bit : 7 -- 6 -- 5 -- 4 -- 3 PA3 --* R 2 PA2 --* R 1 PA1 --* R 0 PA0 --* R Initial value : Undefined Undefined Undefined Undefined R/W : -- -- -- -- Note: * Determined by state of pins PA3 to PA0. PORTA is an 8-bit read-only register that shows the pin states. It cannot be written to. Writing of output data for the port A pins (PA7 to PA0) must always be performed on PADR. Bits 7 to 4 are reserved; they return an undetermined value if read, and cannot be modified. If a port A read is performed while PADDR bits are set to 1, the PADR values are read. If a port A read is performed while PADDR bits are cleared to 0, the pin states are read. After a power-on reset and in hardware standby mode, PORTA contents are determined by the pin states, as PADDR and PADR are initialized. PORTA retains its prior state by a manual reset or in software standby mode. 399 Port A MOS Pull-Up Control Register (PAPCR) Bit : 7 -- 6 -- 5 -- 4 -- 3 2 1 0 PA3PCR PA2PCR PA1PCR PA0PCR 0 R/W 0 R/W 0 R/W 0 R/W Initial value : Undefined Undefined Undefined Undefined R/W : -- -- -- -- PAPCR is an 8-bit readable/writable register that controls the MOS input pull-up function incorporated into port A on an individual bit basis. Bits 7 to 4 are reserved; they return an undetermined value if read, and cannot be modified. In modes 4 to 6, if a pin is in the input state in accordance with the settings in PFCR, in the SCI's SCMR, SMR, and SCR, and in DDR, setting the corresponding PAPCR bit to 1 turns on the MOS input pull-up for that pin. In mode 7, if a pin is in the input state in accordance with the settings in the SCI's SCMR, SMR, and SCR, and in DDR, setting the corresponding PAPCR bit to 1 turns on the MOS input pull-up for that pin. PAPCR is initialized by a manual reset or to H'0 (bits 3 to 0) by a power-on reset, and in hardware standby mode. It retains its prior state in software standby mode. Port A Open Drain Control Register (PAODR) Bit : 7 -- 6 -- 5 -- 4 -- 3 2 1 0 PA3ODR PA2ODR PA1ODR PA0ODR 0 R/W 0 R/W 0 R/W 0 R/W Initial value : Undefined Undefined Undefined Undefined R/W : -- -- -- -- PAODR is an 8-bit readable/writable register that controls whether PMOS is on or off for each port A pin (PA7 to PA0). Bits 7 to 4 are reserved; they return an undetermined value if read, and cannot be modified. When pins are not address outputs in accordance with the setting of bits AE3 to AE0 in PFCR, setting a PAODR bit makes the corresponding port A pin an NMOS open-drain output, while clearing the bit to 0 makes the pin a CMOS output. PAODR is initialized to H'0 (bits 3 to 0) by a power-on reset, and in hardware standby mode. It retains its prior state by a manual reset or in software standby mode. 400 10A.7.3 Pin Functions Modes 4 to 6: In modes 4 to 6, port A pins function as address outputs according to the setting of AE3 to AE0 in PFCR; when they do not function as address outputs, the pins function as SCI I/O pins and I/O ports. Port A pin functions in modes 4 to 6 are shown in figure 10A-7. PA3 (I/O) / A19 (output) / SCK2 (I/O) Port A PA2 (I/O) / A18 (output) / RxD2 (input) PA1 (I/O) / A17 (output) / TxD2 (output) PA0 (I/O) / A16 (output) Figure 10A-7 Port A Pin Functions (Modes 4 to 6) Mode 7: In mode 7, port A pins function as I/O ports and SCI2 I/O pins (SCK2, TxD2, and RxD2). Input or output can be specified for each pin on an individual bit basis. Setting a PADDR bit to 1 makes the corresponding port A pin an output port, while clearing the bit to 0 makes the pin an input port. Port A pin functions are shown in figure 10A-8. PA3 (I/O) / SCK2 (I/O) Port A PA2 (I/O) / RxD2 (input) PA1 (I/O) / TxD2 (output) PA0 (I/O) Figure 10A-8 Port A Pin Functions (Mode 7) 10A.7.4 MOS Input Pull-Up Function Port A has a built-in MOS input pull-up function that can be controlled by software. MOS input pull-up can be specified as on or off on an individual bit basis. In modes 4 to 6, if a pin is in the input state in accordance with the settings in PFCR, in the SCI's SCMR, SMR, and SCR, and in DDR, setting the corresponding PAPCR bit to 1 turns on the MOS input pull-up for that pin. 401 In mode 7, if a pin is in the input state in accordance with the settings in the SCI's SCMR, SMR, and SCR, and in DDR, setting the corresponding PAPCR bit to 1 turns on the MOS input pull-up for that pin. The MOS input pull-up function is in the off state after a power-on reset, and in hardware standby mode. The prior state is retained by a manual reset or in software standby mode. Table 10A-11 summarizes the MOS input pull-up states. Table 10A-11 MOS Input Pull-Up States (Port A) Pin States Power-On Reset Hardware Standby Mode OFF Manual Reset OFF ON/OFF Software Standby Mode OFF ON/OFF In Other Operations OFF ON/OFF Address output or OFF SCI output Other than above Legend: OFF : MOS input pull-up is always off. ON/OFF : On when PADDR = 0 and PAPCR = 1; otherwise off. 402 10A.8 Port B 10A.8.1 Overview Port B is an 8-bit I/O port. Port B pins also function as TPU I/O pins (TIOCA3, TIOCB3, TIOCC3, TIOCD3, TIOCA4, TIOCB4, TIOCA5, and TIOCB5) and as address outputs; the pin functions change according to the operating mode. Port B has a built-in MOS input pull-up function that can be controlled by software. Figure 10A-9 shows the port B pin configuration. Port B pins PB7/A15/TIOCB5 PB6/A14/TIOCA5 PB5/A13/TIOCB4 PB4/A12/TIOCA4 Port B PB3/A11/TIOCD3 PB2/A10/TIOCC3 PB1/A9 /TIOCB3 PB0/A8 /TIOCA3 Pin functions in modes 4 to 6 PB7 (I/O) / A15 (output) / TIOCB5 (I/O) PB6 (I/O) / A14 (output) / TIOCA5 (I/O) PB5 (I/O) / A13 (output) / TIOCB4 (I/O) PB4 (I/O) / A12 (output) / TIOCA4 (I/O) PB3 (I/O) / A11 (output) / TIOCD3 (I/O) PB2 (I/O) / A10 (output) / TIOCC3 (I/O) PB1 (I/O) / A9 (output) / TIOCB3 (I/O) PB0 (I/O) / A8 (output) / TIOCA3 (I/O) Pin functions in mode 7 PB7 (I/O) / TIOCB5 (I/O) PB6 (I/O) / TIOCA5 (I/O) PB5 (I/O) / TIOCB4 (I/O) PB4 (I/O) / TIOCA4 (I/O) PB3 (I/O) / TIOCD3 (I/O) PB2 (I/O) / TIOCC3 (I/O) PB1 (I/O) / TIOCB3 (I/O) PB0 (I/O) / TIOCA3 (I/O) Figure 10A-9 Port B Pin Functions 403 10A.8.2 Register Configuration Table 10A-12 shows the port B register configuration. Table 10A-12 Port B Registers Name Port B data direction register Port B data register Port B register Port B MOS pull-up control register Port B open-drain control register Note: * Lower 16 bits of the address. Abbreviation PBDDR PBDR PORTB PBPCR PBODR R/W W R/W R R/W R/W Initial Value H'00 H'00 Undefined H'00 H'00 Address* H'FE3A H'FF0A H'FFBA H'FE41 H'FE48 Port B Data Direction Register (PBDDR) Bit : 7 6 5 4 3 2 1 0 PB7DDR PB6DDR PB5DDR PB4DDR PB3DDR PB2DDR PB1DDR PB0DDR Initial value : R/W : 0 W 0 W 0 W 0 W 0 W 0 W 0 W 0 W PBDDR is an 8-bit write-only register, the individual bits of which specify input or output for the pins of port B. PBDDR cannot be read; if it is, an undefined value will be read. PBDDR is initialized to H'00 by a power-on reset, and in hardware standby mode. It retains its prior state by a manual reset or in software standby mode. The OPE bit in SBYCR is used to select whether the address output pins retain their output state or become high-impedance when a transition is made to software standby mode. * Modes 4 to 6 The corresponding port B pins become address outputs in accordance with the setting of bits AE3 to AE0 in PFCR, irrespective of the value of the PBDDR bits. When pins are not used as address outputs, setting a PBDDR bit to 1 makes the corresponding port B pin an output port, while clearing the bit to 0 makes the pin an input port. * Mode 7 Setting a PBDDR bit to 1 makes the corresponding port B pin an output port, while clearing the bit to 0 makes the pin an input port. 404 Port B Data Register (PBDR) Bit : 7 PB7DR Initial value : R/W : 0 R/W 6 PB6DR 0 R/W 5 PB5DR 0 R/W 4 PB4DR 0 R/W 3 PB3DR 0 R/W 2 PB2DR 0 R/W 1 PB1DR 0 R/W 0 PB0DR 0 R/W PBDR is an 8-bit readable/writable register that stores output data for the port B pins (PB7 to PB0). PBDR is initialized to H'00 by a power-on reset, and in hardware standby mode. It retains its prior state by a manual reset or in software standby mode. Port B Register (PORTB) Bit : 7 PB7 Initial value : R/W : --* R 6 PB6 --* R 5 PB5 --* R 4 PB4 --* R 3 PB3 --* R 2 PB2 --* R 1 PB1 --* R 0 PB0 --* R Note: * Determined by state of pins PB7 to PB0. PORTB is an 8-bit read-only register that shows the pin states. It cannot be written to. Writing of output data for the port B pins (PB7 to PB0) must always be performed on PBDR. If a port B read is performed while PBDDR bits are set to 1, the PBDR values are read. If a port B read is performed while PBDDR bits are cleared to 0, the pin states are read. After a power-on reset and in hardware standby mode, PORTB contents are determined by the pin states, as PBDDR and PBDR are initialized. PORTB retains its prior state in software standby mode. 405 Port B MOS Pull-Up Control Register (PBPCR) Bit : 7 6 5 4 3 2 1 0 PB7PCR PB6PCR PB5PCR PB4PCR PB3PCR PB2PCR PB1PCR PB0PCR Initial value : R/W : 0 R/W 0 R/W 0 R/W 0 R/W 0 R/W 0 R/W 0 R/W 0 R/W PBPCR is an 8-bit readable/writable register that controls the MOS input pull-up function incorporated into port B on an individual bit basis. In modes 4 to 6, if a pin is in the input state in accordance with the settings in PFCR, in the TPU's TIOR, and in DDR, setting the corresponding PBPCR bit to 1 turns on the MOS input pull-up for that pin. In mode 7, if a pin is in the input state in accordance with the settings in the TPU's TIOR and in DDR, setting the corresponding PBPCR bit to 1 turns on the MOS input pull-up for that pin. PBPCR is initialized to H'00 by a power-on reset, and in hardware standby mode. It retains its prior state by a manual reset or in software standby mode. Port B Open Drain Control Register (PBODR) Bit : 7 6 5 4 3 2 1 0 PB7ODR PB6ODR PB5ODR PB4ODR PB3ODR PB2ODR PB1ODR PB0ODR Initial value : R/W : 0 R/W 0 R/W 0 R/W 0 R/W 0 R/W 0 R/W 0 R/W 0 R/W PBODR is an 8-bit readable/writable register that controls the PMOS on/off state for each port B pin (PB7 to PB0). When pins are not address outputs in accordance with the setting of bits AE3 to AE0 in PFCR, setting a PBODR bit makes the corresponding port B pin an NMOS open-drain output, while clearing the bit to 0 makes the pin a CMOS output. PBODR is initialized to H'00 by a power-on reset, and in hardware standby mode. It retains its prior state by a manual reset or in software standby mode. 406 10A.8.3 Pin Functions Modes 4 to 6: In modes 4 to 6, the corresponding port B pins become address outputs in accordance with the setting of bits AE3 to AE0 in PFCR. When pins are not used as address outputs, they function as TPU I/O pins and I/O ports. Port B pin functions in modes 4 to 6 are shown in figure 10A-10. PB7 (I/O) / A15 (output) / TIOCB5 (I/O) PB6 (I/O) / A14 (output) / TIOCA5 (I/O) PB5 (I/O) / A13 (output) / TIOCB4 (I/O) Port B PB4 (I/O) / A12 (output) / TIOCA4 (I/O) PB3 (I/O) / A11 (output) / TIOCD3 (I/O) PB2 (I/O) / A10 (output) / TIOCC3 (I/O) PB1 (I/O) / A9 (output) / TIOCB3 (I/O) PB0 (I/O) / A8 (output) / TIOCA3 (I/O) Figure 10A-10 Port B Pin Functions (Modes 4 to 6) Mode 7: In mode 7, port B pins function as I/O ports and TPU I/O pins (TIOCA3, TIOCB3, TIOCC3, TIOCD3, TIOCA4, TIOCB4, TIOCA5, and TIOCB5). Input or output can be specified for each pin on an individual bit basis. Setting a PBDDR bit to 1 makes the corresponding port B pin an output port, while clearing the bit to 0 makes the pin an input port. Port B pin functions in mode 7 are shown in figure 10A-11. PB7 (I/O) / TIOCB5 (I/O) PB6 (I/O) / TIOCA5 (I/O) PB5 (I/O) / TIOCB4 (I/O) Port B PB4 (I/O) / TIOCA4 (I/O) PB3 (I/O) / TIOCD3 (I/O) PB2 (I/O) / TIOCC3 (I/O) PB1 (I/O) / TIOCB3 (I/O) PB0 (I/O) / TIOCA3 (I/O) Figure 10A-11 Port B Pin Functions (Mode 7) 407 10A.8.4 MOS Input Pull-Up Function Port B has a built-in MOS input pull-up function that can be controlled by software. MOS input pull-up can be specified as on or off on an individual bit basis. In modes 4 to 6, if a pin is in the input state in accordance with the settings in PFCR, in the TPU's TIOR, and in DDR, setting the corresponding PBPCR bit to 1 turns on the MOS input pull-up for that pin. In mode 7, if a pin is in the input state in accordance with the settings in the TPU's TIOR and in DDR, setting the corresponding PBPCR bit to 1 turns on the MOS input pull-up for that pin. The MOS input pull-up function is in the off state after a power-on reset, and in hardware standby mode. The prior state is retained by a manual reset or in software standby mode. Table 10A-13 summarizes the MOS input pull-up states. Table 10A-13 MOS Input Pull-Up States (Port B) Pin States Address output or TPU output Other than above Power-On Reset OFF Hardware Standby Mode OFF Manual Reset OFF ON/OFF Software Standby Mode OFF ON/OFF In Other Operations OFF ON/OFF Legend: OFF : MOS input pull-up is always off. ON/OFF : On when PBDDR = 0 and PBPCR = 1; otherwise off. 408 10A.9 Port C 10A.9.1 Overview Port C is an 8-bit I/O port. Port C has a 14-bit PWM output (PWM0 and PWM1) and an address bus output function. The pin functions change according to the operating mode. Port C has a built-in MOS input pull-up function that can be controlled by software. Figure 10A-12 shows the port C pin configuration. Port C pins PC7/A7/PWM1 PC6/A6/PWM0 PC5/A5 Port C PC4/A4 PC3/A3 PC2/A2 PC1/A1 PC0/A0 Pin functions in modes 4 to 6 A7 (output) A6 (output) A5 (output) A4 (output) A3 (output) A2 (output) A1 (output) A0 (output) Pin functions in mode 7 PC7 (I/O) / PWM1 (output) PC6 (I/O) / PWM0 (output) PC5 (I/O) PC4 (I/O) PC3 (I/O) PC2 (I/O) PC1 (I/O) PC0 (I/O) Figure 10A-12 Port C Pin Functions 409 10A.9.2 Register Configuration Table 10A-14 shows the port C register configuration. Table 10A-14 Port C Registers Name Port C data direction register Port C data register Port C register Port C MOS pull-up control register Port C open-drain control register Note: * Lower 16 bits of the address. Abbreviation PCDDR PCDR PORTC PCPCR PCODR R/W W R/W R R/W R/W Initial Value H'00 H'00 Undefined H'00 H'00 Address* H'FE3B H'FF0B H'FFBB H'FE42 H'FE49 Port C Data Direction Register (PCDDR) Bit : 7 6 5 4 3 2 1 0 PC7DDR PC6DDR PC5DDR PC4DDR PC3DDR PC2DDR PC1DDR PC0DDR Initial value : R/W : 0 W 0 W 0 W 0 W 0 W 0 W 0 W 0 W PCDDR is an 8-bit write-only register, the individual bits of which specify input or output for the pins of port C. PCDDR cannot be read; if it is, an undefined value will be read. PCDDR is initialized to H'00 by a power-on reset, and in hardware standby mode. It retains its prior state by a manual reset or in software standby mode. The OPE bit in SBYCR is used to select whether the address output pins retain their output state or become high-impedance when the mode is changed to software standby mode. * Modes 4 and 5 The corresponding port C pins are address outputs irrespective of the value of the PCDDR bits. * Mode 6 Setting a PCDDR bit to 1 makes the corresponding port C pin an address output, while clearing the bit to 0 makes the pin an input port. * Mode 7 Setting a PCDDR bit to 1 makes the corresponding port C pin an output port, while clearing the bit to 0 makes the pin an input port. 410 Port C Data Register (PCDR) Bit : 7 PC7DR Initial value : R/W : 0 R/W 6 PC6DR 0 R/W 5 PC5DR 0 R/W 4 PC4DR 0 R/W 3 PC3DR 0 R/W 2 PC2DR 0 R/W 1 PC1DR 0 R/W 0 PC0DR 0 R/W PCDR is an 8-bit readable/writable register that stores output data for the port C pins (PC7 to PC0). PCDR is initialized to H'00 by a power-on reset, and in hardware standby mode. It retains its prior state by a manual reset or in software standby mode. Port C Register (PORTC) Bit : 7 PC7 Initial value : R/W : --* R 6 PC6 --* R 5 PC5 --* R 4 PC4 --* R 3 PC3 --* R 2 PC2 --* R 1 PC1 --* R 0 PC0 --* R Note: * Determined by state of pins PC7 to PC0. PORTC is an 8-bit read-only register that shows the pin states. It cannot be written to. Writing of output data for the port C pins (PC7 to PC0) must always be performed on PCDR. If a port C read is performed while PCDDR bits are set to 1, the PCDR values are read. If a port C read is performed while PCDDR bits are cleared to 0, the pin states are read. After a power-on reset and in hardware standby mode, PORTC contents are determined by the pin states, as PCDDR and PCDR are initialized. PORTC retains its prior state by a manual reset or in software standby mode. 411 Port C MOS Pull-Up Control Register (PCPCR) Bit : 7 6 5 4 3 2 1 0 PC7PCR PC6PCR PC5PCR PC4PCR PC3PCR PC2PCR PC1PCR PC0PCR Initial value : R/W : 0 R/W 0 R/W 0 R/W 0 R/W 0 R/W 0 R/W 0 R/W 0 R/W PCPCR is an 8-bit readable/writable register that controls the MOS input pull-up function incorporated into port C on an individual bit basis. In modes 6 and 7, if PCPCR is set to 1 when the port is in the input state in accordance with the settings of DACR and PCDDR in PWM, the MOS input pull-up is set to ON. PCPCR is initialized to H'00 by a power-on reset, and in hardware standby mode. It retains its prior state by a manual reset or in software standby mode. Port C Open Drain Control Register (PCODR) Bit : 7 0 R/W 6 0 R/W 5 0 R/W 4 0 R/W 3 0 R/W 2 0 R/W 1 0 R/W 0 0 R/W PC7ODR PC6ODR PC5ODR PC4ODR PC3ODR PC2ODR PC1ODR PC0ODR Initial value : R/W : PCDDR is an 8-bit read/write register and controls PMOS on/off of each pin (PC7 to PC0) of port C. If PCODR is set to 1 by setting AE3 to AE0 in PFCR in mode other than address output mode, port C pins function as NMOS open drain outputs and when the setting is cleared to 0, the pins function as CMOS outputs. PCODR is initialized to H'00 in power-on reset mode or hardware standby mode. PCODR retains the last state in manual reset mode or software standby mode. 412 10A.9.3 Pin Functions for Each Mode (1) Modes 4 and 5 In modes 4 and 5, port C pins function as address outputs automatically. Figure 10A-13 shows the port C pin functions. A7 (output) A6 (output) A5 (output) Port C A4 (output) A3 (output) A2 (output) A1 (output) A0 (output) Figure 10A-13 Port C Pin Functions (Modes 4 and 5) (2) Mode 6 In mode 6, port C pints function as address outputs or input ports and I/O can be specified in bit units. When each bit in PCDDR is set to 1, the corresponding pin functions as an address output and when the bit cleared to 0, the pin functions as a PWM output and an input port. Figure 10A-14 shows the port C pin functions. PCDDR= 1 A7 (output) A6 (output) A5 (output) Port C A4 (output) A3 (output) A2 (output) A1 (output) A0 (output) PCDDR= 0 PC7 (input) / PWM1 (output) PC6 (input) / PWM0 (output) PC5 (input) PC4 (input) PC3 (input) PC2 (input) PC1 (input) PC0 (input) Figure 10A-14 Port C Pin Functions (Mode 6) 413 (3) Mode 7 In mode 7, port C pins function as PWM outputs and I/O ports and I/O can be specified for each pin in bit units. When each bit in PCDDR is set to 1, the corresponding pin functions as an output port and when the bit is cleared to 0, the pin functions as an input port. Figure 10A-15 shows the port C pin functions. PC7 (I/O) / PWM1 (output) PC6 (I/O) / PWM0 (output) PC5 (I/O) Port C PC4 (I/O) PC3 (I/O) PC2 (I/O) PC1 (I/O) PC0 (I/O) Figure 10A-15 Port C Pin Functions (Mode 7) 414 10A.9.4 MOS Input Pull-Up Function Port C has a built-in MOS input pull-up function that can be controlled by software. This MOS input pull-up function can be used in modes 6 and 7, and can be specified as on or off on an individual bit basis. In modes 6 and 7, when PCPCR is set to 1 in the input state by setting of DACR and PCDDR, the MOS input pull-up is set to ON. The MOS input pull-up function is in the off state after a power-on reset, and in hardware standby mode. The prior state is retained by a manual reset or in software standby mode. Table 10A-15 summarizes the MOS input pull-up states. Table 10A-15 MOS Input Pull-Up States (Port C) Pin States Address output or PWM output Other than above Power-On Reset OFF Hardware Standby Mode OFF Manual Reset OFF ON/OFF Software Standby Mode OFF ON/OFF In Other Operations OFF ON/OFF Legend: OFF : MOS input pull-up is always off. ON/OFF : On when PCDDR = 0 and PCPCR = 1; otherwise off. 415 10A.10 Port D 10A.10.1 Overview Port D is an 8-bit I/O port. Port D has a data bus I/O function, and the pin functions change according to the operating mode. Port D has a built-in MOS input pull-up function that can be controlled by software. Figure 10A-16 shows the port D pin configuration. Port D pins PD7 / D15 PD6 / D14 PD5 / D13 Port D PD4 / D12 PD3 / D11 PD2 / D10 PD1/ D9 PD0/ D8 Pin functions in modes 4 to 6 D15 (I/O) D14 (I/O) D13 (I/O) D12 (I/O) D11 (I/O) D10 (I/O) D9 D8 (I/O) (I/O) Pin functions in mode 7 PD7 (I/O) PD6 (I/O) PD5 (I/O) PD4 (I/O) PD3 (I/O) PD2 (I/O) PD1 (I/O) PD0 (I/O) Figure 10A-16 Port D Pin Functions 416 10A.10.2 Register Configuration Table 10A-16 shows the port D register configuration. Table 10A-16 Port D Registers Name Port D data direction register Port D data register Port D register Port D MOS pull-up control register Note: * Lower 16 bits of the address. Abbreviation PDDDR PDDR PORTD PDPCR R/W W R/W R R/W Initial Value H'00 H'00 Undefined H'00 Address* H'FE3C H'FF0C H'FFBC H'FE43 Port D Data Direction Register (PDDDR) Bit : 7 6 5 4 3 2 1 0 PD7DDR PD6DDR PD5DDR PD4DDR PD3DDR PD2DDR PD1DDR PD0DDR Initial value : R/W : 0 W 0 W 0 W 0 W 0 W 0 W 0 W 0 W PDDDR is an 8-bit write-only register, the individual bits of which specify input or output for the pins of port D. PDDDR cannot be read; if it is, an undefined value will be read. PDDDR is initialized to H'00 by a power-on reset, and in hardware standby mode. It retains its prior state by a manual reset or in software standby mode. * Modes 4 to 6 The input/output direction specification by PDDDR is ignored, and port D is automatically designated for data I/O. * Mode 7 Setting a PDDDR bit to 1 makes the corresponding port D pin an output port, while clearing the bit to 0 makes the pin an input port. 417 Port D Data Register (PDDR) Bit : 7 PD7DR Initial value : R/W : 0 R/W 6 PD6DR 0 R/W 5 PD5DR 0 R/W 4 PD4DR 0 R/W 3 PD3DR 0 R/W 2 PD2DR 0 R/W 1 PD1DR 0 R/W 0 PD0DR 0 R/W PDDR is an 8-bit readable/writable register that stores output data for the port D pins (PD7 to PD0). PDDR is initialized to H'00 by a power-on reset, and in hardware standby mode. It retains its prior state by a manual reset or in software standby mode. Port D Register (PORTD) Bit : 7 PD7 Initial value : R/W : --* R 6 PD6 --* R 5 PD5 --* R 4 PD4 --* R 3 PD3 --* R 2 PD2 --* R 1 PD1 --* R 0 PD0 --* R Note: * Determined by state of pins PD7 to PD0. PORTD is an 8-bit read-only register that shows the pin states. It cannot be written to. Writing of output data for the port D pins (PD7 to PD0) must always be performed on PDDR. If a port D read is performed while PDDDR bits are set to 1, the PDDR values are read. If a port D read is performed while PDDDR bits are cleared to 0, the pin states are read. After a power-on reset and in hardware standby mode, PORTD contents are determined by the pin states, as PDDDR and PDDR are initialized. PORTD retains its prior state by a manual reset or in software standby mode. 418 Port D MOS Pull-Up Control Register (PDPCR) Bit : 7 6 5 4 3 2 1 0 PD7PCR PD6PCR PD5PCR PD4PCR PD3PCR PD2PCR PD1PCR PD0PCR Initial value : R/W : 0 R/W 0 R/W 0 R/W 0 R/W 0 R/W 0 R/W 0 R/W 0 R/W PDPCR is an 8-bit readable/writable register that controls the MOS input pull-up function incorporated into port D on an individual bit basis. When a PDDDR bit is cleared to 0 (input port setting) in mode 7, setting the corresponding PDPCR bit to 1 turns on the MOS input pull-up for the corresponding pin. PDPCR is initialized to H'00 by a power-on reset, and in hardware standby mode. It retains its prior state by a manual reset or in software standby mode. 10A.10.3 Pin Functions Modes 4 to 6: In modes 4 to 6, port D pins are automatically designated as data I/O pins. Port D pin functions in modes 4 to 6 are shown in figure 10A-17. D15 (I/O) D14 (I/O) D13 (I/O) Port D D12 (I/O) D11 (I/O) D10 (I/O) D9 D8 (I/O) (I/O) Figure 10A-17 Port D Pin Functions (Modes 4 to 6) Mode 7: In mode 7, port D pins function as I/O ports. Input or output can be specified for each pin on an individual bit basis. Setting a PDDDR bit to 1 makes the corresponding port D pin an output port, while clearing the bit to 0 makes the pin an input port. 419 Port D pin functions in mode 7 are shown in figure 10A-18. PD7 (I/O) PD6 (I/O) PD5 (I/O) Port D PD4 (I/O) PD3 (I/O) PD2 (I/O) PD1 (I/O) PD0 (I/O) Figure 10A-18 Port D Pin Functions (Mode 7) 10A.10.4 MOS Input Pull-Up Function Port D has a built-in MOS input pull-up function that can be controlled by software. This MOS input pull-up function can be used in mode 7, and can be specified as on or off on an individual bit basis. When a PDDDR bit is cleared to 0 in mode 7, setting the corresponding PDPCR bit to 1 turns on the MOS input pull-up for that pin. The MOS input pull-up function is in the off state after a power-on reset, and in hardware standby mode. The prior state is retained by a manual reset or in software standby mode. Table 10A-17 summarizes the MOS input pull-up states. Table 10A-17 MOS Input Pull-Up States (Port D) Modes 4 to 6 7 Power-On Reset OFF Hardware Standby Mode OFF Manual Reset OFF ON/OFF Software Standby Mode OFF ON/OFF In Other Operations OFF ON/OFF Legend: OFF : MOS input pull-up is always off. ON/OFF : On when PDDDR = 0 and PDPCR = 1; otherwise off. 420 10A.11 Port E 10A.11.1 Overview Port E is an 8-bit I/O port. Port E has a data bus I/O function, and the pin functions change according to the operating mode and whether 8-bit or 16-bit bus mode is selected. Port E has a built-in MOS input pull-up function that can be controlled by software. Figure 10A-19 shows the port E pin configuration. Port E pins PE7/ D7 PE6/ D6 PE5/ D5 Port E PE4/ D4 PE3/ D3 PE2/ D2 PE1/ D1 PE0/ D0 Pin functions in modes 4 to 6 PE7 (I/O) / D7 (I/O) PE6 (I/O) / D6 (I/O) PE5 (I/O) / D5 (I/O) PE4 (I/O) / D4 (I/O) PE3 (I/O) / D3 (I/O) PE2 (I/O) / D2 (I/O) PE1 (I/O) / D1 (I/O) PE0 (I/O) / D0 (I/O) Pin functions in mode 7 PE7 (I/O) PE6 (I/O) PE5 (I/O) PE4 (I/O) PE3 (I/O) PE2 (I/O) PE1 (I/O) PE0 (I/O) Figure 10A-19 Port E Pin Functions 421 10A.11.2 Register Configuration Table 10A-18 shows the port E register configuration. Table 10A-18 Port E Registers Name Port E data direction register Port E data register Port E register Port E MOS pull-up control register Note: * Lower 16 bits of the address. Abbreviation PEDDR PEDR PORTE PEPCR R/W W R/W R R/W Initial Value H'00 H'00 Undefined H'00 Address* H'FE3D H'FF0D H'FFBD H'FE44 Port E Data Direction Register (PEDDR) Bit : 7 0 W 6 0 W 5 0 W 4 0 W 3 0 W 2 0 W 1 0 W 0 0 W PE7DDR PE6DDR PE5DDR PE4DDR PE3DDR PE2DDR PE1DDR PE0DDR Initial value : R/W : PEDDR is an 8-bit write-only register, the individual bits of which specify input or output for the pins of port E. PEDDR cannot be read; if it is, an undefined value will be read. PEDDR is initialized to H'00 by a power-on reset, and in hardware standby mode. It retains its prior state by a manual reset or in software standby mode. * Modes 4 to 6 When 8-bit bus mode has been selected, port E pins function as I/O ports. Setting a PEDDR bit to 1 makes the corresponding port E pin an output port, while clearing the bit to 0 makes the pin an input port. When 16-bit bus mode has been selected, the input/output direction specification by PEDDR is ignored, and port E is designated for data I/O. For details of 8-bit and 16-bit bus modes, see section 7, Bus Controller. * Mode 7 Setting a PEDDR bit to 1 makes the corresponding port E pin an output port, while clearing the bit to 0 makes the pin an input port. 422 Port E Data Register (PEDR) Bit : 7 PE7DR Initial value : R/W : 0 R/W 6 PE6DR 0 R/W 5 PE5DR 0 R/W 4 PE4DR 0 R/W 3 PE3DR 0 R/W 2 PE2DR 0 R/W 1 PE1DR 0 R/W 0 PE0DR 0 R/W PEDR is an 8-bit readable/writable register that stores output data for the port E pins (PE7 to PE0). PEDR is initialized to H'00 by a power-on reset, and in hardware standby mode. It retains its prior state by a manual reset or in software standby mode. Port E Register (PORTE) Bit : 7 PE7 Initial value : R/W : --* R 6 PE6 --* R 5 PE5 --* R 4 PE4 --* R 3 PE3 --* R 2 PE2 --* R 1 PE1 --* R 0 PE0 --* R Note: * Determined by state of pins PE7 to PE0. PORTE is an 8-bit read-only register that shows the pin states. It cannot be written to. Writing of output data for the port E pins (PE7 to PE0) must always be performed on PEDR. If a port E read is performed while PEDDR bits are set to 1, the PEDR values are read. If a port E read is performed while PEDDR bits are cleared to 0, the pin states are read. After a power-on reset and in hardware standby mode, PORTE contents are determined by the pin states, as PEDDR and PEDR are initialized. PORTE retains its prior state by a manual reset or in software standby mode. 423 Port E MOS Pull-Up Control Register (PEPCR) Bit : 7 6 5 4 3 2 1 0 PE7PCR PE6PCR PE5PCR PE4PCR PE3PCR PE2PCR PE1PCR PE0PCR Initial value : R/W : 0 R/W 0 R/W 0 R/W 0 R/W 0 R/W 0 R/W 0 R/W 0 R/W PEPCR is an 8-bit readable/writable register that controls the MOS input pull-up function incorporated into port E on an individual bit basis. When a PEDDR bit is cleared to 0 (input port setting) with 8-bit bus mode selected in modes 4, 5, or 6, or in mode 7, setting the corresponding PEPCR bit to 1 turns on the MOS input pull-up for the corresponding pin. PEPCR is initialized to H'00 by a power-on reset, and in hardware standby mode. It retains its prior state by a manual reset or in software standby mode. 10A.11.3 Pin Functions Modes 4 to 6: In modes 4 to 6, when 8-bit access is designated and 8-bit bus mode is selected, port E pins are automatically designated as I/O ports. Setting a PEDDR bit to 1 makes the corresponding port E pin an output port, while clearing the bit to 0 makes the pin an input port. When 16-bit bus mode is selected, the input/output direction specification by PEDDR is ignored, and port E is designated for data I/O. Port E pin functions in modes 4 to 6 are shown in figure 10A-20. 8-bit bus mode PE7 (I/O) PE6 (I/O) PE5 (I/O) Port E PE4 (I/O) PE3 (I/O) PE2 (I/O) PE1 (I/O) PE0 (I/O) 16-bit bus mode D7 (I/O) D6 (I/O) D5 (I/O) D4 (I/O) D3 (I/O) D2 (I/O) D1 (I/O) D0 (I/O) Figure 10A-20 Port E Pin Functions (Modes 4 to 6) 424 Mode 7: In mode 7, port E pins function as I/O ports. Input or output can be specified for each pin on a bit-by-bit basis. Setting a PEDDR bit to 1 makes the corresponding port E pin an output port, while clearing the bit to 0 makes the pin an input port. Port E pin functions in mode 7 are shown in figure 10A-21. PE7 (I/O) PE6 (I/O) PE5 (I/O) Port E PE4 (I/O) PE3 (I/O) PE2 (I/O) PE1 (I/O) PE0 (I/O) Figure 10A-21 Port E Pin Functions (Mode 7) 10A.11.4 MOS Input Pull-Up Function Port E has a built-in MOS input pull-up function that can be controlled by software. This MOS input pull-up function can be used in modes 4 to 6 when 8-bit bus mode is selected, or in mode 7, and can be specified as on or off on an individual bit basis. When a PEDDR bit is cleared to 0 in modes 4 to 6 when 8-bit bus mode is selected, or in mode 7, setting the corresponding PEPCR bit to 1 turns on the MOS input pull-up for that pin. The MOS input pull-up function is in the off state after a power-on reset, and in hardware standby mode. The prior state is retained by a manual reset or in software standby mode. Table 10A-19 summarizes the MOS input pull-up states. Table 10A-19 MOS Input Pull-Up States (Port E) Modes 7 4 to 6 8-bit bus 16-bit bus OFF OFF OFF Power-On Reset OFF Hardware Standby Mode OFF Manual Reset ON/OFF Software Standby Mode ON/OFF In Other Operations ON/OFF Legend: OFF : MOS input pull-up is always off. ON/OFF : On when PEDDR = 0 and PEPCR = 1; otherwise off. 425 10A.12 Port F 10A.12.1 Overview Port F is an 8-bit I/O port. Port F pins also function as external interrupt input pins (IRQ2 and IRQ3), BUZZ output pin, A/D trigger input pin (ADTRG), bus control signal input/output pins (AS, RD, HWR, LWR, LCAS, WAIT, BREQO, BREQ, and BACK) and the system clock (o) output pin. Figure 10A-22 shows the port F pin configuration. Port F pins PF7/ o PF6 /AS/LCAS PF5 /RD Port F PF4 /HWR PF3 /LWR/ADTRG/IRQ3 PF2 /LCAS/ WAIT/ BREQO PF1 /BACK/ BUZZ PF0 /BREQ/IRQ2 Pin functions in modes 4 to 6 PF7 (input) / o (output) AS (output) / LCAS (output) RD (output) HWR (output) PF3 (I/O) / LWR (output) / ADTRG (input) / IRQ3 (input) PF2 (I/O) / LCAS (output) / WAIT (input) / BREQO (output) PF1 (I/O) / BACK (output) / BUZZ (output) PF0 (I/O) / BREQ (input) / IRQ2 (input) Pin functions in mode 7 PF7 (input) / o (output) PF6 (I/O) PF5 (I/O) PF4 (I/O) PF3 (I/O) / ADTRG (input) / IRQ3 (input) PF2 (I/O) PF1 (I/O) / BUZZ (output) PF0 (I/O) / IRQ2 (input) Figure 10A-22 Port F Pin Functions 426 10A.12.2 Register Configuration Table 10A-20 shows the port F register configuration. Table 10A-20 Port F Registers Name Port F data direction register Port F data register Port F register Abbreviation PFDDR PFDR PORTF R/W W R/W R Initial Value H'80/H'00* 2 H'00 Undefined Address* 1 H'FE3E H'FF0E H'FFBE Notes: *1 Lower 16 bits of the address. *2 Initial value depends on the mode. Port F Data Direction Register (PFDDR) Bit : 7 6 5 4 3 2 1 0 PF7DDR PF6DDR PF5DDR PF4DDR PF3DDR PF2DDR PF1DDR PF0DDR Modes 4 to 6 Initial value : R/W Mode 7 Initial value : R/W : 0 W 0 W 0 W 0 W 0 W 0 W 0 W 0 W : 1 W 0 W 0 W 0 W 0 W 0 W 0 W 0 W PFDDR is an 8-bit write-only register, the individual bits of which specify input or output for the pins of port F. PFDDR cannot be read; if it is, an undefined value will be read. PFDDR is initialized by a power-on reset, and in hardware standby mode, to H'80 in modes 4 to 6, and to H'00 in mode 7. It retains its prior state by a manual reset or in software standby mode. The OPE bit in SBYCR is used to select whether the bus control output pins retain their output state or become high-impedance when a transition is made to software standby mode. * Modes 4 to 6 Pin PF7 functions as the o output pin when the corresponding PFDDR bit is set to 1, and as an input port when the bit is cleared to 0. The input/output direction specified by PFDDR is ignored for pins PF6 to PF3, which are automatically designated as bus control outputs (AS, RD, HWR, and LWR). PF6 functions as a bus control output (LCAS) by setting of the bus controller. 427 Pins PF2 to PF0 are designated as bus control input/output pins (LCAS, WAIT, BREQO, BACK, and BREQ) by means of bus controller settings. At other times, setting a PFDDR bit to 1 makes the corresponding port F pin an output port, while clearing the bit to 0 makes the pin an input port. * Mode 7 Setting a PFDDR bit to 1 makes the corresponding port F pin PF6 to PF0 an output port, or in the case of pin PF7, the o output pin. Clearing the bit to 0 makes the pin an input port. Port F Data Register (PFDR) Bit : 7 PF7DR Initial value : R/W : 0 R/W 6 PF6DR 0 R/W 5 PF5DR 0 R/W 4 PF4DR 0 R/W 3 PF3DR 0 R/W 2 PF2DR 0 R/W 1 PF1DR 0 R/W 0 PF0DR 0 R/W PFDR is an 8-bit readable/writable register that stores output data for the port F pins (PF7 to PF0). PFDR is initialized to H'00 by a power-on reset, and in hardware standby mode. It retains its prior state by a manual reset or in software standby mode. Port F Register (PORTF) Bit : 7 PF7 Initial value : R/W : --* R 6 PF6 --* R 5 PF5 --* R 4 PF4 --* R 3 PF3 --* R 2 PF2 --* R 1 PF1 --* R 0 PF0 --* R Note: * Determined by state of pins PF7 to PF0. PORTF is an 8-bit read-only register that shows the pin states. It cannot be written to. Writing of output data for the port F pins (PF7 to PF0) must always be performed on PFDR. If a port F read is performed while PFDDR bits are set to 1, the PFDR values are read. If a port F read is performed while PFDDR bits are cleared to 0, the pin states are read. After a power-on reset and in hardware standby mode, PORTF contents are determined by the pin states, as PFDDR and PFDR are initialized. PORTF retains its prior state by a manual reset or in software standby mode. 428 10A.12.3 Pin Functions Port F pins also function as external interrupt input pins (IRQ2 and IRQ3), BUZZ output pin, A/D trigger input pin (ADTRG), bus control signal input/output pins (AS, RD, HWR, LWR, LCAS, WAIT, BREQO, BREQ, and BACK) and the system clock (o) output pin. The pin functions differ between modes 4 to 6, and mode 7. Port F pin functions are shown in table 10A-21. Table 10A-21 Port F Pin Functions Pin PF7/o Selection Method and Pin Functions The pin function is switched as shown below according to bit PF7DDR. PF7DDR Pin function 0 PF7 input pin 1 o output pin PF6/AS/LCAS The pin function is switched as shown below according to the combination of the operating mode and bits RMTS2 to RMTS0, LCASS, BREQOE, WAITE, ABW5 to ABW2, and PF2DDR. Operating Mode LCASS PF6DDR Pin function 0 -- AS output pin Modes 4 to 6 1* -- LCAS output pin 0 Mode 7 -- 1 PF6 input pin PF6 output pin Note: * Restricted to RMTS2 to RMTS0=B'001 to B'011, DRAM space 16-bit access in modes 4 to 6 only PF5/RD The pin function is switched as shown below according to the operating mode and bit PF5DDR. Operating Mode PF5DDR Pin function Modes 4 to 6 -- RD output pin 0 PF5 input pin Mode 7 1 PF5 output pin PF4/HWR The pin function is switched as shown below according to the operating mode and bit PF4DDR. Operating Mode PF4DDR Pin function Modes 4 to 6 -- HWR output pin 0 PF4 input pin Mode 7 1 PF4 output pin 429 Pin Selection Method and Pin Functions PF3/LWR/ADTRG/ The pin function is switched as shown below according to the operating mode, IRQ3 the bus mode, A/D converter bits TRGS1 and TRGS0, and bit PF3DDR. Operating mode Bus mode PF3DDR Pin function 16-bit bus mode -- Modes 4 to 6 8-bit bus mode 0 1 0 Mode 7 -- 1 PF3 output pin LWR output PF3 input pin pin PF3 output PF3 input pin pin ADTRG input pin* 1 IRQ3 input pin* 2 Notes: *1 ADTRG input when TRGS0 = TRGS1 = 1. *2 When used as an external interrupt input pin, do not use as an I/O pin for another function. PF2/LCAS/WAIT/ BREQO The pin function is switched as shown below according to the combination of the operating mode and bits RMTS2 to RMTS0, LCASS, BREQOE, WAITE, ABW5 to ABW2, and PF2DDR. Operating Mode LCASS BREQOE WAITE PF2DDR Pin function 0* -- -- -- LCAS output pin 0 PF2 input pin 0 1 PF2 output pin 0 1 -- Modes 4 to 6 1 1 -- -- 0 PF2 input pin Mode 7 -- -- -- 1 PF2 output pin WAIT BREQO input output pin pin Note: * Restricted to RMTS2 to RMTS0=B'001 to B'011, DRAM space 16-bit access in modes 4 to 6 only. PF1/BACK/ BUZZ The pin function is switched as shown below according to the combination of the operating mode and bits BRLE, BUZZE, and PF1DDR. Operating Mode BRLE BUZZE PF1DDR Pin function 0 PF1 input pin 0 1 PF1 output pin Modes 4 to 6 0 1 -- BUZZ output pin 1 -- -- BACK output pin 0 PF1 input pin 0 1 PF1 output pin Mode 7 -- 1 -- BUZZ output pin 430 Pin PF0/BREQ/IRQ2 Selection Method and Pin Functions The pin function is switched as shown below according to the combination of the operating mode, and bits BRLE and PF0DDR. Operating Mode BRLE PF0DDR Pin function 0 PF0 input pin Modes 4 to 6 0 1 PF0 output pin 1 -- BREQ input pin IRQ2 input pin 0 PF0 input pin Mode 7 -- 1 PF0 output pin 10A.13 Port G 10A.13.1 Overview Port G is a 5-bit I/O port and also used as external interrupt input pins (IRQ6 and IRQ7) and bus control signal output pins (CS0 to CS3, CAS, and OE). Figure 10A-23 shows the configuration of port G pins. Port G pin PG4 / CS0 PG3 / CS1 Port G PG2 / CS2 PG1 / CS3 / OE / IRQ7 PG0 / CAS / IRQ6 Pin Functions in Modes 4 to 6 PG4 (input) / CS0 (output) PG3 (input) / CS1 (output) PG2 (input) / CS2 (output) PG1 (input) / CS3 (output) / OE (output) / IRQ7 (input) PG0 (I/O) / CAS (output) / IRQ6 (input) Pin Functions in Mode 7 PG4 (I/O) PG3 (I/O) PG2 (I/O) PG1 (I/O) / IRQ7 (input) PG0 (I/O) / IRQ6 (input) Figure 10A-23 Port G Pin Functions 431 10A.13.2 Register Configuration Table 10A-22 shows the port G register configuration. Table 10A-22 Port G Registers Name Port G data direction register Port G data register Port G register Abbreviation PGDDR PGDR PORTG R/W W R/W R Initial Value* 2 Address* 1 H'10/H'00* 3 H'00 Undefined H'FE3F H'FF0F H'FFBF Notes: *1 Lower 16 bits of the address. *2 Value of bits 4 to 0. *3 The initial value varies according to the mode. Port G Data Direction Register (PGDDR) Bit Modes 4 and 5 Initial value R/W Modes 6 and 7 Initial value R/W : Undefined Undefined Undefined : -- -- -- 0 W 0 W 0 W 0 W 0 W : Undefined Undefined Undefined : -- -- -- 1 W 0 W 0 W 0 W 0 W : 7 -- 6 -- 5 -- 4 3 2 1 0 PG4DDR PG3DDR PG2DDR PG1DDR PG0DDR PGDDR is an 8-bit write only register and specifies I/O of each pin of port G in bit units. Read processing is invalid. Bits 7 to 5 are reserved bits. When the contents are read, undefined values are read. In modes 4 and 5, the PG4DDR bits are initialized to H'10 (bits 4 to 0) in power-on reset or hardware standby mode, in modes 6 and 7, the bits are initialized to H'00 (bits 4 to 0). In manual reset or software standby mode, PGDDR retains the last status. Use the OPE bit of SBYCR to select whether the bus control output pin retains the output state or becomes the high-impedance when the mode is changed to a software standby mode. * Modes 4 to 6 When PGDDR is set to 1, pins PG4 to PG1 function as bus control signal output pins (CS0 to CS3 and OE). When PGDDR is cleared to 0, the pins function as input ports. When the DRAM interface is set, pin PG0 functions as the CAS output pin. When PGDDR is set to 1, the pin functions as an output port. When PGDDR is cleared to 0, the pin functions as an input port. 432 See section 7, Bus Controller, for the DRAM interface. * Mode 7 PGDDR to 1 it becomes an output port, and by clearing it to 0 it becomes an input port. Port G Data Register (PGDR) Bit : 7 -- R/W : -- 6 -- -- 5 -- -- 4 PG4DR 0 R/W 3 PG3DR 0 R/W 2 PG2DR 0 R/W 1 PG1DR 0 R/W 0 PG0DR 0 R/W Initial value : Undefined Undefined Undefined PGDR is an 8-bit read/write register and stores output data of port G output pins (PG4 to PG0). Bits 7 to 5 are reserved bits. When the contents are read, undefined values are read. Write processing is invalid. In power-on reset or hardware standby mode, PGDR is initialized to H'00 (bits 4 to 0). In manual reset or software standby mode, PGDR retains the last state. (3) Port G Register (PORTG) Bit : 7 -- R/W : -- 6 -- -- 5 -- -- 4 PG4 --* R 3 PG3 --* R 2 PG2 --* R 1 PG1 --* R 0 PG0 --* R Initial value : Undefined Undefined Undefined Note: * Determined by the state of PG4 to PG0 PORTG is an 8-bit read only register and reflects the pin state. Write processing is invalid. Write processing of output data of port G pins (PG4 to PG0) must be performed for PGDR. Bits 7 to 5 are reserved bits. When the contents are read, undefined values are read. Write processing is invalid. If port G is read when PGDDR is set to 1, the value in PGDR is read. If port G is read when PGDDR is cleared to 0, the pin state is read. In power-on reset or hardware standby mode, port G is determined by the pin state because PGDDR and PGDR are initialized. In manual reset or software standby mode, the last state is retained. 433 10A.13.3 Pin Functions Port G is used also as external interrupt input pins (IRQ6 and IRQ7) and bus control signal output pins (CS0 to CS3, CAS, and OE). The pin functions are different between modes 4 and 6, and mode 7. Table 10A-23 shows the port G pin functions. Table 10A-23 Port G Pin Functions Pin PG4/CS0 Selection Method and Pin Functions The pin function is switched as shown below according to the operating mode and bit PG4DDR. Operating Mode PG4DDR Pin function 0 PG4 input pin Modes 4 to 6 1 CS0 output pin 0 PG4 input pin Mode 7 1 PG4 output pin PG3/CS1 The pin function is switched as shown below according to the operating mode and bit PG3DDR. Operating Mode PG3DDR Pin function 0 PG3 input pin Modes 4 to 6 1 CS1 output pin 0 PG3 input pin Mode 7 1 PG3 output pin PG2/CS2 The pin function is switched as shown below according to the operating mode and bit PG2DDR. Operating Mode PG2DDR Pin function 0 PG2 input pin Modes 4 to 6 1 CS2 output pin 0 PG2 input pin Mode 7 1 PG2 output pin 434 Pin PG1/CS3/ OE/IRQ7 Selection Method and Pin Functions The pin function is switched as shown below according to the operating mode and bits OES and PG1DDR in BCRL. Operating Mode PG1DDR OES Pin function 0 -- PG1 input pin 0 CS3 output pin Modes 4 to 6 1 1 OE output pin IRQ7 input 0 -- PG1 input pin Mode 7 1 -- PG1 output pin PG0/CAS/ IRQ6 The pin function is switched as shown below according to the operating mode and bits RMTS2 to RMTS0 in BCRH. Operating Mode RMTS2 to RMTS0 PG0DDR Pin function 0 PG0 input pin Modes 4 to 6 B'000 1 PG0 output pin B'001 to B'011 -- CAS output pin IRQ6 input 0 PG0 input pin Mode 7 -- 1 PG0 output pin 435 436 Section 10B I/O Ports (H8S/2695) 10B.1 Overview The H8S/2633 Series has 10 I/O ports (ports 1, 3, 7 and A to G), and two input-only port (ports 4 and 9). Table 10B-1 summarizes the port functions. The pins of each port also have other functions. Each I/O port includes a data direction register (DDR) that controls input/output, a data register (DR) that stores output data, and a port register (PORT) used to read the pin states. The input-only ports do not have a DR or DDR register. Ports A to E have a built-in pull-up MOS function, and in addition to DR and DDR, have a MOS input pull-up control register (PCR) to control the on/off state of MOS input pull-up. Ports 3, and A to C include an open-drain control register (ODR) that controls the on/off state of the output buffer PMOS. When ports 10 to 13, 70 to 73, and A to G are used as the output pins for expanded bus control signals, they can drive one TTL load plus a 50pF capacitance load. Those ports in other cases, and ports 14 to 17, 3, and 74 to 77, can drive one TTL load and a 30pF capacitance load. All I/O ports can drive Darlington transistors when set to output. See Appendix C, I/O Port Block Diagrams, for a block diagram of each port. 437 Table 10B-1 Port Functions Port Description Pins P17/TIOCB2/TCLKD P16/TIOCA2//IRQ1 P15/TIOCB1/TCLKC P14/TIOCA1/IRQ0 P13/TIOCD0/TCLKB/ A23 P12/TIOCC0/TCLKA/ A22 P11/TIOCB0/A21 P10/TIOCA0/A20 Mode 4 Mode 5 Mode 6 Mode 7 8-bit I/O port also functioning as TPU I/O pins (TCLKA, TCLKB, TCLKC, TCLKD, TIOCA0, TIOCB0, TIOCC0, TIOCD0, TIOCA1, TIOCB1, TIOCA2, TIOCB2) and interrupt input pins (IRQ0, IRQ1) Port 1 * 8-bit I/O port * Schmitttriggered input (P16, P14) 8-bit I/O port also functioning as TPU I/O pins (TCLKA, TCLKB, TCLKC, TCLKD, TIOCA0, TIOCB0, TIOCC0, TIOCD0, TIOCA1, TIOCB1, TIOCA2, TIOCB2), interrupt input pins (IRQ0, IRQ1), and address outputs (A20 to A23) Port 3 * 8-bit I/O port P37/TxD4 P36/RxD4 * Open-drain P35/SCK1/SCK4/IRQ5 output P34 /RxD1 capability P33 /TxD1 * Schmitttriggered input (P35, P32) Port 4 * 8-bit input port P32 /SCK0/IRQ4 P31 /RxD0 P30 /TxD0 P47 /AN7 P46 /AN6 P45 /AN5 P44 /AN4 P43 /AN3 P42 /AN2 P41 /AN1 P40/AN0 Port 7 * 8-bit I/O port P77/TxD3 P76/RxD3 P75/SCK3 P74/MRES P73/CS7 P72/CS6 P71/CS5 P70/CS4 8-bit I/O port also functioning as SCI (channel 0, 1, and 4) I/O pins (TxD0, RxD0, SCK0, TxD1, RxD1, SCK1, TxD4, RxD4, SCK4) and interrupt input pins (IRQ4, IRQ5) 8-bit input port also functioning as A/D converter analog inputs (AN7 to AN0) 8-bit I/O port also functioning as bus control output pins (CS4 to CS7), SCI I/O pins (SCK3, RxD3, TxD3), and the manual reset input pin (MRES) 8-bit I/O port also functioning as SCI I/O pins (SCK3, RxD3, TxD3) and the manual reset input pin (MRES) 438 Port Description Pins P97/AN15 P96/AN14 P95/AN13 P94/AN12 P93/AN11 P92/AN10 P91/AN9 P90/AN8 Mode 4 Mode 5 Mode 6 Mode 7 Port 9 * 8-bit input port 8-bit input port also functioning as A/D converter analog inputs (AN15 to AN8) Port A * 4-bit I/O port * Built-in MOS input pull-up * Open-drain output capability Port B * 8-bit I/O port * Built-in MOS input pull-up PA3/A19/SCK2 PA2/A18/RxD2 PA1/A17/TxD2 PA0/A16 4-bit I/O port also functioning as SCI (channel 2) I/O pins (TxD2, RxD2, SCK2) and address outputs (A19 to A16) 4-bit I/O port also functioning as SCI (channel 2) I/O pins (TxD2, RxD2, SCK2) PB7/A15/TIOCB5 PB6/A14/TIOCA5 PB5/A13/TIOCB4 PB4/A12/TIOCA4 8-bit I/O port also functioning as TPU I/O pins (TIOCB5, TIOCA5, TIOCB4, TIOCA4, TIOCD3, TIOCC3, TIOCB3, TIIOCA3) and address outputs (A15 to A8) * Open-drain PB3/A11/TIOCD3 output PB2/A10/TIOCC3 capability PB1/A9/TIOCB3 PB0/A8/TIOCA3 Port C * 8-bit I/O port * Built-in MOS input pull-up PC7/A7 PC6/A6 PC5/A5 PC4/A4 8-bit I/O port also functioning as address outputs (A7 to A0) 8-bit I/O port also functioning as TPU I/O pins (TIOCB5, TIOCA5, TIOCB4, TIOCA4, TIOCD3, TIOCC3, TIOCB3, TIIOCA3) 8-bit I/O port also functioning * Open-drain PC3/A3 output PC2/A2 capability PC1/A1 PC0 /A0 439 Port Description Pins PD7 /D15 PD6/D14 PD5/D13 PD4/D12 PD3/D11 PD2/D10 PD1/D9 PD0 /D8 Mode 4 Mode 5 Mode 6 Mode 7 I/O port Port D * 8-bit I/O port * Built-in MOS input pull-up Data bus input/output Port E * 8-bit I/O port * Built-in MOS input pull-up PE7/D7 PE6/D6 PE5/D5 PE4/D4 PE3/D3 PE2/D2 PE1/D1 PE0 /D0 In 8-bit-bus mode: I/O port In 16-bit-bus mode: data bus input/output I/O port Port F * 8-bit I/O port PF7 /o When DDR = 0: input port When DDR = 1 (after reset): o output When DDR = 0 (after reset): input port When DDR = 1: o output PF6/AS PF5/RD PF4/HWR PF3/LWR/ADTRG/ IRQ3 PF2/WAIT/BREQO RD, HWR, LWR outputs ADTRG, IRQ3 input I/O port ADTRG, IRQ3 input When WAITE = 0 and BREQOE = 0 (after reset): I/O port When WAITE = 1 and BREQOE = 0: WAIT input When WAITE = 0 and BREQOE = 1: BREQO input I/O port PF1/BACK PF0/BREQ/IRQ2 When BRLE = 0 (after reset): I/O port When BRLE = 1: BREQ input, BACK output IRQ2 input IRQ2 input I/O port 440 Port Description PG4/CS0 Pins Mode 4 1 Mode 5 Mode 6 Mode 7 I/O port Port G * 5-bit I/O port When DDR = 0* : input port When DDR = 1*2: CS0 output PG3/CS1 PG2/CS2 PG1/CS3/IRQ7 PG0/IRQ6 When DDR = 0 (after reset): input port When DDR = 1: CS1, CS2, CS3 outputs IRQ7 input After reset: I/O port IRQ6 input I/O port, IRQ7 input I/O port, IRQ6 input Notes: *1 After a reset in mode 6 *2 After a reset in modes 4 or 5 441 10B.2 Port 1 10B.2.1 Overview Port 1 is an 8-bit I/O port. Port 1 pins also function as TPU I/O pins (TCLKA, TCLKB, TCLKC, TCLKD, TIOCA0, TIOCB0, TIOCC0, TIOCD0, TIOCA1, TIOCB1, TIOCA2, and TIOCB2), external interrupt pins (IRQ0 and IRQ1), and address bus output pins (A23 to A20). Port 1 pin functions change according to the operating mode. Figure 10B-1 shows the port 1 pin configuration. Port 1 pins Pin functions in modes 4 to 6 P17 (I/O) / TIOCB2 (I/O) / TCLKD (input) P16 (I/O) / TIOCA2 (I/O) / IRQ1 (input) P15 (I/O) / TIOCB1 (I/O) / TCLKC (input) P14 (I/O) / TIOCA1 (I/O) / IRQ0 (input) Port 1 P13 (I/O) / TIOCD0 (I/O) / TCLKB (input) / A23 (output) P12 (I/O) / TIOCC0 (I/O) / TCLKA (input) / A22 (output) P11 (I/O) / TIOCB0 (I/O) / A21 (output) P10 (I/O) / TIOCA0 (I/O) / A20 (output) Pin functions in mode 7 P17 (I/O) / TIOCB2 (I/O) / TCLKD (input) P16 (I/O) / TIOCA2 (I/O) / IRQ1 (input) P15 (I/O) / TIOCB1 (I/O) / TCLKC (input) P14 (I/O) / TIOCA1 (I/O) / IRQ0 (input) P13 (I/O) / TIOCD0 (I/O) / TCLKB (input) P12 (I/O) / TIOCC0 (I/O) / TCLKA (input) P11 (I/O) / TIOCB0 (I/O) P10 (I/O) / TIOCA0 (I/O) Figure 10B-1 Port 1 Pin Functions 442 10B.2.2 Register Configuration Table 10B-2 shows the port 1 register configuration. Table 10B-2 Port 1 Registers Name Port 1 data direction register Port 1 data register Port 1 register Abbreviation P1DDR P1DR PORT1 R/W W R/W R Initial Value H'00 H'00 Undefined Address* H'FE30 H'FF00 H'FFB0 Note: * Lower 16 bits of the address. Port 1 Data Direction Register (P1DDR) Bit : 7 6 5 4 3 2 1 0 P17DDR P16DDR P15DDR P14DDR P13DDR P12DDR P11DDR P10DDR Initial value : R/W : 0 W 0 W 0 W 0 W 0 W 0 W 0 W 0 W P1DDR is an 8-bit write-only register, the individual bits of which specify input or output for the pins of port 1. P1DDR cannot be read; if it is, an undefined value will be read. Setting a P1DDR bit to 1 makes the corresponding port 1 pin an output pin, while clearing the bit to 0 makes the pin an input pin. P1DDR is initialized to H'00 by a power-on reset, and in hardware standby mode. It retains its prior state by a manual reset or in software standby mode. Because TPU is initialized at a manual reset, pin states are determined by P1DDR and P1DR. Port 1 Data Register (P1DR) Bit : 7 P17DR Initial value : R/W : 0 R/W 6 P16DR 0 R/W 5 P15DR 0 R/W 4 P14DR 0 R/W 3 P13DR 0 R/W 2 P12DR 0 R/W 1 P11DR 0 R/W 0 P10DR 0 R/W P1DR is an 8-bit readable/writable register that stores output data for the port 1 pins (P17 to P10). P1DR is initialized to H'00 by a power-on reset, and in hardware standby mode. It retains its prior state by a manual reset or in software standby mode. 443 Port 1 Register (PORT1) Bit : 7 P17 Initial value : R/W : --* R 6 P16 --* R 5 P15 --* R 4 P14 --* R 3 P13 --* R 2 P12 --* R 1 P11 --* R 0 P10 --* R Note: * Determined by state of pins P17 to P10. PORT1 is an 8-bit read-only register that shows the pin states. It cannot be written to. Writing of output data for the port 1 pins (P17 to P10) must always be performed on P1DR. If a port 1 read is performed while P1DDR bits are set to 1, the P1DR values are read. If a port 1 read is performed while P1DDR bits are cleared to 0, the pin states are read. After a power-on reset and in hardware standby mode, PORT1 contents are determined by the pin states, as P1DDR and P1DR are initialized. PORT1 retains its prior state by a manual reset or in software standby mode. 444 10B.2.3 Pin Functions Port 1 pins also function as TPU I/O pins (TCLKA, TCLKB, TCLKC, TCLKD, TIOCA0, TIOCB0, TIOCC0, TIOCD0, TIOCA1, TIOCB1, TIOCA2, and TIOCB2), external interrupt input pins (IRQ0 and IRQ1), and address bus output pins (A23 to A20). Port 1 pin functions are shown in table 10B-3. Table 10B-3 Port 1 Pin Functions Pin P17/TIOCB2/ TCLKD Selection Method and Pin Functions The pin function is switched as shown below according to the combination of the TPU channel 2 setting (by bits MD3 to MD0 in TMDR2, bits IOB3 to IOB0 in TIOR2, and bits CCLR1 and CCLR0 in TCR2), bits TPSC2 to TPSC0 in TCR0 and TCR5, and bit P17DDR. TPU Channel 2 Setting P17DDR Pin function Table Below (1) -- TIOCB2 output 0 P17 input TIOCB2 input * 1 TCLKD input * 2 Notes: *1 TIOCB2 input when MD3 to MD0 = B'0000 or B'01xx, and IOB3 = 1. *2 TCLKD input when the setting for either TCR0 or TCR5 is: TPSC2 to TPSC0 = B'111. TCLKD input when channels 2 and 4 are set to phase counting mode. TPU Channel 2 Setting MD3 to MD0 IOB3 to IOB0 (2) B'0000 B'0100 B'1xxx -- -- (1) B'0001 to B'0011 B'0101 to B'0111 -- Output compare output (2) B'0010 -- B'xx00 (2) (1) B'0011 Other than B'xx00 (2) Table Below (2) 1 P17 output B'0000, B'01xx CCLR1, CCLR0 Output function -- -- -- -- Other than B'10 PWM mode 2 output B'10 -- x: Don't care 445 Pin P16/TIOCA2/ IRQ1 Selection Method and Pin Functions The pin function is switched as shown below according to the combination of the TPU channel 2 setting (by bits MD3 to MD0 in TMDR2, bits IOA3 to IOA0 in TIOR2, and bits CCLR1 and CCLR0 in TCR2), and bit P16DDR. TPU Channel 2 Setting P16DDR Pin function Table Below (1) -- TIOCA2 output 0 P16 input Table Below (2) 1 P16 output TIOCA2 input * 1 IRQ1 input TPU Channel 2 Setting MD3 to MD0 IOA3 to IOA0 (2) B'0000 B'0100 B'1xxx -- -- (1) (2) B'001x (1) B'0010 (1) B'0011 (2) B'0000, B'01xx B'0001 to B'xx00 B'0011 B'0101 to B'0111 -- Output compare output -- -- -- Other than B'xx00 CCLR1, CCLR0 Output function Other than B'01 PWM mode 2 output B'01 -- PWM mode 1 output* 2 x: Don't care Notes: *1 TIOCA2 input when MD3 to MD0 = B'0000 or B'01xx, and IOA3 = 1. *2 TIOCB2 output is disabled. 446 Pin P15/TIOCB1/ TCLKC Selection Method and Pin Functions The pin function is switched as shown below according to the combination of the TPU channel 1 setting (by bits MD3 to MD0 in TMDR1, bits IOB3 to IOB0 in TIOR1, and bits CCLR1 and CCLR0 in TCR1), bits TPSC2 to TPSC0 in TCR0, TCR2, TCR4, and TCR5, and bit P15DDR. TPU Channel 1 Setting P15DDR Pin function Table Below (1) -- TIOCB1 output 0 P15 input Table Below (2) 1 P15 output TIOCB1 input * 1 TCLKC input * 2 Notes: *1 TIOCB1 input when MD3 to MD0 = B'0000 or B'01xx, and IOB3 to IOB0 = B'10xx. *2 TCLKC input when the setting for either TCR0 or TCR2 is: TPSC2 to TPSC0 = B'110; or when the setting for either TCR4 or TCR5 is TPSC2 to TPSC0 = B'101. TCLKC input when channels 2 and 4 are set to phase counting mode. TPU Channel 1 Setting MD3 to MD0 IOB3 to IOB0 (2) B'0000 B'0100 B'1xxx -- (1) B'0001 to B'0011 B'0101 to B'0111 -- (2) B'0010 -- B'xx00 (2) (1) B'0011 Other than B'xx00 (2) B'0000, B'01xx CCLR1, CCLR0 Output function -- -- Other than B'10 PWM mode 2 output B'10 -- Output compare output -- -- -- x: Don't care 447 Pin P14/TIOCA1/ IRQ0 Selection Method and Pin Functions The pin function is switched as shown below according to the combination of the TPU channel 1 setting (by bits MD3 to MD0 in TMDR1, bits IOA3 to IOA0 in TIOR1, and bits CCLR1 and CCLR0 in TCR1), and bit P14DDR. TPU Channel 1 Setting P14DDR Pin function Table Below (1) -- TIOCA1 output 0 P14 input Table Below (2) 1 P14 output TIOCA1 input * 1 IRQ0 input TPU Channel 1 Setting MD3 to MD0 IOA3 to IOA0 (2) B'0000 B'0100 B'1xxx -- -- (1) (2) B'001x (1) B'0010 Other than B'xx00 -- PWM mode 1 output* 2 (1) B'0011 (2) B'0000, B'01xx B'0001 to B'xx00 B'0011 B'0101 to B'0111 -- Output compare output -- -- Other than B'xx00 CCLR1, CCLR0 Output function Other than B'01 PWM mode 2 output B'01 -- x: Don't care Notes: *1 TIOCA1 input when MD3 to MD0 = B'0000 or B'01xx, and IOA3 to IOA0 = B'10xx. *2 TIOCB1 output is disabled. 448 Pin P13/TIOCD0/ TCLKB/A23 Selection Method and Pin Functions The pin function is switched as shown below according to the combination of the operating mode, and the TPU channel 0 setting (by bits MD3 to MD0 in TMDR0, bits IOD3 to IOD0 in TIOR0L, and bits CCLR2 to CCLR0 in TCR0), bits TPSC2 to TPSC0 in TCR0 to TCR2, bits AE3 to AE0 in PFCR, and bit P13DDR. Operating mode AE3 to AE0 TPU Channel 0 Setting P13DDR Pin function Table Below (1) -- TIOCD0 output Modes 4 to 6 B'0000 to B'1110 Table Below (2) 0 P13 input 1 P13 output B'1111 -- -- A23 output TIOCD0 input* 1 TCLKB input* 2 Operating mode AE3 to AE0 TPU Channel 0 Setting P13DDR Pin function Table Below (1) -- TIOCD0 output Mode 7 -- Table Below (2) 0 P13 input 1 P13 output TIOCD0 input* 1 TCLKB input* 2 Notes: *1 TIOCD0 input when MD3 to MD0 = B'0000, and IOD3 to IOD0 = B'10xx. *2 TCLKB input when the setting for TCR0 to TCR2 is: TPSC2 to TPSC0 = B'101. TCLKB input when channels 1 and 5 are set to phase counting mode. 449 Pin P13/TIOCD0/ TCLKB/A23 (cont) Selection Method and Pin Functions TPU Channel 0 Setting MD3 to MD0 IOD3 to IOD0 (2) B'0000 B'0000 B'0100 B'1xxx -- (1) B'0001 to B'0011 B'0101 to B'0111 -- (2) B'0010 -- (2) B'xx00 (1) B'0011 (2) Other than B'xx00 CCLR2 to CCLR0 Output function -- -- Other than B'110 PWM mode 2 output B'110 -- Output compare output -- -- -- x: Don't care 450 Pin P12/TIOCC0/ TCLKA/A22 Selection Method and Pin Functions The pin function is switched as shown below according to the combination of the operating mode, and the TPU channel 0 setting (by bits MD3 to MD0 in TMDR0, bits IOC3 to IOC0 in TIOR0L, and bits CCLR2 to CCLR0 in TCR0), bits TPSC2 to TPSC0 in TCR0 to TCR5, bits AE3 to AE0 in PFCR, and bit P12DDR. Operating mode AE3 to AE0 TPU Channel 0 Setting P12DDR Pin function Table Below (1) -- TIOCC0 output Modes 4 to 6 B'0000 to B'1110 Table Below (2) 0 P12 input 1 P12 output B'1111 -- -- A22 output TIOCC0 input* 1 TCLKA input* 2 Operating mode AE3 to AE0 TPU Channel 0 Setting P12DDR Pin function Table Below (1) -- TIOCC0 output Mode 7 -- Table Below (2) 0 P12 input 1 P12 output TIOCC0 input* 1 TCLKA input* 2 451 Pin P12/TIOCC0/ TCLKA/A22 (cont) Selection Method and Pin Functions TPU Channel 0 Setting MD3 to MD0 IOC3 to IOC0 (2) B'0000 B'0000 B'0100 B'1xxx -- (1) (2) B'001x (1) B'0010 (1) B'0011 (2) B'0001 to B'xx00 B'0011 B'0101 to B'0111 -- -- -- Other than B'xx00 CCLR2 to CCLR0 Output function Other than B'101 PWM mode 2 output B'101 -- Output compare output -- PWM mode 1 output* 3 -- x: Don't care Notes: *1 TIOCC0 input when MD3 to MD0 = B'0000, and IOC3 to IOC0 = B'10xx. *2 TCLKA input when the setting for TCR0 to TCR5 is: TPSC2 to TPSC0 = B'100. TCLKA input when channels 1 and 5 are set to phase counting mode. *3 TIOCD0 output is disabled. When BFA = 1 or BFB = 1 in TMDR0, output is disabled and setting (2) applies. 452 Pin P11/TIOCB0/A21 Selection Method and Pin Functions The pin function is switched as shown below according to the combination of the operating mode, and the TPU channel 0 setting (by bits MD3 to MD0 in TMDR0, and bits IOB3 to IOB0 in TIOR0H), bits AE3 to AE0 in PFCR, and bit P11DDR. Operating mode AE3 to AE0 TPU Channel 0 Setting P11DDR Pin function Table Below (1) -- TIOCB0 output Modes 4 to 6 B'0000 to B'1101 Table Below (2) 0 P11 input 1 P11 output TIOCB0 input * B'1110 to B'1111 -- -- A21 output Operating mode AE3 to AE0 TPU Channel 0 Setting P11DDR Pin function Table Below (1) -- TIOCB0 output Mode 7 -- Table Below (2) 0 P11 input 1 P11 output TIOCB0 input * Note: * TIOCB0 input when MD3 to MD0 = B'0000, and IOB3 to IOB0 = B'10xx. 453 Pin P11/TIOCB0/A21 (cont) Selection Method and Pin Functions TPU Channel 0 Setting MD3 to MD0 IOB3 to IOB0 (2) B'0000 B'0000 B'0100 B'1xxx -- (1) B'0001 to B'0011 B'0101 to B'0111 -- (2) B'0010 -- (2) B'xx00 (1) B'0011 (2) Other than B'xx00 CCLR2 to CCLR0 Output function -- -- Other than B'010 PWM mode 2 output B'010 -- Output compare output -- -- -- x: Don't care 454 Pin P10/TIOCA0/A20 Selection Method and Pin Functions The pin function is switched as shown below according to the combination of the operating mode, and the TPU channel 0 setting (by bits MD3 to MD0 in TMDR0, bits IOA3 to IOA0 in TIOR0H, and bits CCLR2 to CCLR0 in TCR0), bits AE3 to AE0 in PFCR, and bit P10DDR. Operating mode AE3 to AE0 TPU Channel 0 Setting P10DDR Pin function Table Below (1) -- TIOCA0 output Modes 4 to 6 B'0000 to B'1110 Table Below (2) 0 P10 input 1 P10 output B'1101 to B'1111 -- -- A20 output TIOCA0 input * 1 Operating mode AE3 to AE0 TPU Channel 0 Setting P10DDR Pin function Table Below (1) -- TIOCA0 output Mode 7 -- Table Below (2) 0 P10 input 1 P10 output TIOCA0 input * 1 455 Pin P10/TIOCA0/A20 (cont) Selection Method and Pin Functions TPU Channel 0 Setting MD3 to MD0 IOA3 to IOA0 (2) B'0000 B'0000 B'0100 B'1xxx -- (1) (2) B'001x (1) B'0010 (1) B'0011 (2) B'0001 to B'xx00 B'0011 B'0101 to B'0111 -- -- -- Other than B'xx00 CCLR2 to CCLR0 Output function Other than B'001 PWM mode 2 output B'001 -- Output compare output -- PWM mode 1 output* 2 -- x: Don't care Notes: *1 TIOCA0 input when MD3 to MD0 = B'0000, and IOA3 to IOA0 = B'10xx. *2 TIOCB0 output is disabled. 456 10B.3 Port 3 10B.3.1 Overview Port 3 is an 8-bit I/O port. Port 3 is a multi-purpose port for SCI I/O pins (TxD0, RxD0, SCK0, TxD1, RxD1, SCK1, TxD4, RxD4, and SCK4) and external interrupt input pins (IRQ4 and IRQ5). All of the port 3 pin functions have the same operating mode. The configuration for each of the port 3 pins is shown in figure 10B-2. Port 3 pins P37 (I/O) / TxD4 (output) P36 (I/O) / RxD4 (input) P35 (I/O) / SCK1 (I/O) / SCK4 (I/O) / IRQ5 (input) Port 3 P34 (I/O) / RxD1 (input) P33 (I/O) / TxD1 (input) P32 (I/O) / SCK0 (I/O) / IRQ4 (input) P31 (I/O) / RxD0 (input) P30 (I/O) / TxD0 (output) Figure 10B-2 Port 3 Pin Functions 10B.3.2 Register Configuration Table 10B-4 shows the configuration of port 3 registers. Table 10B-4 Port 3 Register Configuration Name Port 3 data direction register Port 3 data register Port 3 register Port 3 open drain control register Note: * Lower 16 bits of the address. Abbreviation P3DDR P3DR PORT3 P3ODR R/W W R/W R R/W Initial Value H'00 H'00 Undefined H'00 Address* H'FE32 H'FF02 H'FFB2 H'FE46 457 Port 3 Data Direction Register (P3DDR) Bit : 7 0 W 6 0 W 5 0 W 4 0 W 3 0 W 2 0 W 1 0 W 0 0 W P37DDR P36DDR P35DDR P34DDR P33DDR P32DDR P31DDR P30DDR Initial value : R/W : P3DDR is an 8-bit write-dedicated register, which specifies the I/O for each port 3 pin by bit. Read is disenabled. If a read is carried out, undefined values are read out. By setting P3DDR to 1, the corresponding port 3 pins become output, and be clearing to 0 they become input. P3DDR is initialized to H'00 by a power-on reset and in hardware standby mode. The previous state is maintained by a manual reset and in software standby mode. SCI is initialized, so the pin state is determined by the specification of P3DDR and P3DR. Port 3 Data Register (P3DR) Bit : 7 P37DR Initial value : R/W : 0 R/W 6 P36DR 0 R/W 5 P35DR 0 R/W 4 P34DR 0 R/W 3 P33DR 0 R/W 2 P32DR 0 R/W 1 P31DR 0 R/W 0 P30DR 0 R/W P3DR is an 8-bit readable/writable register, which stores the output data of port 3 pins (P35 to P30). P3DR is initialized to H'00 by a power-on reset and in hardware standby mode. The previous state is maintained by a manual reset and in software standby mode. 458 Port 3 Register (PORT3) Bit : 7 P37 Initial value : R/W : --* R 6 P36 --* R 5 P35 --* R 4 P34 --* R 3 P33 --* R 2 P32 --* R 1 P31 --* R 0 P30 --* R Note: * Determined by the state of pins P37 to P30. PORT3 is an 8-bit read-dedicated register, which reflects the state of pins. Write is disenabled. Always carry out writing off output data of port 3 pins (P37 to P30) to P3DR without fail. When P3DDR is set to 1, if port 3 is read, the values of P3DR are read. When P3DDR is cleared to 0, if port 3 is read, the states of pins are read out. P3DDR and P3DR are initialized by a power-on reset and in hardware standby mode, so PORT3 is determined by the state of the pins. The previous state is maintained by a manual reset and in software standby mode. Port 3 Open Drain Control Register (P3ODR) Bit : 7 0 R/W 6 0 R/W 5 0 R/W 4 0 R/W 3 0 R/W 2 0 R/W 1 0 R/W 0 0 R/W P37ODR P36ODR P35ODR P34ODR P33ODR P32ODR P31ODR P30ODR Initial value : R/W : P3ODR is an 8-bit readable/writable register, which controls the on/off of port 3 pins (P37 to P30). By setting P3ODR to 1, the port 3 pins become an open drain out, and when cleared to 0 they become CMOS output. P3ODR is initialized to H'00 by a power-on reset and in hardware standby mode. The previous state is maintained by a manual reset and in software standby mode. 459 10B.3.3 Pin Functions The port 3 pins double as SCI I/O input pins (TxD0, RxD0, SCK0, TxD1, RxD1, and SCK1). The functions of port 3 pins are shown in table 10B-5. Table 10B-5 Port 3 Pin Functions Pin P37/TxD4 Selection Method and Pin Functions Switches as follows according to combinations of SCR TE bit of SCI4 and the P37DDR bit. TE P37DDR Pin function 0 P37 input pin 0 1 P37 output pin* 1 -- TxD4 output pin Note: * When P37ODR = 1, it becomes NMOS open drain output. P36/RxD4 Switches as follows according to combinations of SCR RE bit of SCI4 and the P36DDR bit. RE P36DDR Pin function 0 P36 input pin 0 1 P36 output pin* 1 -- RxD4 input pin Note: * When P36ODR = 1, it becomes NMOS open drain output. P35/SCK1/ SCK4/IRQ5 Switches as follows according to combinations of the SMR C/A bit of SCI1 or SCI4, the SCR CKE0 and CKE1 bits, and the P35DDR bit. SCK1 and SCK4 should not be set to output simultaneously. CKE1 (SCI1) CKE1 (SCI4) C/A (SCI1) C/A (SCI4) CKE0 (SCI1) CKE0 (SCI4) P35DDR Pin function 0 0 0 1 P35*3 0 0 0, 1, 1*3 1, 0, 1*3 -- SCK1/SCK4 *3 output pin 0 0 1 1 -- -- SCK1/SCK4 *3 output pin IRQ5 input Notes: *1 These settings are prohibited. *2 If SCK1 and SCK4 are used as input (clock input) pins on the H8S/2695, P35DDR must be cleared to 0. *3 The output format is CMOS output. It becomes NMOS open drain output if P35ODR is set to 1. 0*1 1*1 -- -- -- -- 1*1 0*1 -- -- -- -- 1 1 -- -- 0 *2 SCK1/SCK4 input pin P35 input output pin pin 460 Pin P34/RxD1 Selection Method and Pin Functions Switches as follows according to combinations of ICCR0 ICE bit of IIC0, SCR RE bit of SCI1, and the P34DDR bit. RE P34DDR Pin function 0 P34 input pin 0 1 P34 output pin* 1 -- RxD1 input pin Note: * Output type is NMOS push-pull. When P34ODR = 1, it becomes NMOS open drain tray. P33/TxD1 Switches as follows according to combinations of ICCR1 ICE bit of IIC1, SCR TE bit of SCI1 and the P33DDR bit. TE P33DDR Pin function 0 P33 input pin 0 1 P33 output pin* 1 -- TxD1 output pin* Note: * When P33ODR = 1, it becomes NMOS open drain output. P32/SCK0/ IRQ4 Switches as follows according to combinations of SMR C/A bit of SCI0, SCR CKE0 and CKE1 bits, and the P32DDR bit. If using as an SDA1 input pin, always set SMR C/A bit of SCI0 and SCR CKE0 and CKE1 bits to 0 without fail. CKE1 C/A CKE0 P32DDR Pin function 0 P32 input pin 0 1 P32 output pin 0 1 -- 0 1 -- -- 1 -- -- -- SCK0 input pin SCK0 output SCK0 output pin* pin* IRQ4 input Note: * When P32ODR = 1, it becomes NMOS open drain output. 461 Pin P31/RxD0 Selection Method and Pin Functions Switches as follows according to combinations of SCR RE bit of SCI0 and the P31DDR bit. RE P31DDR Pin function 0 P31 input pin 0 1 P31 output pin* 1 -- RxD0 input pin Note: * When P31ODR = 1, it becomes NMOS open drain output. P30/TxD0 Switches as follows according to combinations of SCR TE bit of SCI0 and the P30DDR bit. TE P30DDR Pin function 0 P30 input pin 0 1 P30 output pin* 1 -- TxD0 output pin* Note: * When P30ODR = 1, it becomes NMOS open drain output. 462 10B.4 Port 4 10B.4.1 Overview Port 4 is an 8-bit input-only port. Port 4 pins function as A/D converter analog input pins (AN0 to AN7). Port 4 pin functions are the same in all operating modes. Figure 10B-3 shows the port 4 pin configuration. Port 4 pins P47 (input) / AN7 (input) P46 (input) / AN6 (input) P45 (input) / AN5 (input) Port 4 P44 (input) / AN4 (input) P43 (input) / AN3 (input) P42 (input) / AN2 (input) P41 (input) / AN1 (input) P40 (input) / AN0 (input) Figure 10B-3 Port 4 Pin Functions 463 10B.4.2 Register Configuration Table 10B-6 shows the port 4 register configuration. Port 4 is an input-only port, and does not have a data direction register or data register. Table 10B-6 Port 4 Registers Name Port 4 register Abbreviation PORT4 R/W R Initial Value Undefined Address* H'FFB3 Note: * Lower 16 bits of the address. Port 4 Register (PORT4): The pin states are always read when a port 4 read is performed. Bit : 7 P47 Initial value : R/W : --* R 6 P46 --* R 5 P45 --* R 4 P44 --* R 3 P43 --* R 2 P42 --* R 1 P41 --* R 0 P40 --* R Note: * Determined by state of pins P47 to P40. 10B.4.3 Pin Functions Port 4 pins function as A/D converter analog input pins (AN0 to AN7). 464 10B.5 Port 7 10B.5.1 Overview Port 7 is an 8-bit I/O port. Port 7 is a multipurpose port for the bus control output pins (CS4 to CS7), SCI I/O pins (SCK3, RxD3, and TxD3), and manual reset input pin (MRES). The pin functions for P77 to P74 are the same in all operating modes. P73 to P70 pin functions are switched according to operating mode. Figure 10B-4 shows the configuration for port 7 pins. Port 7 pins P77 / TxD3 P76 / RxD3 P75 / SCK3 Port 7 P74 / MRES P73 / CS7 P72 / CS6 P71 / CS5 P70 / CS4 Pin functions in modes 4 to 6 P77 (I/O) / TxD3 (output) P76 (I/O) / RxD3 (input) P75 (I/O) / SCK3 (I/O) P74 (I/O) / MRES (input) P73 (I/O) / CS7 (output) P72 (I/O) / CS6 (output) P71 (I/O) / CS5 (output) P70 (I/O) / CS4 (output) Pin functions in mode 7 P77 (I/O) / TxD3 (output) P76 (I/O) / RxD3 (input) P75 (I/O) / SCK3 (I/O) P74 (I/O) / MRES (input) P73 (I/O) P72 (I/O) P71 (I/O) P70 (I/O) Figure 10B-4 Port 7 Pin Functions 465 10B.5.2 Register Configuration Table 10B-7 shows the port 7 register configuration. Table 10B-7 Port 7 Register Configuration Name Port 7 data direction register Port 7 data register Port 7 register Note: * Lower 16 bits of the address. Abbreviation P7DDR P7DR PORT7 R/W W R/W R Initial Value H'00 H'00 Undefined Address* H'FE36 H'FF06 H'FFB6 Port 7 Data Direction Register (P7DDR) Bit : 7 0 W 6 0 W 5 0 W 4 0 W 3 0 W 2 0 W 1 0 W 0 0 W P77DDR P76DDR P75DDR P74DDR P73DDR P72DDR P71DDR P70DDR Initial value : R/W : P7DDR is an 8-bit write-dedicated register, which specifies the I/O for each port 7 pin by bit. Read is disenabled. If a read is carried out, undefined values are read out. By setting P7DDR to 1, the corresponding port 7 pins become output, and by clearing to 0 they become input. P7DDR is initialized to H'00 by a power-on reset and in hardware standby mode. The previous state is maintained by a manual reset and in software standby mode. SCI is initialized by a manual reset, so the pin state is determined by the specification of P7DDR and P7DR. 466 Port 7 Data Register (P7DR) Bit : 7 P77DR Initial value : R/W : 0 R/W 6 P76DR 0 R/W 5 P75DR 0 R/W 4 P74DR 0 R/W 3 P73DR 0 R/W 2 P72DR 0 R/W 1 P71DR 0 R/W 0 P70DR 0 R/W P7DR is an 8-bit readable/writable register, which stores the output data of port 7 pins (P77 to P70). P7DR is initialized to H'00 by a power-on reset and in hardware standby mode. The previous state is maintained by a manual reset and in software standby mode. Port 7 Register (PORT7) Bit : 7 P77 Initial value : R/W : --* R 6 P76 --* R 5 P75 --* R 4 P74 --* R 3 P73 --* R 2 P72 --* R 1 P71 --* R 0 P70 --* R Note: * Determined by the state of pins P77 to P70. PORT7 is an 8-bit read-dedicated register, which reflects the state of pins. Write is disenabled. Always carry out writing off output data of port 7 pins (P77 to P70) to P7DR without fail. When P7DDR is set to 1, if port 7 is read, the values of P7DR are read. When P7DDR is cleared to 0, if port 7 is read, the states of pins are read out. P7DDR and P7DR are initialized by a power-on reset and in hardware standby mode, so PORT7 is determined by the state of the pins. The previous state is maintained by a manual reset and in software standby mode. 467 10B.5.3 Pin Functions The pins of port 7 are multipurpose pins which function as bus control output pins (CS4 to CS7), SCI I/O pins (SCK3, RxD3, and TxD3), and manual reset input pin (MRES). Table 10B-8 shows the functions of port 7 pins. Table 10B-8 Port 7 Pin Functions Pin P77/TxD3 Selection Method and Pin Functions Switches as follows according to combinations of SCR TE bit of SCI3, and the P77DDR bit. TE P77DDR Pin function 0 P77 input pin 0 1 P77 output pin 1 -- TxD3 output pin P76/RxD3 Switches as follows according to combinations of SCR RE bit of SCI3 and the P76DDR bit. RE P76DDR Pin function 0 P76 input pin 0 1 P76 output pin 1 -- RxD3 I/O pin P75/SCK3 Switches as follows according to combinations of SMR C/A bit of SCI3, SCR CKE0 and CKE1 bits, and the P75DDR bit. CKE1 C/A CKE0 P75DDR Pin function 0 P75 input pin 0 1 P75 output pin 0 1 -- SCK3 output pin 0 1 -- -- SCK3 output pin 1 -- -- -- SCK3 input pin P74/MRES Switches as follows according to combinations of SYSCR MRESE bit and the P74DDR bit. MRESE P74DDR Pin function 0 P74 input pin 0 1 P74 output pin 1 -- MRES input pin 468 Pin P73/CS7 Selection Method and Pin Functions Switches as follows according to combinations of operating mode and the P73DDR bit. Operating Mode P73DDR Pin function 0 P73 input pin Modes 4 to 6 1 CS7 output pin 0 P73 input pin Mode 7 1 P73 output pin P72/CS6 Switches as follows according to combinations of operating mode and the P72DDR bit. Operating Mode P72DDR Pin function Modes 4 to 6 0 P72 input pin 1 CS6 output pin 0 P72 input pin Mode 7 1 P72 output pin -- TMO0 output P71/CS5 Switches as follows according to operating mode and P71DDR. Operating Mode P71DDR Pin function 0 P71 input Pin Modes 4 to 6 1 CS5 output 0 P71 input pin Mode 7 1 P71 output pin P70/CS4 Switches as follows according to operating mode and P70DDR. Operating Mode P70DDR Pin function 0 P70 input pin Modes 4 to 6 1 CS4 output 0 P70 input pin Mode 7 1 P70 output pin 469 10B.6 Port 9 10B.6.1 Overview Port 9 is an 8-bit input-only port. Port 9 pins also function as A/D converter analog input pins (AN8 to AN15). Port 9 pin functions are the same in all operating modes. Figure 10B-5 shows the port 9 pin configuration. Port 9 pins P97 (input) / AN15 (input) P96 (input) / AN14 (input) P95 (input) / AN13 (input) Port 9 P94 (input) / AN12 (input) P93 (input) / AN11 (input) P92 (input) / AN10 (input) P91 (input) / AN9 (input) P90 (input) / AN8 (input) Figure 10B-5 Port 9 Pin Functions 470 10B.6.2 Register Configuration Table 10B-9 shows the port 9 register configuration. Port 9 is an input-only port, and does not have a data direction register or data register. Table 10B-9 Port 9 Registers Name Port 9 register Abbreviation PORT9 R/W R Initial Value Undefined Address* H'FFB8 Note: * Lower 16 bits of the address. Port 9 Register (PORT9): The pin states are always read when a port 9 read is performed. Bit : 7 P97 Initial value : R/W : --* R 6 P96 --* R 5 P95 --* R 4 P94 --* R 3 P93 --* R 2 P92 --* R 1 P91 --* R 0 P90 --* R Note: * Determined by state of pins P97 to P90. 10B.6.3 Pin Functions Port 9 pins function as A/D converter analog input pins (AN8 to AN15). 471 10B.7 Port A 10B.7.1 Overview Port A is a 4-bit I/O port. Port A pins also function as address bus outputs and SCI2 I/O pins (SCK2, RxD2, and TxD2). The pin functions change according to the operating mode. Port A has a built-in MOS input pull-up function that can be controlled by software. Figure 10B-6 shows the port A pin configuration. Port A pins PA3/A19/SCK2 Port A PA2/A18/RxD2 PA1/A17/TxD2 PA0/A16 Pin functions in modes 4 to 6 PA3 (I/O) / A19 (output) / SCK2 (I/O) PA2 (I/O) / A18 (output) / RxD2 (input) PA1 (I/O) / A17 (output) / TxD2 (output) PA0 (I/O) / A16 (output) Pin functions in mode 7 PA3 (I/O) / SCK2 (output) PA2 (I/O) / RxD2 (input) PA1 (I/O) / TxD2 (output) PA0 (I/O) Figure 10B-6 Port A Pin Functions 472 10B.7.2 Register Configuration Table 10B-10 shows the port A register configuration. Table 10B-10 Port A Registers Name Port A data direction register Port A data register Port A register Port A MOS pull-up control register Port A open-drain control register Abbreviation PADDR PADR PORTA PAPCR PAODR R/W W R/W R R/W R/W Initial Value* 2 H'0 H'0 Undefined H'0 H'0 Address* 1 H'FE39 H'FF09 H'FFB9 H'FE40 H'FE47 Notes: *1 Lower 16 bits of the address. *2 Value of bits 3 to 0. Port A Data Direction Register (PADDR) Bit : 7 -- 6 -- 5 -- 4 -- 3 2 1 0 PA3DDR PA2DDR PA1DDR PA0DDR 0 W 0 W 0 W 0 W Initial value : Undefined Undefined Undefined Undefined R/W : -- -- -- -- PADDR is an 8-bit write-only register, the individual bits of which specify input or output for the pins of port A. PADDR cannot be read; if it is, an undefined value will be read. Bits 7 and 6 are reserved; they return an undetermined value if read. PADDR is initialized to H'0 (bits 3 to 0) by a power-on reset, and in hardware standby mode. It retains its prior state by a manual reset or in software standby mode. The OPE bit in SBYCR is used to select whether the address output pins retain their output state or become high-impedance when a transition is made to software standby mode. * Modes 4 to 6 The corresponding port A pins become address outputs in accordance with the setting of bits AE3 to AE0 in PFCR, irrespective of the value of bits PA4DDR to PA0DDR. When pins are not used as address outputs, setting a PADDR bit to 1 makes the corresponding port A pin an output port, while clearing the bit to 0 makes the pin an input port. * Mode 7 Setting a PADDR bit to 1 makes the corresponding port A pin an output port, while clearing the bit to 0 makes the pin an input port. 473 Port A Data Register (PADR) Bit : 7 -- 6 -- 5 -- 4 -- 3 PA3DR 0 R/W 2 PA2DR 0 R/W 1 PA1DR 0 R/W 0 PA0DR 0 R/W Initial value : Undefined Undefined Undefined Undefined R/W : -- -- -- -- PADR is an 8-bit readable/writable register that stores output data for the port A pins (PA7 to PA0). Bits 7 to 4 are reserved; they return an undetermined value if read, and cannot be modified. PADR is initialized to H'0 (bits 3 to 0) by a powr-on reset, and in hardware standby mode. It retains its prior state by a manual reset or in software standby mode. Port A Register (PORTA) Bit : 7 -- 6 -- 5 -- 4 -- 3 PA3 --* R 2 PA2 --* R 1 PA1 --* R 0 PA0 --* R Initial value : Undefined Undefined Undefined Undefined R/W : -- -- -- -- Note: * Determined by state of pins PA3 to PA0. PORTA is an 8-bit read-only register that shows the pin states. It cannot be written to. Writing of output data for the port A pins (PA7 to PA0) must always be performed on PADR. Bits 7 to 4 are reserved; they return an undetermined value if read, and cannot be modified. If a port A read is performed while PADDR bits are set to 1, the PADR values are read. If a port A read is performed while PADDR bits are cleared to 0, the pin states are read. After a power-on reset and in hardware standby mode, PORTA contents are determined by the pin states, as PADDR and PADR are initialized. PORTA retains its prior state by a manual reset or in software standby mode. 474 Port A MOS Pull-Up Control Register (PAPCR) Bit : 7 -- 6 -- 5 -- 4 -- 3 2 1 0 PA3PCR PA2PCR PA1PCR PA0PCR 0 R/W 0 R/W 0 R/W 0 R/W Initial value : Undefined Undefined Undefined Undefined R/W : -- -- -- -- PAPCR is an 8-bit readable/writable register that controls the MOS input pull-up function incorporated into port A on an individual bit basis. Bits 7 to 4 are reserved; they return an undetermined value if read, and cannot be modified. In modes 4 to 6, if a pin is in the input state in accordance with the settings in PFCR, in the SCI's SCMR, SMR, and SCR, and in DDR, setting the corresponding PAPCR bit to 1 turns on the MOS input pull-up for that pin. In mode 7, if a pin is in the input state in accordance with the settings in the SCI's SCMR, SMR, and SCR, and in DDR, setting the corresponding PAPCR bit to 1 turns on the MOS input pull-up for that pin. PAPCR is initialized by a manual reset or to H'0 (bits 3 to 0) by a power-on reset, and in hardware standby mode. It retains its prior state in software standby mode. Port A Open Drain Control Register (PAODR) Bit : 7 -- 6 -- 5 -- 4 -- 3 2 1 0 PA3ODR PA2ODR PA1ODR PA0ODR 0 R/W 0 R/W 0 R/W 0 R/W Initial value : Undefined Undefined Undefined Undefined R/W : -- -- -- -- PAODR is an 8-bit readable/writable register that controls whether PMOS is on or off for each port A pin (PA7 to PA0). Bits 7 to 4 are reserved; they return an undetermined value if read, and cannot be modified. When pins are not address outputs in accordance with the setting of bits AE3 to AE0 in PFCR, setting a PAODR bit makes the corresponding port A pin an NMOS open-drain output, while clearing the bit to 0 makes the pin a CMOS output. PAODR is initialized to H'0 (bits 3 to 0) by a power-on reset, and in hardware standby mode. It retains its prior state by a manual reset or in software standby mode. 475 10B.7.3 Pin Functions Modes 4 to 6: In modes 4 to 6, port A pins function as address outputs according to the setting of AE3 to AE0 in PFCR; when they do not function as address outputs, the pins function as SCI I/O pins and I/O ports. Port A pin functions in modes 4 to 6 are shown in figure 10B-7. PA3 (I/O) / A19 (output) / SCK2 (I/O) Port A PA2 (I/O) / A18 (output) / RxD2 (input) PA1 (I/O) / A17 (output) / TxD2 (output) PA0 (I/O) / A16 (output) Figure 10B-7 Port A Pin Functions (Modes 4 to 6) Mode 7: In mode 7, port A pins function as I/O ports and SCI2 I/O pins (SCK2, TxD2, and RxD2). Input or output can be specified for each pin on an individual bit basis. Setting a PADDR bit to 1 makes the corresponding port A pin an output port, while clearing the bit to 0 makes the pin an input port. Port A pin functions are shown in figure 10B-8. PA3 (I/O) / SCK2 (I/O) Port A PA2 (I/O) / RxD2 (input) PA1 (I/O) / TxD2 (output) PA0 (I/O) Figure 10B-8 Port A Pin Functions (Mode 7) 476 10B.7.4 MOS Input Pull-Up Function Port A has a built-in MOS input pull-up function that can be controlled by software. MOS input pull-up can be specified as on or off on an individual bit basis. In modes 4 to 6, if a pin is in the input state in accordance with the settings in PFCR, in the SCI's SCMR, SMR, and SCR, and in DDR, setting the corresponding PAPCR bit to 1 turns on the MOS input pull-up for that pin. In mode 7, if a pin is in the input state in accordance with the settings in the SCI's SCMR, SMR, and SCR, and in DDR, setting the corresponding PAPCR bit to 1 turns on the MOS input pull-up for that pin. The MOS input pull-up function is in the off state after a power-on reset, and in hardware standby mode. The prior state is retained by a manual reset or in software standby mode. Table 10B-11 summarizes the MOS input pull-up states. Table 10B-11 MOS Input Pull-Up States (Port A) Pin States Power-On Reset Hardware Standby Mode OFF Manual Reset OFF ON/OFF Software Standby Mode OFF ON/OFF In Other Operations OFF ON/OFF Address output or OFF SCI output Other than above Legend: OFF : MOS input pull-up is always off. ON/OFF : On when PADDR = 0 and PAPCR = 1; otherwise off. 477 10B.8 Port B 10B.8.1 Overview Port B is an 8-bit I/O port. Port B pins also function as TPU I/O pins (TIOCA3, TIOCB3, TIOCC3, TIOCD3, TIOCA4, TIOCB4, TIOCA5, and TIOCB5) and as address outputs; the pin functions change according to the operating mode. Port B has a built-in MOS input pull-up function that can be controlled by software. Figure 10B-9 shows the port B pin configuration. Port B pins PB7/A15/TIOCB5 PB6/A14/TIOCA5 PB5/A13/TIOCB4 PB4/A12/TIOCA4 Port B PB3/A11/TIOCD3 PB2/A10/TIOCC3 PB1/A9 /TIOCB3 PB0/A8 /TIOCA3 Pin functions in modes 4 to 6 PB7 (I/O) / A15 (output) / TIOCB5 (I/O) PB6 (I/O) / A14 (output) / TIOCA5 (I/O) PB5 (I/O) / A13 (output) / TIOCB4 (I/O) PB4 (I/O) / A12 (output) / TIOCA4 (I/O) PB3 (I/O) / A11 (output) / TIOCD3 (I/O) PB2 (I/O) / A10 (output) / TIOCC3 (I/O) PB1 (I/O) / A9 (output) / TIOCB3 (I/O) PB0 (I/O) / A8 (output) / TIOCA3 (I/O) Pin functions in mode 7 PB7 (I/O) / TIOCB5 (I/O) PB6 (I/O) / TIOCA5 (I/O) PB5 (I/O) / TIOCB4 (I/O) PB4 (I/O) / TIOCA4 (I/O) PB3 (I/O) / TIOCD3 (I/O) PB2 (I/O) / TIOCC3 (I/O) PB1 (I/O) / TIOCB3 (I/O) PB0 (I/O) / TIOCA3 (I/O) Figure 10B-9 Port B Pin Functions 478 10B.8.2 Register Configuration Table 10B-12 shows the port B register configuration. Table 10B-12 Port B Registers Name Port B data direction register Port B data register Port B register Port B MOS pull-up control register Port B open-drain control register Note: * Lower 16 bits of the address. Abbreviation PBDDR PBDR PORTB PBPCR PBODR R/W W R/W R R/W R/W Initial Value H'00 H'00 Undefined H'00 H'00 Address* H'FE3A H'FF0A H'FFBA H'FE41 H'FE48 Port B Data Direction Register (PBDDR) Bit : 7 6 5 4 3 2 1 0 PB7DDR PB6DDR PB5DDR PB4DDR PB3DDR PB2DDR PB1DDR PB0DDR Initial value : R/W : 0 W 0 W 0 W 0 W 0 W 0 W 0 W 0 W PBDDR is an 8-bit write-only register, the individual bits of which specify input or output for the pins of port B. PBDDR cannot be read; if it is, an undefined value will be read. PBDDR is initialized to H'00 by a power-on reset, and in hardware standby mode. It retains its prior state by a manual reset or in software standby mode. The OPE bit in SBYCR is used to select whether the address output pins retain their output state or become high-impedance when a transition is made to software standby mode. * Modes 4 to 6 The corresponding port B pins become address outputs in accordance with the setting of bits AE3 to AE0 in PFCR, irrespective of the value of the PBDDR bits. When pins are not used as address outputs, setting a PBDDR bit to 1 makes the corresponding port B pin an output port, while clearing the bit to 0 makes the pin an input port. * Mode 7 Setting a PBDDR bit to 1 makes the corresponding port B pin an output port, while clearing the bit to 0 makes the pin an input port. 479 Port B Data Register (PBDR) Bit : 7 PB7DR Initial value : R/W : 0 R/W 6 PB6DR 0 R/W 5 PB5DR 0 R/W 4 PB4DR 0 R/W 3 PB3DR 0 R/W 2 PB2DR 0 R/W 1 PB1DR 0 R/W 0 PB0DR 0 R/W PBDR is an 8-bit readable/writable register that stores output data for the port B pins (PB7 to PB0). PBDR is initialized to H'00 by a power-on reset, and in hardware standby mode. It retains its prior state by a manual reset or in software standby mode. Port B Register (PORTB) Bit : 7 PB7 Initial value : R/W : --* R 6 PB6 --* R 5 PB5 --* R 4 PB4 --* R 3 PB3 --* R 2 PB2 --* R 1 PB1 --* R 0 PB0 --* R Note: * Determined by state of pins PB7 to PB0. PORTB is an 8-bit read-only register that shows the pin states. It cannot be written to. Writing of output data for the port B pins (PB7 to PB0) must always be performed on PBDR. If a port B read is performed while PBDDR bits are set to 1, the PBDR values are read. If a port B read is performed while PBDDR bits are cleared to 0, the pin states are read. After a power-on reset and in hardware standby mode, PORTB contents are determined by the pin states, as PBDDR and PBDR are initialized. PORTB retains its prior state in software standby mode. 480 Port B MOS Pull-Up Control Register (PBPCR) Bit : 7 6 5 4 3 2 1 0 PB7PCR PB6PCR PB5PCR PB4PCR PB3PCR PB2PCR PB1PCR PB0PCR Initial value : R/W : 0 R/W 0 R/W 0 R/W 0 R/W 0 R/W 0 R/W 0 R/W 0 R/W PBPCR is an 8-bit readable/writable register that controls the MOS input pull-up function incorporated into port B on an individual bit basis. In modes 4 to 6, if a pin is in the input state in accordance with the settings in PFCR, in the TPU's TIOR, and in DDR, setting the corresponding PBPCR bit to 1 turns on the MOS input pull-up for that pin. In mode 7, if a pin is in the input state in accordance with the settings in the TPU's TIOR and in DDR, setting the corresponding PBPCR bit to 1 turns on the MOS input pull-up for that pin. PBPCR is initialized to H'00 by a power-on reset, and in hardware standby mode. It retains its prior state by a manual reset or in software standby mode. Port B Open Drain Control Register (PBODR) Bit : 7 6 5 4 3 2 1 0 PB7ODR PB6ODR PB5ODR PB4ODR PB3ODR PB2ODR PB1ODR PB0ODR Initial value : R/W : 0 R/W 0 R/W 0 R/W 0 R/W 0 R/W 0 R/W 0 R/W 0 R/W PBODR is an 8-bit readable/writable register that controls the PMOS on/off state for each port B pin (PB7 to PB0). When pins are not address outputs in accordance with the setting of bits AE3 to AE0 in PFCR, setting a PBODR bit makes the corresponding port B pin an NMOS open-drain output, while clearing the bit to 0 makes the pin a CMOS output. PBODR is initialized to H'00 by a power-on reset, and in hardware standby mode. It retains its prior state by a manual reset or in software standby mode. 481 10B.8.3 Pin Functions Modes 4 to 6: In modes 4 to 6, the corresponding port B pins become address outputs in accordance with the setting of bits AE3 to AE0 in PFCR. When pins are not used as address outputs, they function as TPU I/O pins and I/O ports. Port B pin functions in modes 4 to 6 are shown in figure 10B-10. PB7 (I/O) / A15 (output) / TIOCB5 (I/O) PB6 (I/O) / A14 (output) / TIOCA5 (I/O) PB5 (I/O) / A13 (output) / TIOCB4 (I/O) Port B PB4 (I/O) / A12 (output) / TIOCA4 (I/O) PB3 (I/O) / A11 (output) / TIOCD3 (I/O) PB2 (I/O) / A10 (output) / TIOCC3 (I/O) PB1 (I/O) / A9 (output) / TIOCB3 (I/O) PB0 (I/O) / A8 (output) / TIOCA3 (I/O) Figure 10B-10 Port B Pin Functions (Modes 4 to 6) Mode 7: In mode 7, port B pins function as I/O ports and TPU I/O pins (TIOCA3, TIOCB3, TIOCC3, TIOCD3, TIOCA4, TIOCB4, TIOCA5, and TIOCB5). Input or output can be specified for each pin on an individual bit basis. Setting a PBDDR bit to 1 makes the corresponding port B pin an output port, while clearing the bit to 0 makes the pin an input port. Port B pin functions in mode 7 are shown in figure 10B-11. PB7 (I/O) / TIOCB5 (I/O) PB6 (I/O) / TIOCA5 (I/O) PB5 (I/O) / TIOCB4 (I/O) Port B PB4 (I/O) / TIOCA4 (I/O) PB3 (I/O) / TIOCD3 (I/O) PB2 (I/O) / TIOCC3 (I/O) PB1 (I/O) / TIOCB3 (I/O) PB0 (I/O) / TIOCA3 (I/O) Figure 10B-11 Port B Pin Functions (Mode 7) 482 10B.8.4 MOS Input Pull-Up Function Port B has a built-in MOS input pull-up function that can be controlled by software. MOS input pull-up can be specified as on or off on an individual bit basis. In modes 4 to 6, if a pin is in the input state in accordance with the settings in PFCR, in the TPU's TIOR, and in DDR, setting the corresponding PBPCR bit to 1 turns on the MOS input pull-up for that pin. In mode 7, if a pin is in the input state in accordance with the settings in the TPU's TIOR and in DDR, setting the corresponding PBPCR bit to 1 turns on the MOS input pull-up for that pin. The MOS input pull-up function is in the off state after a power-on reset, and in hardware standby mode. The prior state is retained by a manual reset or in software standby mode. Table 10B-13 summarizes the MOS input pull-up states. Table 10B-13 MOS Input Pull-Up States (Port B) Pin States Address output or TPU output Other than above Power-On Reset OFF Hardware Standby Mode OFF Manual Reset OFF ON/OFF Software Standby Mode OFF ON/OFF In Other Operations OFF ON/OFF Legend: OFF : MOS input pull-up is always off. ON/OFF : On when PBDDR = 0 and PBPCR = 1; otherwise off. 483 10B.9 Port C 10B.9.1 Overview Port C is an 8-bit I/O port. Port C has an address bus output function. The pin functions change according to the operating mode. Port C has a built-in MOS input pull-up function that can be controlled by software. Figure 10B-12 shows the port C pin configuration. Port C pins PC7/A7 PC6/A6 PC5/A5 Port C PC4/A4 PC3/A3 PC2/A2 PC1/A1 PC0/A0 Pin functions in modes 4 to 6 A7 (output) A6 (output) A5 (output) A4 (output) A3 (output) A2 (output) A1 (output) A0 (output) Pin functions in mode 7 PC7 (I/O) PC6 (I/O) PC5 (I/O) PC4 (I/O) PC3 (I/O) PC2 (I/O) PC1 (I/O) PC0 (I/O) Figure 10B-12 Port C Pin Functions 484 10B.9.2 Register Configuration Table 10B-14 shows the port C register configuration. Table 10B-14 Port C Registers Name Port C data direction register Port C data register Port C register Port C MOS pull-up control register Port C open-drain control register Note: * Lower 16 bits of the address. Abbreviation PCDDR PCDR PORTC PCPCR PCODR R/W W R/W R R/W R/W Initial Value H'00 H'00 Undefined H'00 H'00 Address* H'FE3B H'FF0B H'FFBB H'FE42 H'FE49 Port C Data Direction Register (PCDDR) Bit : 7 6 5 4 3 2 1 0 PC7DDR PC6DDR PC5DDR PC4DDR PC3DDR PC2DDR PC1DDR PC0DDR Initial value : R/W : 0 W 0 W 0 W 0 W 0 W 0 W 0 W 0 W PCDDR is an 8-bit write-only register, the individual bits of which specify input or output for the pins of port C. PCDDR cannot be read; if it is, an undefined value will be read. PCDDR is initialized to H'00 by a power-on reset, and in hardware standby mode. It retains its prior state by a manual reset or in software standby mode. The OPE bit in SBYCR is used to select whether the address output pins retain their output state or become high-impedance when the mode is changed to software standby mode. * Modes 4 and 5 The corresponding port C pins are address outputs irrespective of the value of the PCDDR bits. * Mode 6 Setting a PCDDR bit to 1 makes the corresponding port C pin an address output, while clearing the bit to 0 makes the pin an input port. * Mode 7 Setting a PCDDR bit to 1 makes the corresponding port C pin an output port, while clearing the bit to 0 makes the pin an input port. 485 Port C Data Register (PCDR) Bit : 7 PC7DR Initial value : R/W : 0 R/W 6 PC6DR 0 R/W 5 PC5DR 0 R/W 4 PC4DR 0 R/W 3 PC3DR 0 R/W 2 PC2DR 0 R/W 1 PC1DR 0 R/W 0 PC0DR 0 R/W PCDR is an 8-bit readable/writable register that stores output data for the port C pins (PC7 to PC0). PCDR is initialized to H'00 by a power-on reset, and in hardware standby mode. It retains its prior state by a manual reset or in software standby mode. Port C Register (PORTC) Bit : 7 PC7 Initial value : R/W : --* R 6 PC6 --* R 5 PC5 --* R 4 PC4 --* R 3 PC3 --* R 2 PC2 --* R 1 PC1 --* R 0 PC0 --* R Note: * Determined by state of pins PC7 to PC0. PORTC is an 8-bit read-only register that shows the pin states. It cannot be written to. Writing of output data for the port C pins (PC7 to PC0) must always be performed on PCDR. If a port C read is performed while PCDDR bits are set to 1, the PCDR values are read. If a port C read is performed while PCDDR bits are cleared to 0, the pin states are read. After a power-on reset and in hardware standby mode, PORTC contents are determined by the pin states, as PCDDR and PCDR are initialized. PORTC retains its prior state by a manual reset or in software standby mode. 486 Port C MOS Pull-Up Control Register (PCPCR) Bit : 7 6 5 4 3 2 1 0 PC7PCR PC6PCR PC5PCR PC4PCR PC3PCR PC2PCR PC1PCR PC0PCR Initial value : R/W : 0 R/W 0 R/W 0 R/W 0 R/W 0 R/W 0 R/W 0 R/W 0 R/W PCPCR is an 8-bit readable/writable register that controls the MOS input pull-up function incorporated into port C on an individual bit basis. In modes 6 and 7, if PCPCR is set to 1 when the port is in the input state in accordance with the settings of PCDDR, the MOS input pull-up is set to ON. PCPCR is initialized to H'00 by a power-on reset, and in hardware standby mode. It retains its prior state by a manual reset or in software standby mode. Port C Open Drain Control Register (PCODR) Bit : 7 0 R/W 6 0 R/W 5 0 R/W 4 0 R/W 3 0 R/W 2 0 R/W 1 0 R/W 0 0 R/W PC7ODR PC6ODR PC5ODR PC4ODR PC3ODR PC2ODR PC1ODR PC0ODR Initial value : R/W : PCDDR is an 8-bit read/write register and controls PMOS on/off of each pin (PC7 to PC0) of port C. If PCODR is set to 1 by setting AE3 to AE0 in PFCR in mode other than address output mode, port C pins function as NMOS open drain outputs and when the setting is cleared to 0, the pins function as CMOS outputs. PCODR is initialized to H'00 in power-on reset mode or hardware standby mode. PCODR retains the last state in manual reset mode or software standby mode. 487 10B.9.3 Pin Functions for Each Mode (1) Modes 4 and 5 In modes 4 and 5, port C pins function as address outputs automatically. Figure 10B-13 shows the port C pin functions. A7 (output) A6 (output) A5 (output) Port C A4 (output) A3 (output) A2 (output) A1 (output) A0 (output) Figure 10B-13 Port C Pin Functions (Modes 4 and 5) (2) Mode 6 In mode 6, port C pints function as address outputs or input ports and I/O can be specified in bit units. When each bit in PCDDR is set to 1, the corresponding pin functions as an address output and when the bit cleared to 0, the pin functions as an input port. Figure 10B-14 shows the port C pin functions. PCDDR= 1 A7 (output) A6 (output) A5 (output) Port C A4 (output) A3 (output) A2 (output) A1 (output) A0 (output) PCDDR= 0 PC7 (input) PC6 (input) PC5 (input) PC4 (input) PC3 (input) PC2 (input) PC1 (input) PC0 (input) Figure 10B-14 Port C Pin Functions (Mode 6) 488 (3) Mode 7 In mode 7, port C pins function as I/O ports and I/O can be specified for each pin in bit units. When each bit in PCDDR is set to 1, the corresponding pin functions as an output port and when the bit is cleared to 0, the pin functions as an input port. Figure 10B-15 shows the port C pin functions. PC7 (I/O) PC6 (I/O) PC5 (I/O) Port C PC4 (I/O) PC3 (I/O) PC2 (I/O) PC1 (I/O) PC0 (I/O) Figure 10B-15 Port C Pin Functions (Mode 7) 489 10B.9.4 MOS Input Pull-Up Function Port C has a built-in MOS input pull-up function that can be controlled by software. This MOS input pull-up function can be used in modes 6 and 7, and can be specified as on or off on an individual bit basis. In modes 6 and 7, when PCPCR is set to 1 in the input state by setting of PCDDR, the MOS input pull-up is set to ON. The MOS input pull-up function is in the off state after a power-on reset, and in hardware standby mode. The prior state is retained by a manual reset or in software standby mode. Table 10B-15 summarizes the MOS input pull-up states. Table 10B-15 MOS Input Pull-Up States (Port C) Pin States Address output Other than above Power-On Reset OFF Hardware Standby Mode OFF Manual Reset OFF ON/OFF Software Standby Mode OFF ON/OFF In Other Operations OFF ON/OFF Legend: OFF : MOS input pull-up is always off. ON/OFF : On when PCDDR = 0 and PCPCR = 1; otherwise off. 490 10B.10 Port D 10B.10.1 Overview Port D is an 8-bit I/O port. Port D has a data bus I/O function, and the pin functions change according to the operating mode. Port D has a built-in MOS input pull-up function that can be controlled by software. Figure 10B-16 shows the port D pin configuration. Port D pins PD7 / D15 PD6 / D14 PD5 / D13 Port D PD4 / D12 PD3 / D11 PD2 / D10 PD1/ D9 PD0/ D8 Pin functions in modes 4 to 6 D15 (I/O) D14 (I/O) D13 (I/O) D12 (I/O) D11 (I/O) D10 (I/O) D9 D8 (I/O) (I/O) Pin functions in mode 7 PD7 (I/O) PD6 (I/O) PD5 (I/O) PD4 (I/O) PD3 (I/O) PD2 (I/O) PD1 (I/O) PD0 (I/O) Figure 10B-16 Port D Pin Functions 491 10B.10.2 Register Configuration Table 10B-16 shows the port D register configuration. Table 10B-16 Port D Registers Name Port D data direction register Port D data register Port D register Port D MOS pull-up control register Note: * Lower 16 bits of the address. Abbreviation PDDDR PDDR PORTD PDPCR R/W W R/W R R/W Initial Value H'00 H'00 Undefined H'00 Address* H'FE3C H'FF0C H'FFBC H'FE43 Port D Data Direction Register (PDDDR) Bit : 7 6 5 4 3 2 1 0 PD7DDR PD6DDR PD5DDR PD4DDR PD3DDR PD2DDR PD1DDR PD0DDR Initial value : R/W : 0 W 0 W 0 W 0 W 0 W 0 W 0 W 0 W PDDDR is an 8-bit write-only register, the individual bits of which specify input or output for the pins of port D. PDDDR cannot be read; if it is, an undefined value will be read. PDDDR is initialized to H'00 by a power-on reset, and in hardware standby mode. It retains its prior state by a manual reset or in software standby mode. * Modes 4 to 6 The input/output direction specification by PDDDR is ignored, and port D is automatically designated for data I/O. * Mode 7 Setting a PDDDR bit to 1 makes the corresponding port D pin an output port, while clearing the bit to 0 makes the pin an input port. 492 Port D Data Register (PDDR) Bit : 7 PD7DR Initial value : R/W : 0 R/W 6 PD6DR 0 R/W 5 PD5DR 0 R/W 4 PD4DR 0 R/W 3 PD3DR 0 R/W 2 PD2DR 0 R/W 1 PD1DR 0 R/W 0 PD0DR 0 R/W PDDR is an 8-bit readable/writable register that stores output data for the port D pins (PD7 to PD0). PDDR is initialized to H'00 by a power-on reset, and in hardware standby mode. It retains its prior state by a manual reset or in software standby mode. Port D Register (PORTD) Bit : 7 PD7 Initial value : R/W : --* R 6 PD6 --* R 5 PD5 --* R 4 PD4 --* R 3 PD3 --* R 2 PD2 --* R 1 PD1 --* R 0 PD0 --* R Note: * Determined by state of pins PD7 to PD0. PORTD is an 8-bit read-only register that shows the pin states. It cannot be written to. Writing of output data for the port D pins (PD7 to PD0) must always be performed on PDDR. If a port D read is performed while PDDDR bits are set to 1, the PDDR values are read. If a port D read is performed while PDDDR bits are cleared to 0, the pin states are read. After a power-on reset and in hardware standby mode, PORTD contents are determined by the pin states, as PDDDR and PDDR are initialized. PORTD retains its prior state by a manual reset or in software standby mode. 493 Port D MOS Pull-Up Control Register (PDPCR) Bit : 7 6 5 4 3 2 1 0 PD7PCR PD6PCR PD5PCR PD4PCR PD3PCR PD2PCR PD1PCR PD0PCR Initial value : R/W : 0 R/W 0 R/W 0 R/W 0 R/W 0 R/W 0 R/W 0 R/W 0 R/W PDPCR is an 8-bit readable/writable register that controls the MOS input pull-up function incorporated into port D on an individual bit basis. When a PDDDR bit is cleared to 0 (input port setting) in mode 7, setting the corresponding PDPCR bit to 1 turns on the MOS input pull-up for the corresponding pin. PDPCR is initialized to H'00 by a power-on reset, and in hardware standby mode. It retains its prior state by a manual reset or in software standby mode. 10B.10.3 Pin Functions Modes 4 to 6: In modes 4 to 6, port D pins are automatically designated as data I/O pins. Port D pin functions in modes 4 to 6 are shown in figure 10B-17. D15 (I/O) D14 (I/O) D13 (I/O) Port D D12 (I/O) D11 (I/O) D10 (I/O) D9 D8 (I/O) (I/O) Figure 10B-17 Port D Pin Functions (Modes 4 to 6) Mode 7: In mode 7, port D pins function as I/O ports. Input or output can be specified for each pin on an individual bit basis. Setting a PDDDR bit to 1 makes the corresponding port D pin an output port, while clearing the bit to 0 makes the pin an input port. 494 Port D pin functions in mode 7 are shown in figure 10B-18. PD7 (I/O) PD6 (I/O) PD5 (I/O) Port D PD4 (I/O) PD3 (I/O) PD2 (I/O) PD1 (I/O) PD0 (I/O) Figure 10B-18 Port D Pin Functions (Mode 7) 10B.10.4 MOS Input Pull-Up Function Port D has a built-in MOS input pull-up function that can be controlled by software. This MOS input pull-up function can be used in mode 7, and can be specified as on or off on an individual bit basis. When a PDDDR bit is cleared to 0 in mode 7, setting the corresponding PDPCR bit to 1 turns on the MOS input pull-up for that pin. The MOS input pull-up function is in the off state after a power-on reset, and in hardware standby mode. The prior state is retained by a manual reset or in software standby mode. Table 10B-17 summarizes the MOS input pull-up states. Table 10B-17 MOS Input Pull-Up States (Port D) Modes 4 to 6 7 Power-On Reset OFF Hardware Standby Mode OFF Manual Reset OFF ON/OFF Software Standby Mode OFF ON/OFF In Other Operations OFF ON/OFF Legend: OFF : MOS input pull-up is always off. ON/OFF : On when PDDDR = 0 and PDPCR = 1; otherwise off. 495 10B.11 Port E 10B.11.1 Overview Port E is an 8-bit I/O port. Port E has a data bus I/O function, and the pin functions change according to the operating mode and whether 8-bit or 16-bit bus mode is selected. Port E has a built-in MOS input pull-up function that can be controlled by software. Figure 10B-19 shows the port E pin configuration. Port E pins PE7/ D7 PE6/ D6 PE5/ D5 Port E PE4/ D4 PE3/ D3 PE2/ D2 PE1/ D1 PE0/ D0 Pin functions in modes 4 to 6 PE7 (I/O) / D7 (I/O) PE6 (I/O) / D6 (I/O) PE5 (I/O) / D5 (I/O) PE4 (I/O) / D4 (I/O) PE3 (I/O) / D3 (I/O) PE2 (I/O) / D2 (I/O) PE1 (I/O) / D1 (I/O) PE0 (I/O) / D0 (I/O) Pin functions in mode 7 PE7 (I/O) PE6 (I/O) PE5 (I/O) PE4 (I/O) PE3 (I/O) PE2 (I/O) PE1 (I/O) PE0 (I/O) Figure 10B-19 Port E Pin Functions 496 10B.11.2 Register Configuration Table 10B-18 shows the port E register configuration. Table 10B-18 Port E Registers Name Port E data direction register Port E data register Port E register Port E MOS pull-up control register Note: * Lower 16 bits of the address. Abbreviation PEDDR PEDR PORTE PEPCR R/W W R/W R R/W Initial Value H'00 H'00 Undefined H'00 Address* H'FE3D H'FF0D H'FFBD H'FE44 Port E Data Direction Register (PEDDR) Bit : 7 0 W 6 0 W 5 0 W 4 0 W 3 0 W 2 0 W 1 0 W 0 0 W PE7DDR PE6DDR PE5DDR PE4DDR PE3DDR PE2DDR PE1DDR PE0DDR Initial value : R/W : PEDDR is an 8-bit write-only register, the individual bits of which specify input or output for the pins of port E. PEDDR cannot be read; if it is, an undefined value will be read. PEDDR is initialized to H'00 by a power-on reset, and in hardware standby mode. It retains its prior state by a manual reset or in software standby mode. * Modes 4 to 6 When 8-bit bus mode has been selected, port E pins function as I/O ports. Setting a PEDDR bit to 1 makes the corresponding port E pin an output port, while clearing the bit to 0 makes the pin an input port. When 16-bit bus mode has been selected, the input/output direction specification by PEDDR is ignored, and port E is designated for data I/O. For details of 8-bit and 16-bit bus modes, see section 7, Bus Controller. * Mode 7 Setting a PEDDR bit to 1 makes the corresponding port E pin an output port, while clearing the bit to 0 makes the pin an input port. 497 Port E Data Register (PEDR) Bit : 7 PE7DR Initial value : R/W : 0 R/W 6 PE6DR 0 R/W 5 PE5DR 0 R/W 4 PE4DR 0 R/W 3 PE3DR 0 R/W 2 PE2DR 0 R/W 1 PE1DR 0 R/W 0 PE0DR 0 R/W PEDR is an 8-bit readable/writable register that stores output data for the port E pins (PE7 to PE0). PEDR is initialized to H'00 by a power-on reset, and in hardware standby mode. It retains its prior state by a manual reset or in software standby mode. Port E Register (PORTE) Bit : 7 PE7 Initial value : R/W : --* R 6 PE6 --* R 5 PE5 --* R 4 PE4 --* R 3 PE3 --* R 2 PE2 --* R 1 PE1 --* R 0 PE0 --* R Note: * Determined by state of pins PE7 to PE0. PORTE is an 8-bit read-only register that shows the pin states. It cannot be written to. Writing of output data for the port E pins (PE7 to PE0) must always be performed on PEDR. If a port E read is performed while PEDDR bits are set to 1, the PEDR values are read. If a port E read is performed while PEDDR bits are cleared to 0, the pin states are read. After a power-on reset and in hardware standby mode, PORTE contents are determined by the pin states, as PEDDR and PEDR are initialized. PORTE retains its prior state by a manual reset or in software standby mode. 498 Port E MOS Pull-Up Control Register (PEPCR) Bit : 7 6 5 4 3 2 1 0 PE7PCR PE6PCR PE5PCR PE4PCR PE3PCR PE2PCR PE1PCR PE0PCR Initial value : R/W : 0 R/W 0 R/W 0 R/W 0 R/W 0 R/W 0 R/W 0 R/W 0 R/W PEPCR is an 8-bit readable/writable register that controls the MOS input pull-up function incorporated into port E on an individual bit basis. When a PEDDR bit is cleared to 0 (input port setting) with 8-bit bus mode selected in modes 4, 5, or 6, or in mode 7, setting the corresponding PEPCR bit to 1 turns on the MOS input pull-up for the corresponding pin. PEPCR is initialized to H'00 by a power-on reset, and in hardware standby mode. It retains its prior state by a manual reset or in software standby mode. 10B.11.3 Pin Functions Modes 4 to 6: In modes 4 to 6, when 8-bit access is designated and 8-bit bus mode is selected, port E pins are automatically designated as I/O ports. Setting a PEDDR bit to 1 makes the corresponding port E pin an output port, while clearing the bit to 0 makes the pin an input port. When 16-bit bus mode is selected, the input/output direction specification by PEDDR is ignored, and port E is designated for data I/O. Port E pin functions in modes 4 to 6 are shown in figure 10B-20. 8-bit bus mode PE7 (I/O) PE6 (I/O) PE5 (I/O) Port E PE4 (I/O) PE3 (I/O) PE2 (I/O) PE1 (I/O) PE0 (I/O) 16-bit bus mode D7 (I/O) D6 (I/O) D5 (I/O) D4 (I/O) D3 (I/O) D2 (I/O) D1 (I/O) D0 (I/O) Figure 10B-20 Port E Pin Functions (Modes 4 to 6) 499 Mode 7: In mode 7, port E pins function as I/O ports. Input or output can be specified for each pin on a bit-by-bit basis. Setting a PEDDR bit to 1 makes the corresponding port E pin an output port, while clearing the bit to 0 makes the pin an input port. Port E pin functions in mode 7 are shown in figure 10B-21. PE7 (I/O) PE6 (I/O) PE5 (I/O) Port E PE4 (I/O) PE3 (I/O) PE2 (I/O) PE1 (I/O) PE0 (I/O) Figure 10B-21 Port E Pin Functions (Mode 7) 10B.11.4 MOS Input Pull-Up Function Port E has a built-in MOS input pull-up function that can be controlled by software. This MOS input pull-up function can be used in modes 4 to 6 when 8-bit bus mode is selected, or in mode 7, and can be specified as on or off on an individual bit basis. When a PEDDR bit is cleared to 0 in modes 4 to 6 when 8-bit bus mode is selected, or in mode 7, setting the corresponding PEPCR bit to 1 turns on the MOS input pull-up for that pin. The MOS input pull-up function is in the off state after a power-on reset, and in hardware standby mode. The prior state is retained by a manual reset or in software standby mode. Table 10B-19 summarizes the MOS input pull-up states. Table 10B-19 MOS Input Pull-Up States (Port E) Modes 7 4 to 6 8-bit bus 16-bit bus OFF OFF OFF Power-On Reset OFF Hardware Standby Mode OFF Manual Reset ON/OFF Software Standby Mode ON/OFF In Other Operations ON/OFF Legend: OFF : MOS input pull-up is always off. ON/OFF : On when PEDDR = 0 and PEPCR = 1; otherwise off. 500 10B.12 Port F 10B.12.1 Overview Port F is an 8-bit I/O port. Port F pins also function as external interrupt input pins (IRQ2 and IRQ3), A/D trigger input pin (ADTRG), bus control signal input/output pins (AS, RD, HWR, LWR, WAIT, BREQO, BREQ, and BACK), and the system clock (o) output pin. Figure 10B-22 shows the port F pin configuration. Port F pins PF7/ o PF6 /AS PF5 /RD Port F PF4 /HWR PF3 /LWR/ADTRG/IRQ3 PF2 /WAIT/ BREQO PF1 /BACK PF0 /BREQ/IRQ2 Pin functions in modes 4 to 6 PF7 (input) / o (output) AS (output) RD (output) HWR (output) PF3 (I/O) / LWR (output) / ADTRG (input) / IRQ3 (input) PF2 (I/O) / WAIT (input) / BREQO (output) PF1 (I/O) / BACK (output) PF0 (I/O) / BREQ (input) / IRQ2 (input) Pin functions in mode 7 PF7 (input) / o (output) PF6 (I/O) PF5 (I/O) PF4 (I/O) PF3 (I/O) / ADTRG (input) / IRQ3 (input) PF2 (I/O) PF1 (I/O) PF0 (I/O) / IRQ2 (input) Figure 10B-22 Port F Pin Functions 501 10B.12.2 Register Configuration Table 10B-20 shows the port F register configuration. Table 10B-20 Port F Registers Name Port F data direction register Port F data register Port F register Abbreviation PFDDR PFDR PORTF R/W W R/W R Initial Value H'80/H'00* 2 H'00 Undefined Address* 1 H'FE3E H'FF0E H'FFBE Notes: *1 Lower 16 bits of the address. *2 Initial value depends on the mode. Port F Data Direction Register (PFDDR) Bit : 7 6 5 4 3 2 1 0 PF7DDR PF6DDR PF5DDR PF4DDR PF3DDR PF2DDR PF1DDR PF0DDR Modes 4 to 6 Initial value : R/W Mode 7 Initial value : R/W : 0 W 0 W 0 W 0 W 0 W 0 W 0 W 0 W : 1 W 0 W 0 W 0 W 0 W 0 W 0 W 0 W PFDDR is an 8-bit write-only register, the individual bits of which specify input or output for the pins of port F. PFDDR cannot be read; if it is, an undefined value will be read. PFDDR is initialized by a power-on reset, and in hardware standby mode, to H'80 in modes 4 to 6, and to H'00 in mode 7. It retains its prior state by a manual reset or in software standby mode. The OPE bit in SBYCR is used to select whether the bus control output pins retain their output state or become high-impedance when a transition is made to software standby mode. * Modes 4 to 6 Pin PF7 functions as the o output pin when the corresponding PFDDR bit is set to 1, and as an input port when the bit is cleared to 0. The input/output direction specified by PFDDR is ignored for pins PF6 to PF3, which are automatically designated as bus control outputs (AS, RD, HWR, and LWR). Pins PF2 to PF0 are designated as bus control input/output pins (WAIT, BREQO, BACK, and BREQ) by means of bus controller settings. At other times, setting a PFDDR bit to 1 makes the corresponding port F pin an output port, while clearing the bit to 0 makes the pin an input port. 502 * Mode 7 Setting a PFDDR bit to 1 makes the corresponding port F pin PF6 to PF0 an output port, or in the case of pin PF7, the o output pin. Clearing the bit to 0 makes the pin an input port. Port F Data Register (PFDR) Bit : 7 PF7DR Initial value : R/W : 0 R/W 6 PF6DR 0 R/W 5 PF5DR 0 R/W 4 PF4DR 0 R/W 3 PF3DR 0 R/W 2 PF2DR 0 R/W 1 PF1DR 0 R/W 0 PF0DR 0 R/W PFDR is an 8-bit readable/writable register that stores output data for the port F pins (PF7 to PF0). PFDR is initialized to H'00 by a power-on reset, and in hardware standby mode. It retains its prior state by a manual reset or in software standby mode. Port F Register (PORTF) Bit : 7 PF7 Initial value : R/W : --* R 6 PF6 --* R 5 PF5 --* R 4 PF4 --* R 3 PF3 --* R 2 PF2 --* R 1 PF1 --* R 0 PF0 --* R Note: * Determined by state of pins PF7 to PF0. PORTF is an 8-bit read-only register that shows the pin states. It cannot be written to. Writing of output data for the port F pins (PF7 to PF0) must always be performed on PFDR. If a port F read is performed while PFDDR bits are set to 1, the PFDR values are read. If a port F read is performed while PFDDR bits are cleared to 0, the pin states are read. After a power-on reset and in hardware standby mode, PORTF contents are determined by the pin states, as PFDDR and PFDR are initialized. PORTF retains its prior state by a manual reset or in software standby mode. 503 10B.12.3 Pin Functions Port F pins also function as external interrupt input pins (IRQ2 and IRQ3), A/D trigger input pin (ADTRG), bus control signal input/output pins (AS, RD, HWR, LWR, WAIT, BREQO, BREQ, and BACK), and the system clock (o) output pin. The pin functions differ between modes 4 to 6, and mode 7. Port F pin functions are shown in table 10B-21. Table 10B-21 Port F Pin Functions Pin PF7/o Selection Method and Pin Functions The pin function is switched as shown below according to bit PF7DDR. PF7DDR Pin function 0 PF7 input pin 1 o output pin PF6/AS The pin function is switched as shown below according to the combination of the operating mode and bits BREQOE, WAITE, ABW5 to ABW2, and PF2DDR. Operating Mode PF6DDR Pin function Modes 4 to 6 -- AS output pin 0 PF6 input pin Mode 7 1 PF6 output pin PF5/RD The pin function is switched as shown below according to the operating mode and bit PF5DDR. Operating Mode PF5DDR Pin function Modes 4 to 6 -- RD output pin 0 PF5 input pin Mode 7 1 PF5 output pin PF4/HWR The pin function is switched as shown below according to the operating mode and bit PF4DDR. Operating Mode PF4DDR Pin function Modes 4 to 6 -- HWR output pin 0 PF4 input pin Mode 7 1 PF4 output pin 504 Pin Selection Method and Pin Functions PF3/LWR/ADTRG/ The pin function is switched as shown below according to the operating mode, IRQ3 the bus mode, A/D converter bits TRGS1 and TRGS0, and bit PF3DDR. Operating mode Bus mode PF3DDR Pin function 16-bit bus mode -- Modes 4 to 6 8-bit bus mode 0 1 0 Mode 7 -- 1 PF3 output pin LWR output PF3 input pin pin PF3 output PF3 input pin pin ADTRG input pin* 1 IRQ3 input pin* 2 Notes: *1 ADTRG input when TRGS0 = TRGS1 = 1. *2 When used as an external interrupt input pin, do not use as an I/O pin for another function. PF2/ WAIT/ BREQO The pin function is switched as shown below according to the combination of the operating mode and bits BREQOE, WAITE, ABW5 to ABW2, and PF2DDR. Operating Mode BREQOE WAITE PF2DDR Pin function 0 PF2 input pin 0 1 PF2 output pin Modes 4 to 6 0 1 -- WAIT input pin 1 -- -- BREQO output pin 0 PF2 input pin Mode 7 -- -- 1 PF2 output pin PF1/BACK The pin function is switched as shown below according to the combination of the operating mode and bits BRLE and PF1DDR. Operating Mode BRLE PF1DDR Pin function 0 PF1 input pin Modes 4 to 6 0 1 1 -- 0 PF1 input pin PF1 output BACK pin output pin Mode 7 -- 1 PF1 output pin 505 Pin PF0/BREQ/IRQ2 Selection Method and Pin Functions The pin function is switched as shown below according to the combination of the operating mode, and bits BRLE and PF0DDR. Operating Mode BRLE PF0DDR Pin function 0 PF0 input pin Modes 4 to 6 0 1 PF0 output pin 1 -- BREQ input pin IRQ2 input pin 0 PF0 input pin Mode 7 -- 1 PF0 output pin 10B.13 Port G 10B.13.1 Overview Port G is a 5-bit I/O port and also used as external interrupt input pins (IRQ6 and IRQ7) and bus control signal output pins (CS0 to CS3). Figure 10B-23 shows the configuration of port G pins. Port G pin PG4 / CS0 PG3 / CS1 Port G PG2 / CS2 PG1 / CS3 / IRQ7 PG0 / IRQ6 Pin Functions in Modes 4 to 6 PG4 (input) / CS0 (output) PG3 (input) / CS1 (output) PG2 (input) / CS2 (output) PG1 (input) / CS3 (output) / IRQ7 (input) PG0 (I/O) / IRQ6 (input) Pin Functions in Mode 7 PG4 (I/O) PG3 (I/O) PG2 (I/O) PG1 (I/O) / IRQ7 (input) PG0 (I/O) / IRQ6 (input) Figure 10B-23 Port G Pin Functions 506 10B.13.2 Register Configuration Table 10B-22 shows the port G register configuration. Table 10B-22 Port G Registers Name Port G data direction register Port G data register Port G register Abbreviation PGDDR PGDR PORTG R/W W R/W R Initial Value* 2 Address* 1 H'10/H'00* 3 H'00 Undefined H'FE3F H'FF0F H'FFBF Notes: *1 Lower 16 bits of the address. *2 Value of bits 4 to 0. *3 The initial value varies according to the mode. Port G Data Direction Register (PGDDR) Bit Modes 4 and 5 Initial value R/W Modes 6 and 7 Initial value R/W : Undefined Undefined Undefined : -- -- -- 0 W 0 W 0 W 0 W 0 W : Undefined Undefined Undefined : -- -- -- 1 W 0 W 0 W 0 W 0 W : 7 -- 6 -- 5 -- 4 3 2 1 0 PG4DDR PG3DDR PG2DDR PG1DDR PG0DDR PGDDR is an 8-bit write only register and specifies I/O of each pin of port G in bit units. Read processing is invalid. Bits 7 to 5 are reserved bits. When the contents are read, undefined values are read. In modes 4 and 5, the PG4DDR bits are initialized to H'10 (bits 4 to 0) in power-on reset or hardware standby mode, in modes 6 and 7, the bits are initialized to H'00 (bits 4 to 0). In manual reset or software standby mode, PGDDR retains the last status. Use the OPE bit of SBYCR to select whether the bus control output pin retains the output state or becomes the high-impedance when the mode is changed to a software standby mode. * Modes 4 to 6 When PGDDR is set to 1, pins PG4 to PG1 function as bus control signal output pins (CS0 to CS3). When PGDDR is cleared to 0, the pins function as input ports. When PGDDR is set to 1, the PG0 pin functions as an output port, and when PGDDR is cleared to 0, it functions as an input port. 507 * Mode 7 PGDDR to 1 it becomes an output port, and by clearing it to 0 it becomes an input port. Port G Data Register (PGDR) Bit : 7 -- R/W : -- 6 -- -- 5 -- -- 4 PG4DR 0 R/W 3 PG3DR 0 R/W 2 PG2DR 0 R/W 1 PG1DR 0 R/W 0 PG0DR 0 R/W Initial value : Undefined Undefined Undefined PGDR is an 8-bit read/write register and stores output data of port G output pins (PG4 to PG0). Bits 7 to 5 are reserved bits. When the contents are read, undefined values are read. Write processing is invalid. In power-on reset or hardware standby mode, PGDR is initialized to H'00 (bits 4 to 0). In manual reset or software standby mode, PGDR retains the last state. (3) Port G Register (PORTG) Bit : 7 -- R/W : -- 6 -- -- 5 -- -- 4 PG4 --* R 3 PG3 --* R 2 PG2 --* R 1 PG1 --* R 0 PG0 --* R Initial value : Undefined Undefined Undefined Note: * Determined by the state of PG4 to PG0 PORTG is an 8-bit read only register and reflects the pin state. Write processing is invalid. Write processing of output data of port G pins (PG4 to PG0) must be performed for PGDR. Bits 7 to 5 are reserved bits. When the contents are read, undefined values are read. Write processing is invalid. If port G is read when PGDDR is set to 1, the value in PGDR is read. If port G is read when PGDDR is cleared to 0, the pin state is read. In power-on reset or hardware standby mode, port G is determined by the pin state because PGDDR and PGDR are initialized. In manual reset or software standby mode, the last state is retained. 508 10B.13.3 Pin Functions Port G is used also as external interrupt input pins (IRQ6 and IRQ7) and bus control signal output pins (CS0 to CS3). The pin functions are different between modes 4 and 6, and mode 7. Table 10B-23 shows the port G pin functions. Table 10B-23 Port G Pin Functions Pin PG4/CS0 Selection Method and Pin Functions The pin function is switched as shown below according to the operating mode and bit PG4DDR. Operating Mode PG4DDR Pin function 0 PG4 input pin Modes 4 to 6 1 CS0 output pin 0 PG4 input pin Mode 7 1 PG4 output pin PG3/CS1 The pin function is switched as shown below according to the operating mode and bit PG3DDR. Operating Mode PG3DDR Pin function 0 PG3 input pin Modes 4 to 6 1 CS1 output pin 0 PG3 input pin Mode 7 1 PG3 output pin PG2/CS2 The pin function is switched as shown below according to the operating mode and bit PG2DDR. Operating Mode PG2DDR Pin function 0 PG2 input pin Modes 4 to 6 1 CS2 output pin 0 PG2 input pin Mode 7 1 PG2 output pin 509 Pin PG1/CS3/ IRQ7 Selection Method and Pin Functions The pin function is switched as shown below according to the operating mode and bits OES and PG1DDR in BCRL. Operating Mode PG1DDR Pin function 0 PG1 input pin Modes 4 to 6 1 CS3 output pin 0 PG1 input pin Mode 7 1 PG1 output pin IRQ7 input PG0/IRQ6 The pin function is switched as shown below according to the operating mode and bits RMTS2 to RMTS0 in BCRH. Operating Mode PG0DDR Pin function 0 PG0 input pin Modes 4 to 6 1 PG0 output pin 0 PG0 input pin Mode 7 1 PG0 output pin IRQ6 input 510 Section 11 16-Bit Timer Pulse Unit (TPU) 11.1 Overview The H8S/2633 Series has an on-chip 16-bit timer pulse unit (TPU) that comprises six 16-bit timer channels. 11.1.1 Features * Maximum 16-pulse input/output A total of 16 timer general registers (TGRs) are provided (four each for channels 0 and 3, and two each for channels 1, 2, 4, and 5), each of which can be set independently as an output compare/input capture register TGRC and TGRD for channels 0 and 3 can also be used as buffer registers * Selection of 8 counter input clocks for each channel * The following operations can be set for each channel: Waveform output at compare match: Selection of 0, 1, or toggle output Input capture function: Selection of rising edge, falling edge, or both edge detection Counter clear operation: Counter clearing possible by compare match or input capture Synchronous operation: Multiple timer counters (TCNT) can be written to simultaneously Simultaneous clearing by compare match and input capture possible Register simultaneous input/output possible by counter synchronous operation PWM mode: Any PWM output duty can be set Maximum of 15-phase PWM output possible by combination with synchronous operation * Buffer operation settable for channels 0 and 3 Input capture register double-buffering possible Automatic rewriting of output compare register possible * Phase counting mode settable independently for each of channels 1, 2, 4, and 5 Two-phase encoder pulse up/down-count possible * Cascaded operation Channel 2 (channel 5) input clock operates as 32-bit counter by setting channel 1 (channel 4) overflow/underflow * Fast access via internal 16-bit bus Fast access is possible via a 16-bit bus interface 511 * 26 interrupt sources For channels 0 and 3, four compare match/input capture dual-function interrupts and one overflow interrupt can be requested independently For channels 1, 2, 4, and 5, two compare match/input capture dual-function interrupts, one overflow interrupt, and one underflow interrupt can be requested independently * Automatic transfer of register data Block transfer, 1-word data transfer, and 1-byte data transfer possible by data transfer controller (DTC)* or DMA controller (DMAC)* * Programmable pulse generator (PPG)* output trigger can be generated Channels 0 to 3 compare match/input capture signals can be used as PPG output trigger * A/D converter conversion start trigger can be generated Channels 0 to 5 compare match A/input capture A signals can be used as A/D converter conversion start trigger * Module stop mode can be set As the initial setting, TPU operation is halted. Register access is enabled by exiting module stop mode Table 11-1 lists the functions of the TPU. Note: * This function is not available in the H8S/2695. 512 Table 11-1 TPU Functions Item Count clock Channel 0 Channel 1 Channel 2 Channel 3 Channel 4 Channel 5 o/1 o/4 o/16 o/64 TCLKA TCLKB TCLKC TCLKD TGR0A TGR0B TGR0C TGR0D TIOCA0 TIOCB0 TIOCC0 TIOCD0 TGR compare match or input capture o/1 o/4 o/16 o/64 o/256 TCLKA TCLKB TGR1A TGR1B -- TIOCA1 TIOCB1 o/1 o/4 o/16 o/64 o/1024 TCLKA TCLKB TCLKC TGR2A TGR2B -- TIOCA2 TIOCB2 o/1 o/4 o/16 o/64 o/256 o/1024 o/4096 TCLKA TGR3A TGR3B TGR3C TGR3D TIOCA3 TIOCB3 TIOCC3 TIOCD3 TGR compare match or input capture o/1 o/4 o/16 o/64 o/1024 TCLKA TCLKC TGR4A TGR4B -- TIOCA4 TIOCB4 o/1 o/4 o/16 o/64 o/256 TCLKA TCLKC TCLKD TGR5A TGR5B -- TIOCA5 TIOCB5 General registers General registers/ buffer registers I/O pins Counter clear function TGR compare match or input capture TGR compare match or input capture TGR compare match or input capture TGR compare match or input capture Compare 0 output match 1 output output Toggle output Input capture function Synchronous operation PWM mode Phase counting mode Buffer operation -- -- -- -- -- -- 513 Item Channel 0 Channel 1 TGR1A compare match or input capture TGR compare match or input capture TGR1A compare match or input capture TGR1A/ TGR1B compare match or input capture 4 sources Channel 2 TGR2A compare match or input capture TGR compare match or input capture TGR2A compare match or input capture TGR2A/ TGR2B compare match or input capture 4 sources Channel 3 TGR3A compare match or input capture TGR compare match or input capture TGR3A compare match or input capture Channel 4 TGR4A compare match or input capture TGR compare match or input capture TGR4A compare match or input capture Channel 5 TGR5A compare match or input capture TGR compare match or input capture TGR5A compare match or input capture -- DMAC TGR0A activation* compare match or input capture DTC TGR activation* compare match or input capture A/D converter trigger PPG trigger* TGR0A compare match or input capture TGR0A/ TGR0B compare match or input capture 5 sources * -- TGR3A/ TGR3B compare match or input capture 5 sources 4 sources Compare * match or input capture 3A Compare * match or input capture 3B Compare * match or * input capture 3C Compare match or input capture 3D Overflow Interrupt sources 4 sources Compare match or input capture 5A Compare match or input capture 5B Overflow Underflow Compare * match or input capture 0A Compare * match or input capture 0B Compare * match or * input capture 0C Compare match or input capture 0D Overflow Compare * match or input capture 1A Compare * match or input capture 1B Overflow * Underflow * Compare * match or input capture 2A Compare * match or input capture 2B Overflow Underflow * Compare * match or input capture 4A Compare * match or input capture 4B Overflow * Underflow * * * * * * * Legend : Possible -- : Not possible Note: * This function is not available in the H8S/2695. 514 11.1.2 Block Diagram Figure 11-1 shows a block diagram of the TPU. TIORH TIORL TMDR Channel 3 TSR TGRC TGRD TGRA TGRB TCNT Control logic for channels 3 to 5 Input/output pins Channel 3: TIOCA3 TIOCB3 TIOCC3 TIOCD3 TIOCA4 Channel 4: TIOCB4 TIOCA5 Channel 5: TIOCB5 Channel 5 TGRA TIOR TMDR Channel 2 TSR Clock input Internal clock: o/1 o/4 o/16 o/64 o/256 o/1024 o/4096 External clock: TCLKA TCLKB TCLKC TCLKD TIER TCR Module data bus TSTR TSYR Bus interface TGRB TCNT Interrupt request signals Channel 3: TGI3A TGI3B TGI3C TGI3D TCI3V Channel 4: TGI4A TGI4B TCI4V TCI4U Channel 5: TGI5A TGI5B TCI5V TCI5U TMDR Channel 4 TSR TIER TCR TGRA TIOR TMDR TSR TIER TCR TGRB TCNT Common Control logic Internal data bus A/D converter convertion start signal PPG output trigger signal TGRA TIOR TIER TCR TGRB TCNT Control logic for channels 0 to 2 TIORH TIORL TMDR Input/output pins TIOCA0 Channel 0: TIOCB0 TIOCC0 TIOCD0 TIOCA1 Channel 1: TIOCB1 TIOCA2 Channel 2: TIOCB2 Interrupt request signals Channel 0: TGI0A TGI0B TGI0C TGI0D TCI0V Channel 1: TGI1A TGI1B TCI1V TCI1U Channel 2: TGI2A TGI2B TCI2V TCI2U TMDR Channel 1 TSR TGRA TIOR Channel 0 TSR TIER TCR TGRB TGRC TGRD TGRB TCNT TCNT Legend TSTR: TSYR: TCR: TMDR: Timer start register Timer synchro register Timer control register Timer mode register TIOR (H, L): TIER: TSR: TGR (A, B, C, D): Timer I/O control registers (H, L) Timer interrupt enable register Timer status register Timer general registers (A, B, C, D) Figure 11-1 Block Diagram of TPU 515 TIER TCR TGRA 11.1.3 Pin Configuration Table 11-2 summarizes the TPU pins. Table 11-2 TPU Pins Channel All Name Clock input A Symbol TCLKA I/O Input Function External clock A input pin (Channel 1 and 5 phase counting mode A phase input) External clock B input pin (Channel 1 and 5 phase counting mode B phase input) External clock C input pin (Channel 2 and 4 phase counting mode A phase input) External clock D input pin (Channel 2 and 4 phase counting mode B phase input) TGR0A input capture input/output compare output/PWM output pin TGR0B input capture input/output compare output/PWM output pin TGR0C input capture input/output compare output/PWM output pin TGR0D input capture input/output compare output/PWM output pin TGR1A input capture input/output compare output/PWM output pin TGR1B input capture input/output compare output/PWM output pin TGR2A input capture input/output compare output/PWM output pin TGR2B input capture input/output compare output/PWM output pin Clock input B TCLKB Input Clock input C TCLKC Input Clock input D TCLKD Input 0 Input capture/out TIOCA0 compare match A0 Input capture/out TIOCB0 compare match B0 Input capture/out TIOCC0 compare match C0 Input capture/out TIOCD0 compare match D0 I/O I/O I/O I/O I/O I/O I/O I/O 1 Input capture/out TIOCA1 compare match A1 Input capture/out TIOCB1 compare match B1 2 Input capture/out TIOCA2 compare match A2 Input capture/out TIOCB2 compare match B2 516 Channel 3 Name Symbol I/O I/O I/O I/O I/O I/O I/O I/O I/O Function TGR3A input capture input/output compare output/PWM output pin TGR3B input capture input/output compare output/PWM output pin TGR3C input capture input/output compare output/PWM output pin TGR3D input capture input/output compare output/PWM output pin TGR4A input capture input/output compare output/PWM output pin TGR4B input capture input/output compare output/PWM output pin TGR5A input capture input/output compare output/PWM output pin TGR5B input capture input/output compare output/PWM output pin Input capture/out TIOCA3 compare match A3 Input capture/out TIOCB3 compare match B3 Input capture/out TIOCC3 compare match C3 Input capture/out TIOCD3 compare match D3 4 Input capture/out TIOCA4 compare match A4 Input capture/out TIOCB4 compare match B4 5 Input capture/out TIOCA5 compare match A5 Input capture/out TIOCB5 compare match B5 517 11.1.4 Register Configuration Table 11-3 summarizes the TPU registers. Table 11-3 TPU Registers Channel Name 0 Timer control register 0 Timer mode register 0 Timer I/O control register 0H Timer I/O control register 0L Abbreviation TCR0 TMDR0 TIOR0H TIOR0L R/W R/W R/W R/W R/W R/W R/(W)* R/W R/W R/W R/W R/W R/W R/W R/W R/W 2 2 Initial Value H'00 H'C0 H'00 H'00 H'40 H'C0 H'0000 H'FFFF H'FFFF H'FFFF H'FFFF H'00 H'C0 H'00 H'40 Address * 1 H'FF10 H'FF11 H'FF12 H'FF13 H'FF14 H'FF15 H'FF16 H'FF18 H'FF1A H'FF1C H'FF1E H'FF20 H'FF21 H'FF22 H'FF24 H'FF25 H'FF26 H'FF28 H'FF2A H'FF30 H'FF31 H'FF32 H'FF34 H'FF35 H'FF36 H'FF38 H'FF3A Timer interrupt enable register 0 TIER0 Timer status register 0 Timer counter 0 Timer general register 0A Timer general register 0B Timer general register 0C Timer general register 0D 1 Timer control register 1 Timer mode register 1 Timer I/O control register 1 TSR0 TCNT0 TGR0A TGR0B TGR0C TGR0D TCR1 TMDR1 TIOR1 Timer interrupt enable register 1 TIER1 Timer status register 1 Timer counter 1 Timer general register 1A Timer general register 1B 2 Timer control register 2 Timer mode register 2 Timer I/O control register 2 TSR1 TCNT1 TGR1A TGR1B TCR2 TMDR2 TIOR2 R/(W) * H'C0 R/W R/W R/W R/W R/W R/W R/W 2 H'0000 H'FFFF H'FFFF H'00 H'C0 H'00 H'40 Timer interrupt enable register 2 TIER2 Timer status register 2 Timer counter 2 Timer general register 2A Timer general register 2B TSR2 TCNT2 TGR2A TGR2B R/(W) * H'C0 R/W R/W R/W H'0000 H'FFFF H'FFFF 518 Channel Name 3 Timer control register 3 Timer mode register 3 Timer I/O control register 3H Timer I/O control register 3L Abbreviation TCR3 TMDR3 TIOR3H TIOR3L R/W R/W R/W R/W R/W R/W R/(W)* R/W R/W R/W R/W R/W R/W R/W R/W R/W 2 2 Initial Value H'00 H'C0 H'00 H'00 H'40 H'C0 H'0000 H'FFFF H'FFFF H'FFFF H'FFFF H'00 H'C0 H'00 H'40 Address* 1 H'FE80 H'FE81 H'FE82 H'FE83 H'FE84 H'FE85 H'FE86 H'FE88 H'FE8A H'FE8C H'FE8E H'FE90 H'FE91 H'FE92 H'FE94 H'FE95 H'FE96 H'FE98 H'FE9A H'FEA0 H'FEA1 H'FEA2 H'FEA4 H'FEA5 H'FEA6 H'FEA8 H'FEAA H'FEB0 H'FEB1 H'FDE8 Timer interrupt enable register 3 TIER3 Timer status register 3 Timer counter 3 Timer general register 3A Timer general register 3B Timer general register 3C Timer general register 3D 4 Timer control register 4 Timer mode register 4 Timer I/O control register 4 TSR3 TCNT3 TGR3A TGR3B TGR3C TGR3D TCR4 TMDR4 TIOR4 Timer interrupt enable register 4 TIER4 Timer status register 4 Timer counter 4 Timer general register 4A Timer general register 4B 5 Timer control register 5 Timer mode register 5 Timer I/O control register 5 TSR4 TCNT4 TGR4A TGR4B TCR5 TMDR5 TIOR5 R/(W) * H'C0 R/W R/W R/W R/W R/W R/W R/W 2 H'0000 H'FFFF H'FFFF H'00 H'C0 H'00 H'40 Timer interrupt enable register 5 TIER5 Timer status register 5 Timer counter 5 Timer general register 5A Timer general register 5B All Timer start register Timer synchro register Module stop control register A TSR5 TCNT5 TGR5A TGR5B TSTR TSYR MSTPCRA R/(W) * H'C0 R/W R/W R/W R/W R/W R/W H'0000 H'FFFF H'FFFF H'00 H'00 H'3F Notes: *1 Lower 16 bits of the address. *2 Only 0 can be written, for flag clearing. 519 11.2 11.2.1 Register Descriptions Timer Control Register (TCR) Channel 0: TCR0 Channel 3: TCR3 Bit : 7 CCLR2 Initial value : R/W : 0 R/W 6 CCLR1 0 R/W 5 CCLR0 0 R/W 4 CKEG1 0 R/W 3 CKEG0 0 R/W 2 TPSC2 0 R/W 1 TPSC1 0 R/W 0 TPSC0 0 R/W Channel 1: TCR1 Channel 2: TCR2 Channel 4: TCR4 Channel 5: TCR5 Bit : 7 -- Initial value : R/W : 0 -- 6 CCLR1 0 R/W 5 CCLR0 0 R/W 4 CKEG1 0 R/W 3 CKEG0 0 R/W 2 TPSC2 0 R/W 1 TPSC1 0 R/W 0 TPSC0 0 R/W The TCR registers are 8-bit registers that control the TCNT channels. The TPU has six TCR registers, one for each of channels 0 to 5. The TCR registers are initialized to H'00 by a reset, and in hardware standby mode. TCR register settings should be made only when TCNT operation is stopped. 520 Bits 7, 6, and 5--Counter Clear 2, 1, and 0 (CCLR2, CCLR1, CCLR0): These bits select the TCNT counter clearing source. Bit 7 Channel 0, 3 CCLR2 0 Bit 6 CCLR1 0 Bit 5 CCLR0 0 1 1 0 1 Description TCNT clearing disabled (Initial value) TCNT cleared by TGRA compare match/input capture TCNT cleared by TGRB compare match/input capture TCNT cleared by counter clearing for another channel performing synchronous clearing/ synchronous operation * 1 TCNT clearing disabled TCNT cleared by TGRC compare match/input capture * 2 TCNT cleared by TGRD compare match/input capture * 2 TCNT cleared by counter clearing for another channel performing synchronous clearing/ synchronous operation * 1 1 0 0 1 1 0 1 Bit 7 Channel 1, 2, 4, 5 3 Bit 6 Bit 5 CCLR0 0 1 Description TCNT clearing disabled (Initial value) Reserved* CCLR1 0 0 TCNT cleared by TGRA compare match/input capture TCNT cleared by TGRB compare match/input capture TCNT cleared by counter clearing for another channel performing synchronous clearing/ synchronous operation * 1 1 0 1 Notes: *1 Synchronous operation setting is performed by setting the SYNC bit in TSYR to 1. *2 When TGRC or TGRD is used as a buffer register, TCNT is not cleared because the buffer register setting has priority, and compare match/input capture does not occur. *3 Bit 7 is reserved in channels 1, 2, 4, and 5. It is always read as 0 and cannot be modified. 521 Bits 4 and 3--Clock Edge 1 and 0 (CKEG1, CKEG0): These bits select the input clock edge. When the input clock is counted using both edges, the input clock period is halved (e.g. o/4 both edges = o/2 rising edge). If phase counting mode is used on channels 1, 2, 4, and 5, this setting is ignored and the phase counting mode setting has priority. Bit 4 CKEG1 0 Bit 3 CKEG0 0 1 1 -- Description Count at rising edge Count at falling edge Count at both edges (Initial value) Note: Internal clock edge selection is valid when the input clock is o/4 or slower. This setting is ignored if the input clock is o/1, or when overflow/underflow of another channel is selected. Bits 2, 1, and 0--Time Prescaler 2, 1, and 0 (TPSC2 to TPSC0): These bits select the TCNT counter clock. The clock source can be selected independently for each channel. Table 11-4 shows the clock sources that can be set for each channel. Table 11-4 TPU Clock Sources Overflow/ Underflow on Another Internal Clock Channel 0 1 2 3 4 5 o/1 o/4 o/16 o/64 o/256 o/1024 o/4096 External Clock TCLKA TCLKB TCLKC TCLKD Channel Legend : Setting Blank : No setting 522 Bit 2 Channel 0 TPSC2 0 Bit 1 TPSC1 0 Bit 0 TPSC0 0 1 Description Internal clock: counts on o/1 Internal clock: counts on o/4 Internal clock: counts on o/16 Internal clock: counts on o/64 External clock: counts on TCLKA pin input External clock: counts on TCLKB pin input External clock: counts on TCLKC pin input External clock: counts on TCLKD pin input (Initial value) 1 0 1 1 0 0 1 1 0 1 Bit 2 Channel 1 TPSC2 0 Bit 1 TPSC1 0 Bit 0 TPSC0 0 1 Description Internal clock: counts on o/1 Internal clock: counts on o/4 Internal clock: counts on o/16 Internal clock: counts on o/64 External clock: counts on TCLKA pin input External clock: counts on TCLKB pin input Internal clock: counts on o/256 Counts on TCNT2 overflow/underflow (Initial value) 1 0 1 1 0 0 1 1 0 1 Note: This setting is ignored when channel 1 is in phase counting mode. Bit 2 Channel 2 TPSC2 0 Bit 1 TPSC1 0 Bit 0 TPSC0 0 1 1 0 1 1 0 0 1 1 0 1 Description Internal clock: counts on o/1 Internal clock: counts on o/4 Internal clock: counts on o/16 Internal clock: counts on o/64 External clock: counts on TCLKA pin input External clock: counts on TCLKB pin input External clock: counts on TCLKC pin input Internal clock: counts on o/1024 (Initial value) Note: This setting is ignored when channel 2 is in phase counting mode. 523 Bit 2 Channel 3 TPSC2 0 Bit 1 TPSC1 0 Bit 0 TPSC0 0 1 Description Internal clock: counts on o/1 Internal clock: counts on o/4 Internal clock: counts on o/16 Internal clock: counts on o/64 External clock: counts on TCLKA pin input Internal clock: counts on o/1024 Internal clock: counts on o/256 Internal clock: counts on o/4096 (Initial value) 1 0 1 1 0 0 1 1 0 1 Bit 2 Channel 4 TPSC2 0 Bit 1 TPSC1 0 Bit 0 TPSC0 0 1 Description Internal clock: counts on o/1 Internal clock: counts on o/4 Internal clock: counts on o/16 Internal clock: counts on o/64 External clock: counts on TCLKA pin input External clock: counts on TCLKC pin input Internal clock: counts on o/1024 Counts on TCNT5 overflow/underflow (Initial value) 1 0 1 1 0 0 1 1 0 1 Note: This setting is ignored when channel 4 is in phase counting mode. Bit 2 Channel 5 TPSC2 0 Bit 1 TPSC1 0 Bit 0 TPSC0 0 1 1 0 1 1 0 0 1 1 0 1 Description Internal clock: counts on o/1 Internal clock: counts on o/4 Internal clock: counts on o/16 Internal clock: counts on o/64 External clock: counts on TCLKA pin input External clock: counts on TCLKC pin input Internal clock: counts on o/256 External clock: counts on TCLKD pin input (Initial value) Note: This setting is ignored when channel 5 is in phase counting mode. 524 11.2.2 Timer Mode Register (TMDR) Channel 0: TMDR0 Channel 3: TMDR3 Bit : 7 -- Initial value : R/W : 1 -- 6 -- 1 -- 5 BFB 0 R/W 4 BFA 0 R/W 3 MD3 0 R/W 2 MD2 0 R/W 1 MD1 0 R/W 0 MD0 0 R/W Channel 1: TMDR1 Channel 2: TMDR2 Channel 4: TMDR4 Channel 5: TMDR5 Bit : 7 -- Initial value : R/W : 1 -- 6 -- 1 -- 5 -- 0 -- 4 -- 0 -- 3 MD3 0 R/W 2 MD2 0 R/W 1 MD1 0 R/W 0 MD0 0 R/W The TMDR registers are 8-bit readable/writable registers that are used to set the operating mode for each channel. The TPU has six TMDR registers, one for each channel. The TMDR registers are initialized to H'C0 by a reset, and in hardware standby mode. TMDR register settings should be made only when TCNT operation is stopped. Bits 7 and 6--Reserved: These bits are always read as 1 and cannot be modified. Bit 5--Buffer Operation B (BFB): Specifies whether TGRB is to operate in the normal way, or TGRB and TGRD are to be used together for buffer operation. When TGRD is used as a buffer register, TGRD input capture/output compare is not generated. In channels 1, 2, 4, and 5, which have no TGRD, bit 5 is reserved. It is always read as 0 and cannot be modified. Bit 5 BFB 0 1 Description TGRB operates normally TGRB and TGRD used together for buffer operation (Initial value) 525 Bit 4--Buffer Operation A (BFA): Specifies whether TGRA is to operate in the normal way, or TGRA and TGRC are to be used together for buffer operation. When TGRC is used as a buffer register, TGRC input capture/output compare is not generated. In channels 1, 2, 4, and 5, which have no TGRC, bit 4 is reserved. It is always read as 0 and cannot be modified. Bit 4 BFA 0 1 Description TGRA operates normally TGRA and TGRC used together for buffer operation (Initial value) Bits 3 to 0--Modes 3 to 0 (MD3 to MD0): These bits are used to set the timer operating mode. Bit 3 MD3* 0 1 Bit 2 MD2* 0 2 Bit 1 MD1 0 Bit 0 MD0 0 1 Description Normal operation Reserved PWM mode 1 PWM mode 2 Phase counting mode 1 Phase counting mode 2 Phase counting mode 3 Phase counting mode 4 -- (Initial value) 1 0 1 1 0 0 1 1 0 1 1 * * * *: Don't care Notes: *1 MD3 is a reserved bit. In a write, it should always be written with 0. *2 Phase counting mode cannot be set for channels 0 and 3. In this case, 0 should always be written to MD2. 526 11.2.3 Timer I/O Control Register (TIOR) Channel 0: TIOR0H Channel 1: TIOR1 Channel 2: TIOR2 Channel 3: TIOR3H Channel 4: TIOR4 Channel 5: TIOR5 Bit : 7 IOB3 Initial value : R/W : 0 R/W 6 IOB2 0 R/W 5 IOB1 0 R/W 4 IOB0 0 R/W 3 IOA3 0 R/W 2 IOA2 0 R/W 1 IOA1 0 R/W 0 IOA0 0 R/W Channel 0: TIOR0L Channel 3: TIOR3L Bit : 7 IOD3 Initial value : R/W : 0 R/W 6 IOD2 0 R/W 5 IOD1 0 R/W 4 IOD0 0 R/W 3 IOC3 0 R/W 2 IOC2 0 R/W 1 IOC1 0 R/W 0 IOC0 0 R/W Note: When TGRC or TGRD is designated for buffer operation, this setting is invalid and the register operates as a buffer register. The TIOR registers are 8-bit registers that control the TGR registers. The TPU has eight TIOR registers, two each for channels 0 and 3, and one each for channels 1, 2, 4, and 5. The TIOR registers are initialized to H'00 by a reset, and in hardware standby mode. Care is required since TIOR is affected by the TMDR setting. The initial output specified by TIOR is valid when the counter is stopped (the CST bit in TSTR is cleared to 0). Note also that, in PWM mode 2, the output at the point at which the counter is cleared to 0 is specified. 527 Bits 7 to 4-- I/O Control B3 to B0 (IOB3 to IOB0) I/O Control D3 to D0 (IOD3 to IOD0): Bits IOB3 to IOB0 specify the function of TGRB. Bits IOD3 to IOD0 specify the function of TGRD. Bit 7 Bit 6 Bit 5 Bit 4 Channel 0 IOB3 IOB2 IOB1 IOB0 Description 0 0 0 0 1 1 0 1 1 0 0 1 1 0 1 1 0 0 0 1 1 1 * * * TGR0B is Capture input source is input TIOCB0 pin capture register Output disabled Initial output is 1 output 0 output at compare match 1 output at compare match Toggle output at compare match Input capture at rising edge Input capture at falling edge Input capture at both edges TGR0B is Output disabled output Initial output is 0 compare output register (Initial value) 0 output at compare match 1 output at compare match Toggle output at compare match Capture input Input capture at TCNT1 source is channel count- up/count-down* 1 1/count clock Note: *: Don't care *1 When bits TPSC2 to TPSC0 in TCR1 are set to B'000 and o/1 is used as the TCNT1 count clock, this setting is invalid and input capture is not generated. 528 Bit 7 Bit 6 Bit 5 Bit 4 Channel 0 IOD3 IOD2 IOD1 IOD0 Description 0 0 0 0 1 1 0 1 1 0 1 0 1 0 1 1 0 0 0 1 1 1 * * * TGR0D is Capture input source is input TIOCD0 pin capture register* 2 Output disabled Initial output is 1 output 0 output at compare match 1 output at compare match Toggle output at compare match Input capture at rising edge Input capture at falling edge Input capture at both edges TGR0D is Output disabled output Initial output is 0 compare output 2 register* (Initial value) 0 output at compare match 1 output at compare match Toggle output at compare match Capture input Input capture at TCNT1 source is channel count-up/count-down* 1 1/count clock *: Don't care Notes: *1 When bits TPSC2 to TPSC0 in TCR1 are set to B'000 and o/1 is used as the TCNT1 count clock, this setting is invalid and input capture is not generated. *2 When the BFB bit in TMDR0 is set to 1 and TGR0D is used as a buffer register, this setting is invalid and input capture/output compare is not generated. 529 Bit 7 Bit 6 Bit 5 Bit 4 Channel 1 IOB3 IOB2 IOB1 IOB0 Description 0 0 0 0 1 1 0 1 1 0 1 0 1 0 1 1 0 0 0 1 1 1 * * * TGR1B is Capture input source is input TIOCB1 pin capture register Output disabled Initial output is 1 output 0 output at compare match 1 output at compare match Toggle output at compare match Input capture at rising edge Input capture at falling edge Input capture at both edges TGR1B is Output disabled output Initial output is 0 compare output register (Initial value) 0 output at compare match 1 output at compare match Toggle output at compare match Input capture at generation of Capture input source is TGR0C TGR0C compare match/input compare match/ capture input capture *: Don't care Bit 7 Bit 6 Bit 5 Bit 4 Channel 2 IOB3 IOB2 IOB1 IOB0 Description 0 0 0 0 1 1 0 1 1 0 0 1 1 0 1 1 * 0 0 1 1 * TGR2B is Capture input source is input TIOCB2 pin capture register Output disabled Initial output is 1 output 0 output at compare match 1 output at compare match Toggle output at compare match Input capture at rising edge Input capture at falling edge Input capture at both edges *: Don't care TGR2B is Output disabled output Initial output is 0 compare output register (Initial value) 0 output at compare match 1 output at compare match Toggle output at compare match 530 Bit 7 Bit 6 Bit 5 Bit 4 Channel 3 IOB3 IOB2 IOB1 IOB0 Description 0 0 0 0 1 1 0 1 1 0 0 1 1 0 1 1 0 0 0 1 1 1 * * * TGR3B is Capture input source is input TIOCB3 pin capture register Output disabled Initial output is 1 output 0 output at compare match 1 output at compare match Toggle output at compare match Input capture at rising edge Input capture at falling edge Input capture at both edges TGR3B is Output disabled output Initial output is 0 compare output register (Initial value) 0 output at compare match 1 output at compare match Toggle output at compare match Capture input Input capture at TCNT4 source is channel count-up/count-down* 1 4/count clock Note: *: Don't care *1 When bits TPSC2 to TPSC0 in TCR4 are set to B'000 and o/1 is used as the TCNT4 count clock, this setting is invalid and input capture is not generated. 531 Bit 7 Bit 6 Bit 5 Bit 4 Channel 3 IOD3 IOD2 IOD1 IOD0 Description 0 0 0 0 1 1 0 1 1 0 1 0 1 0 1 1 0 0 0 1 1 1 * * * TGR3D is Capture input source is input TIOCD3 pin capture register* 2 Output disabled Initial output is 1 output 0 output at compare match 1 output at compare match Toggle output at compare match Input capture at rising edge Input capture at falling edge Input capture at both edges TGR3D is Output disabled output Initial output is 0 compare output 2 register* (Initial value) 0 output at compare match 1 output at compare match Toggle output at compare match Capture input Input capture at TCNT4 source is channel count-up/count-down* 1 4/count clock *: Don't care Notes: *1 When bits TPSC2 to TPSC0 in TCR4 are set to B'000 and o/1 is used as the TCNT4 count clock, this setting is invalid and input capture is not generated. *2 When the BFB bit in TMDR3 is set to 1 and TGR3D is used as a buffer register, this setting is invalid and input capture/output compare is not generated. 532 Bit 7 Bit 6 Bit 5 Bit 4 Channel 4 IOB3 IOB2 IOB1 IOB0 Description 0 0 0 0 1 1 0 1 1 0 1 0 1 0 1 1 0 0 0 1 1 1 * * * TGR4B is Capture input source is input TIOCB4 pin capture register Output disabled Initial output is 1 output 0 output at compare match 1 output at compare match Toggle output at compare match Input capture at rising edge Input capture at falling edge Input capture at both edges TGR4B is Output disabled output Initial output is 0 compare output register (Initial value) 0 output at compare match 1 output at compare match Toggle output at compare match Input capture at generation of Capture input source is TGR3C TGR3C compare match/ compare match/ input capture input capture *: Don't care Bit 7 Bit 6 Bit 5 Bit 4 Channel 5 IOB3 IOB2 IOB1 IOB0 Description 0 0 0 0 1 1 0 1 1 0 0 1 1 0 1 1 * 0 0 1 1 * TGR5B is Capture input source is input TIOCB5 pin capture register Output disabled Initial output is 1 output 0 output at compare match 1 output at compare match Toggle output at compare match Input capture at rising edge Input capture at falling edge Input capture at both edges *: Don't care TGR5B is Output disabled output Initial output is 0 compare output register (Initial value) 0 output at compare match 1 output at compare match Toggle output at compare match 533 Bits 3 to 0-- I/O Control A3 to A0 (IOA3 to IOA0) I/O Control C3 to C0 (IOC3 to IOC0): IOA3 to IOA0 specify the function of TGRA. IOC3 to IOC0 specify the function of TGRC. Bit 3 Bit 2 Bit 1 Bit 0 Channel 0 IOA3 IOA2 IOA1 IOA0 Description 0 0 0 0 1 1 0 1 1 0 0 1 1 0 1 1 0 0 0 1 1 1 * * * TGR0A is Capture input source is input TIOCA0 pin capture register Output disabled Initial output is 1 output 0 output at compare match 1 output at compare match Toggle output at compare match Input capture at rising edge Input capture at falling edge Input capture at both edges TGR0A is Output disabled output Initial output is 0 compare output register (Initial value) 0 output at compare match 1 output at compare match Toggle output at compare match Capture input Input capture at TCNT1 source is channel count-up/count-down 1/ count clock *: Don't care 534 Bit 3 Bit 2 Bit 1 Bit 0 Channel 0 IOC3 IOC2 IOC1 IOC0 Description 0 0 0 0 1 1 0 1 1 0 0 1 1 0 1 1 0 0 0 1 1 1 * * * TGR0C is Capture input source is input TIOCC0 pin capture register* 1 Output disabled Initial output is 1 output 0 output at compare match 1 output at compare match Toggle output at compare match Input capture at rising edge Input capture at falling edge Input capture at both edges TGR0C is Output disabled output Initial output is 0 compare output register* 1 (Initial value) 0 output at compare match 1 output at compare match Toggle output at compare match Capture input Input capture at TCNT1 source is channel count-up/count-down 1/count clock Note: *: Don't care *1 When the BFA bit in TMDR0 is set to 1 and TGR0C is used as a buffer register, this setting is invalid and input capture/output compare is not generated. 535 Bit 3 Bit 2 Bit 1 Bit 0 Channel 1 IOA3 IOA2 IOA1 IOA0 Description 0 0 0 0 1 1 0 1 1 0 0 1 1 0 1 1 0 0 0 1 1 1 * * * TGR1A is Capture input source is input TIOCA1 pin capture register Output disabled Initial output is 1 output 0 output at compare match 1 output at compare match Toggle output at compare match Input capture at rising edge Input capture at falling edge Input capture at both edges TGR1A is Output disabled output Initial output is 0 compare output register (Initial value) 0 output at compare match 1 output at compare match Toggle output at compare match Input capture at generation of Capture input source is TGR0A channel 0/TGR0A compare compare match/ match/input capture input capture *: Don't care Bit 3 Bit 2 Bit 1 Bit 0 Channel 2 IOA3 IOA2 IOA1 IOA0 Description 0 0 0 0 1 1 0 1 1 0 0 1 1 0 1 1 * 0 0 1 1 * TGR2A is Capture input source is input TIOCA2 pin capture register Output disabled Initial output is 1 output 0 output at compare match 1 output at compare match Toggle output at compare match Input capture at rising edge Input capture at falling edge Input capture at both edges *: Don't care TGR2A is Output disabled output Initial output is 0 compare output register (Initial value) 0 output at compare match 1 output at compare match Toggle output at compare match 536 Bit 3 Bit 2 Bit 1 Bit 0 Channel 3 IOA3 IOA2 IOA1 IOA0 Description 0 0 0 0 1 1 0 1 1 0 0 1 1 0 1 1 0 0 0 1 1 1 * * * TGR3A is Capture input source is input TIOCA3 pin capture register Output disabled Initial output is 1 output 0 output at compare match 1 output at compare match Toggle output at compare match Input capture at rising edge Input capture at falling edge Input capture at both edges TGR3A is Output disabled output Initial output is 0 compare output register (Initial value) 0 output at compare match 1 output at compare match Toggle output at compare match Capture input Input capture at TCNT4 source is channel count-up/count-down 4/count clock *: Don't care 537 Bit 3 Bit 2 Bit 1 Bit 0 Channel 3 IOC3 IOC2 IOC1 IOC0 Description 0 0 0 0 1 1 0 1 1 0 0 1 1 0 1 1 0 0 0 1 1 1 * * * TGR3C is Capture input source is input TIOCC3 pin capture register* 1 Output disabled Initial output is 1 output 0 output at compare match 1 output at compare match Toggle output at compare match Input capture at rising edge Input capture at falling edge Input capture at both edges TGR3C is Output disabled output Initial output is 0 compare output register* 1 (Initial value) 0 output at compare match 1 output at compare match Toggle output at compare match Capture input Input capture at TCNT4 source is channel count-up/count-down 4/count clock Note: *: Don't care *1 When the BFA bit in TMDR3 is set to 1 and TGR3C is used as a buffer register, this setting is invalid and input capture/output compare is not generated. 538 Bit 3 Bit 2 Bit 1 Bit 0 Channel 4 IOA3 IOA2 IOA1 IOA0 Description 0 0 0 0 1 1 0 1 1 0 1 0 1 0 1 1 0 0 0 1 1 1 * * * TGR4A is Capture input source is input TIOCA4 pin capture register Output disabled Initial output is 1 output 0 output at compare match 1 output at compare match Toggle output at compare match Input capture at rising edge Input capture at falling edge Input capture at both edges TGR4A is Output disabled output Initial output is 0 compare output register (Initial value) 0 output at compare match 1 output at compare match Toggle output at compare match Input capture at generation of Capture input source is TGR3A TGR3A compare match/input compare match/ capture input capture *: Don't care Bit 3 Bit 2 Bit 1 Bit 0 Channel 5 IOA3 IOA2 IOA1 IOA0 Description 0 0 0 0 1 1 0 1 1 0 0 1 1 0 1 1 * 0 0 1 1 * TGR5A is Capture input source is input TIOCA5 pin capture register Output disabled Initial output is 1 output 0 output at compare match 1 output at compare match Toggle output at compare match Input capture at rising edge Input capture at falling edge Input capture at both edges *: Don't care TGR5A is Output disabled output Initial output is 0 compare output register (Initial value) 0 output at compare match 1 output at compare match Toggle output at compare match 539 11.2.4 Timer Interrupt Enable Register (TIER) Channel 0: TIER0 Channel 3: TIER3 Bit : 7 TTGE Initial value : R/W : 0 R/W 6 -- 1 -- 5 -- 0 -- 4 TCIEV 0 R/W 3 TGIED 0 R/W 2 TGIEC 0 R/W 1 TGIEB 0 R/W 0 TGIEA 0 R/W Channel 1: TIER1 Channel 2: TIER2 Channel 4: TIER4 Channel 5: TIER5 Bit : 7 TTGE Initial value : R/W : 0 R/W 6 -- 1 -- 5 TCIEU 0 R/W 4 TCIEV 0 R/W 3 -- 0 -- 2 -- 0 -- 1 TGIEB 0 R/W 0 TGIEA 0 R/W The TIER registers are 8-bit registers that control enabling or disabling of interrupt requests for each channel. The TPU has six TIER registers, one for each channel. The TIER registers are initialized to H'40 by a reset, and in hardware standby mode. 540 Bit 7--A/D Conversion Start Request Enable (TTGE): Enables or disables generation of A/D conversion start requests by TGRA input capture/compare match. Bit 7 TTGE 0 1 Description A/D conversion start request generation disabled A/D conversion start request generation enabled (Initial value) Bit 6--Reserved: This bit is always read as 1 and cannot be modified. Bit 5--Underflow Interrupt Enable (TCIEU): Enables or disables interrupt requests (TCIU) by the TCFU flag when the TCFU flag in TSR is set to 1 in channels 1, 2, 4, and 5. In channels 0 and 3, bit 5 is reserved. It is always read as 0 and cannot be modified. Bit 5 TCIEU 0 1 Description Interrupt requests (TCIU) by TCFU disabled Interrupt requests (TCIU) by TCFU enabled (Initial value) Bit 4--Overflow Interrupt Enable (TCIEV): Enables or disables interrupt requests (TCIV) by the TCFV flag when the TCFV flag in TSR is set to 1. Bit 4 TCIEV 0 1 Description Interrupt requests (TCIV) by TCFV disabled Interrupt requests (TCIV) by TCFV enabled (Initial value) Bit 3--TGR Interrupt Enable D (TGIED): Enables or disables interrupt requests (TGID) by the TGFD bit when the TGFD bit in TSR is set to 1 in channels 0 and 3. In channels 1, 2, 4, and 5, bit 3 is reserved. It is always read as 0 and cannot be modified. Bit 3 TGIED 0 1 Description Interrupt requests (TGID) by TGFD bit disabled Interrupt requests (TGID) by TGFD bit enabled (Initial value) 541 Bit 2--TGR Interrupt Enable C (TGIEC): Enables or disables interrupt requests (TGIC) by the TGFC bit when the TGFC bit in TSR is set to 1 in channels 0 and 3. In channels 1, 2, 4, and 5, bit 2 is reserved. It is always read as 0 and cannot be modified. Bit 2 TGIEC 0 1 Description Interrupt requests (TGIC) by TGFC bit disabled Interrupt requests (TGIC) by TGFC bit enabled (Initial value) Bit 1--TGR Interrupt Enable B (TGIEB): Enables or disables interrupt requests (TGIB) by the TGFB bit when the TGFB bit in TSR is set to 1. Bit 1 TGIEB 0 1 Description Interrupt requests (TGIB) by TGFB bit disabled Interrupt requests (TGIB) by TGFB bit enabled (Initial value) Bit 0--TGR Interrupt Enable A (TGIEA): Enables or disables interrupt requests (TGIA) by the TGFA bit when the TGFA bit in TSR is set to 1. Bit 0 TGIEA 0 1 Description Interrupt requests (TGIA) by TGFA bit disabled Interrupt requests (TGIA) by TGFA bit enabled (Initial value) 542 11.2.5 Timer Status Register (TSR) Channel 0: TSR0 Channel 3: TSR3 Bit : 7 -- Initial value : R/W : 1 -- 6 -- 1 -- 5 -- 0 -- 4 TCFV 0 R/(W)* 3 TGFD 0 R/(W)* 2 TGFC 0 R/(W)* 1 TGFB 0 R/(W)* 0 TGFA 0 R/(W)* Note: * Only 0 can be written, for flag clearing. Channel 1: TSR1 Channel 2: TSR2 Channel 4: TSR4 Channel 5: TSR5 Bit : 7 TCFD Initial value : R/W : 1 R 6 -- 1 -- 5 TCFU 0 R/(W)* 4 TCFV 0 R/(W)* 3 -- 0 -- 2 -- 0 -- 1 TGFB 0 R/(W)* 0 TGFA 0 R/(W)* Note: * Only 0 can be written, for flag clearing. The TSR registers are 8-bit registers that indicate the status of each channel. The TPU has six TSR registers, one for each channel. The TSR registers are initialized to H'C0 by a reset, and in hardware standby mode. 543 Bit 7--Count Direction Flag (TCFD): Status flag that shows the direction in which TCNT counts in channels 1, 2, 4, and 5. In channels 0 and 3, bit 7 is reserved. It is always read as 1 and cannot be modified. Bit 7 TCFD 0 1 Description TCNT counts down TCNT counts up (Initial value) Bit 6--Reserved: This bit is always read as 1 and cannot be modified. Bit 5--Underflow Flag (TCFU): Status flag that indicates that TCNT underflow has occurred when channels 1, 2, 4, and 5 are set to phase counting mode. In channels 0 and 3, bit 5 is reserved. It is always read as 0 and cannot be modified. Bit 5 TCFU 0 1 Description [Clearing condition] When 0 is written to TCFU after reading TCFU = 1 [Setting condition] When the TCNT value underflows (changes from H'0000 to H'FFFF) (Initial value) Bit 4--Overflow Flag (TCFV): Status flag that indicates that TCNT overflow has occurred. Bit 4 TCFV 0 Description [Clearing condition] When 0 is written to TCFV after reading TCFV = 1 1 [Setting condition] When the TCNT value overflows (changes from H'FFFF to H'0000 ) (Initial value) 544 Bit 3--Input Capture/Output Compare Flag D (TGFD): Status flag that indicates the occurrence of TGRD input capture or compare match in channels 0 and 3. In channels 1, 2, 4, and 5, bit 3 is reserved. It is always read as 0 and cannot be modified. Bit 3 TGFD 0 Description [Clearing conditions] * * 1 * * (Initial value) When DTC* is activated by TGID interrupt while DISEL bit of MRB in DTC * is 0 When 0 is written to TGFD after reading TGFD = 1 [Setting conditions] When TCNT = TGRD while TGRD is functioning as output compare register When TCNT value is transferred to TGRD by input capture signal while TGRD is functioning as input capture register Note: * This function is not available in the H8S/2695. Bit 2--Input Capture/Output Compare Flag C (TGFC): Status flag that indicates the occurrence of TGRC input capture or compare match in channels 0 and 3. In channels 1, 2, 4, and 5, bit 2 is reserved. It is always read as 0 and cannot be modified. Bit 2 TGFC 0 Description [Clearing conditions] * * 1 * * (Initial value) When DTC* is activated by TGIC interrupt while DISEL bit of MRB in DTC * is 0 When 0 is written to TGFC after reading TGFC = 1 [Setting conditions] When TCNT = TGRC while TGRC is functioning as output compare register When TCNT value is transferred to TGRC by input capture signal while TGRC is functioning as input capture register Note: * This function is not available in the H8S/2695. 545 Bit 1--Input Capture/Output Compare Flag B (TGFB): Status flag that indicates the occurrence of TGRB input capture or compare match. Bit 1 TGFB 0 Description [Clearing conditions] * * 1 * * (Initial value) When DTC* is activated by TGIB interrupt while DISEL bit of MRB in DTC* is 0 When 0 is written to TGFB after reading TGFB = 1 [Setting conditions] When TCNT = TGRB while TGRB is functioning as output compare register When TCNT value is transferred to TGRB by input capture signal while TGRB is functioning as input capture register Note: * This function is not available in the H8S/2695. Bit 0--Input Capture/Output Compare Flag A (TGFA): Status flag that indicates the occurrence of TGRA input capture or compare match. Bit 0 TGFA 0 Description [Clearing conditions] * * * 1 * * (Initial value) When DTC* is activated by TGIA interrupt while DISEL bit of MRB in DTC* is 0 When DMAC* is activated by TGIA interrupt while DTA bit of DMABCR in DMAC* is 1 When 0 is written to TGFA after reading TGFA = 1 [Setting conditions] When TCNT = TGRA while TGRA is functioning as output compare register When TCNT value is transferred to TGRA by input capture signal while TGRA is functioning as input capture register Note: * This function is not available in the H8S/2695. 546 11.2.6 Timer Counter (TCNT) Channel 0: TCNT0 (up-counter) Channel 1: TCNT1 (up/down-counter*) Channel 2: TCNT2 (up/down-counter*) Channel 3: TCNT3 (up-counter) Channel 4: TCNT4 (up/down-counter*) Channel 5: TCNT5 (up/down-counter*) Bit : 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Initial value : R/W 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 : R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W Note: * These counters can be used as up/down-counters only in phase counting mode or when counting overflow/underflow on another channel. In other cases they function as upcounters. The TCNT registers are 16-bit counters. The TPU has six TCNT counters, one for each channel. The TCNT counters are initialized to H'0000 by a reset, and in hardware standby mode. The TCNT counters cannot be accessed in 8-bit units; they must always be accessed as a 16-bit unit. 547 11.2.7 Bit Timer General Register (TGR) : 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Initial value : R/W 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 : R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W The TGR registers are 16-bit registers with a dual function as output compare and input capture registers. The TPU has 16 TGR registers, four each for channels 0 and 3 and two each for channels 1, 2, 4, and 5. TGRC and TGRD for channels 0 and 3 can also be designated for operation as buffer registers*. The TGR registers are initialized to H'FFFF by a reset, and in hardware standby mode. The TGR registers cannot be accessed in 8-bit units; they must always be accessed as a 16-bit unit. Note: * TGR buffer register combinations are TGRA--TGRC and TGRB--TGRD. 548 11.2.8 Bit Timer Start Register (TSTR) : 7 -- 6 -- 0 -- 5 CST5 0 R/W 4 CST4 0 R/W 3 CST3 0 R/W 2 CST2 0 R/W 1 CST1 0 R/W 0 CST0 0 R/W Initial value : R/W : 0 -- TSTR is an 8-bit readable/writable register that selects operation/stoppage for channels 0 to 5. TSTR is initialized to H'00 by a reset, and in hardware standby mode. When setting the operating mode in TMDR or setting the count clock in TCR, first stop the TCNT counter. Bits 7 and 6--Reserved: Should always be written with 0. Bits 5 to 0--Counter Start 5 to 0 (CST5 to CST0): These bits select operation or stoppage for TCNT. Bit n CSTn 0 1 Description TCNTn count operation is stopped TCNTn performs count operation (Initial value) n = 5 to 0 Note: If 0 is written to the CST bit during operation with the TIOC pin designated for output, the counter stops but the TIOC pin output compare output level is retained. If TIOR is written to when the CST bit is cleared to 0, the pin output level will be changed to the set initial output value. 549 11.2.9 Bit Timer Synchro Register (TSYR) : 7 -- 6 -- 0 -- 5 SYNC5 0 R/W 4 SYNC4 0 R/W 3 SYNC3 0 R/W 2 SYNC2 0 R/W 1 SYNC1 0 R/W 0 SYNC0 0 R/W Initial value : R/W : 0 -- TSYR is an 8-bit readable/writable register that selects independent operation or synchronous operation for the channels 0 to 5 TCNT counters. A channel performs synchronous operation when the corresponding bit in TSYR is set to 1. TSYR is initialized to H'00 by a reset, and in hardware standby mode. Bits 7 and 6--Reserved: Should always be written with 0. Bits 5 to 0--Timer Synchro 5 to 0 (SYNC5 to SYNC0): These bits select whether operation is independent of or synchronized with other channels. When synchronous operation is selected, synchronous presetting of multiple channels*1, and synchronous clearing through counter clearing on another channel* 2 are possible. Bit n SYNCn 0 1 Description TCNTn operates independently (TCNT presetting/clearing is unrelated to other channels) (Initial value) TCNTn performs synchronous operation TCNT synchronous presetting/synchronous clearing is possible n = 5 to 0 Notes: *1 To set synchronous operation, the SYNC bits for at least two channels must be set to 1. *2 To set synchronous clearing, in addition to the SYNC bit , the TCNT clearing source must also be set by means of bits CCLR2 to CCLR0 in TCR. 550 11.2.10 Bit Module Stop Control Register A (MSTPCRA) : 7 6 5 4 3 2 1 0 MSTPA7 MSTPA6 MSTPA5 MSTPA4 MSTPA3 MSTPA2 MSTPA1 MSTPA0 Initial value : R/W : 0 R/W 0 R/W 1 R/W 1 R/W 1 R/W 1 R/W 1 R/W 1 R/W MSTPCRA is an 8-bit readable/writable register that performs module stop mode control. When the MSTPA5 bit in MSTPCRA is set to 1, TPU operation stops at the end of the bus cycle and a transition is made to module stop mode. Registers cannot be read or written to in module stop mode. For details, see section 24.5, Module Stop Mode. MSTPCRA is initialized to H'3F by a power-on reset and in hardware standby mode. It is not initialized by a manual reset and in software standby mode. Bit 5--Module Stop (MSTPA5): Specifies the TPU module stop mode. Bit 5 MSTPA5 0 1 Description TPU module stop mode cleared TPU module stop mode set (Initial value) 551 11.3 11.3.1 Interface to Bus Master 16-Bit Registers TCNT and TGR are 16-bit registers. As the data bus to the bus master is 16 bits wide, these registers can be read and written to in 16-bit units. These registers cannot be read or written to in 8-bit units; 16-bit access must always be used. An example of 16-bit register access operation is shown in figure 11-2. Internal data bus H Bus master Module data bus L Bus interface TCNTH TCNTL Figure 11-2 16-Bit Register Access Operation [Bus Master TCNT (16 Bits)] 11.3.2 8-Bit Registers Registers other than TCNT and TGR are 8-bit. As the data bus to the CPU is 16 bits wide, these registers can be read and written to in 16-bit units. They can also be read and written to in 8-bit units. 552 Examples of 8-bit register access operation are shown in figures 11-3, 11-4, and 11-5. Internal data bus H Bus master Module data bus L Bus interface TCR Figure 11-3 8-Bit Register Access Operation [Bus Master TCR (Upper 8 Bits)] Internal data bus H Bus master Module data bus L Bus interface TMDR Figure 11-4 8-Bit Register Access Operation [Bus Master TMDR (Lower 8 Bits)] Internal data bus H Bus master Module data bus L Bus interface TCR TMDR Figure 11-5 8-Bit Register Access Operation [Bus Master TCR and TMDR (16 Bits)] 553 11.4 11.4.1 Operation Overview Operation in each mode is outlined below. Normal Operation: Each channel has a TCNT and TGR register. TCNT performs up-counting, and is also capable of free-running operation, synchronous counting, and external event counting. Each TGR can be used as an input capture register or output compare register. Synchronous Operation: When synchronous operation is designated for a channel, TCNT for that channel performs synchronous presetting. That is, when TCNT for a channel designated for synchronous operation is rewritten, the TCNT counters for the other channels are also rewritten at the same time. Synchronous clearing of the TCNT counters is also possible by setting the timer synchronization bits in TSYR for channels designated for synchronous operation. Buffer Operation * When TGR is an output compare register When a compare match occurs, the value in the buffer register for the relevant channel is transferred to TGR. * When TGR is an input capture register When input capture occurs, the value in TCNT is transfer to TGR and the value previously held in TGR is transferred to the buffer register. Cascaded Operation: The channel 1 counter (TCNT1), channel 2 counter (TCNT2), channel 4 counter (TCNT4), and channel 5 counter (TCNT5) can be connected together to operate as a 32bit counter. PWM Mode: In this mode, a PWM waveform is output. The output level can be set by means of TIOR. A PWM waveform with a duty of between 0% and 100% can be output, according to the setting of each TGR register. Phase Counting Mode: In this mode, TCNT is incremented or decremented by detecting the phases of two clocks input from the external clock input pins in channels 1, 2, 4, and 5. When phase counting mode is set, the corresponding TCLK pin functions as the clock pin, and TCNT performs up- or down-counting. This can be used for two-phase encoder pulse input. 554 11.4.2 Basic Functions Counter Operation: When one of bits CST0 to CST5 is set to 1 in TSTR, the TCNT counter for the corresponding channel starts counting. TCNT can operate as a free-running counter, periodic counter, and so on. * Example of count operation setting procedure Figure 11-6 shows an example of the count operation setting procedure. Operation selection Select counter clock [1] [1] Select the counter clock with bits TPSC2 to TPSC0 in TCR. At the same time, select the input clock edge with bits CKEG1 and CKEG0 in TCR. Free-running counter [2] For periodic counter operation, select the TGR to be used as the TCNT clearing source with bits CCLR2 to CCLR0 in TCR. [3] Designate the TGR selected in [2] as an output compare register by means of TIOR. [4] Set the periodic counter cycle in the TGR selected in [2]. Start count operation Periodic counter Select counter clearing source [2] Select output compare register [3] Set period [4] Start count operation [5] Figure 11-6 Example of Counter Operation Setting Procedure 555 * Free-running count operation and periodic count operation Immediately after a reset, the TPU's TCNT counters are all designated as free-running counters. When the relevant bit in TSTR is set to 1 the corresponding TCNT counter starts upcount operation as a free-running counter. When TCNT overflows (from H'FFFF to H'0000), the TCFV bit in TSR is set to 1. If the value of the corresponding TCIEV bit in TIER is 1 at this point, the TPU requests an interrupt. After overflow, TCNT starts counting up again from H'0000. Figure 11-7 illustrates free-running counter operation. TCNT value H'FFFF H'0000 Time CST bit TCFV Figure 11-7 Free-Running Counter Operation When compare match is selected as the TCNT clearing source, the TCNT counter for the relevant channel performs periodic count operation. The TGR register for setting the period is designated as an output compare register, and counter clearing by compare match is selected by means of bits CCLR2 to CCLR0 in TCR. After the settings have been made, TCNT starts up-count operation as periodic counter when the corresponding bit in TSTR is set to 1. When the count value matches the value in TGR, the TGF bit in TSR is set to 1 and TCNT is cleared to H'0000. If the value of the corresponding TGIE bit in TIER is 1 at this point, the TPU requests an interrupt. After a compare match, TCNT starts counting up again from H'0000. 556 Figure 11-8 illustrates periodic counter operation. Counter cleared by TGR compare match TCNT value TGR H'0000 Time CST bit Flag cleared by software or DTC*/DMAC* activation TGF Note: * DMAC and DTC functions are not available in the H8S/2695. Figure 11-8 Periodic Counter Operation Waveform Output by Compare Match: The TPU can perform 0, 1, or toggle output from the corresponding output pin using compare match. * Example of setting procedure for waveform output by compare match Figure 11-9 shows an example of the setting procedure for waveform output by compare match [1] Select initial value 0 output or 1 output, and compare match output value 0 output, 1 output, or toggle output, by means of TIOR. The set initial value is output at the TIOC pin until the first compare match occurs. [2] Set the timing for compare match generation in TGR. Set output timing [2] Output selection Select waveform output mode [1] [3] Set the CST bit in TSTR to 1 to start the count operation. Start count operation [3] Figure 11-9 Example of Setting Procedure for Waveform Output by Compare Match 557 * Examples of waveform output operation Figure 11-10 shows an example of 0 output/1 output. In this example TCNT has been designated as a free-running counter, and settings have been made so that 1 is output by compare match A, and 0 is output by compare match B. When the set level and the pin level coincide, the pin level does not change. TCNT value H'FFFF TGRA TGRB H'0000 No change TIOCA TIOCB No change No change No change 1 output 0 output Time Figure 11-10 Example of 0 Output/1 Output Operation Figure 11-11 shows an example of toggle output. In this example TCNT has been designated as a periodic counter (with counter clearing performed by compare match B), and settings have been made so that output is toggled by both compare match A and compare match B. TCNT value Counter cleared by TGRB compare match H'FFFF TGRB TGRA H'0000 Time Toggle output Toggle output TIOCB TIOCA Figure 11-11 Example of Toggle Output Operation 558 Input Capture Function: The TCNT value can be transferred to TGR on detection of the TIOC pin input edge. Rising edge, falling edge, or both edges can be selected as the detected edge. For channels 0, 1, 3, and 4, it is also possible to specify another channel's counter input clock or compare match signal as the input capture source. Note: When another channel's counter input clock is used as the input capture input for channels 0 and 3, o/1 should not be selected as the counter input clock used for input capture input. Input capture will not be generated if o/1 is selected. * Example of input capture operation setting procedure Figure 11-12 shows an example of the input capture operation setting procedure. Input selection [1] Designate TGR as an input capture register by means of TIOR, and select rising edge, falling edge, or both edges as the input capture source and input signal edge. [1] Select input capture input [2] Set the CST bit in TSTR to 1 to start the count operation. Start count [2] Figure 11-12 Example of Input Capture Operation Setting Procedure 559 * Example of input capture operation Figure 11-13 shows an example of input capture operation. In this example both rising and falling edges have been selected as the TIOCA pin input capture input edge, falling edge has been selected as the TIOCB pin input capture input edge, and counter clearing by TGRB input capture has been designated for TCNT. TCNT value H'0180 H'0160 Counter cleared by TIOCB input (falling edge) H'0010 H'0005 H'0000 Time TIOCA TGRA H'0005 H'0160 H'0010 TIOCB TGRB H'0180 Figure 11-13 Example of Input Capture Operation 560 11.4.3 Synchronous Operation In synchronous operation, the values in a number of TCNT counters can be rewritten simultaneously (synchronous presetting). Also, a number of TCNT counters can be cleared simultaneously by making the appropriate setting in TCR (synchronous clearing). Synchronous operation enables TGR to be incremented with respect to a single time base. Channels 0 to 5 can all be designated for synchronous operation. Example of Synchronous Operation Setting Procedure: Figure 11-14 shows an example of the synchronous operation setting procedure. Synchronous operation selection Set synchronous operation [1] Synchronous presetting Synchronous clearing Set TCNT [2] Clearing source generation channel? Yes Select counter clearing source Start count No [3] [5] Set synchronous counter clearing Start count [4] [5] [1] [2] [3] [4] [5] Set to 1 the SYNC bits in TSYR corresponding to the channels to be designated for synchronous operation. When the TCNT counter of any of the channels designated for synchronous operation is written to, the same value is simultaneously written to the other TCNT counters. Use bits CCLR2 to CCLR0 in TCR to specify TCNT clearing by input capture/output compare, etc. Use bits CCLR2 to CCLR0 in TCR to designate synchronous clearing for the counter clearing source. Set to 1 the CST bits in TSTR for the relevant channels, to start the count operation. Figure 11-14 Example of Synchronous Operation Setting Procedure 561 Example of Synchronous Operation: Figure 11-15 shows an example of synchronous operation. In this example, synchronous operation and PWM mode 1 have been designated for channels 0 to 2, TGR0B compare match has been set as the channel 0 counter clearing source, and synchronous clearing has been set for the channel 1 and 2 counter clearing source. Three-phase PWM waveforms are output from pins TIOC0A, TIOC1A, and TIOC2A. At this time, synchronous presetting, and synchronous clearing by TGR0B compare match, is performed for channels 0 to 2 TCNT counters, and the data set in TGR0B is used as the PWM cycle. For details of PWM modes, see section 11.4.6, PWM Modes. Synchronous clearing by TGR0B compare match TCNT0 to TCNT2 values TGR0B TGR1B TGR0A TGR2B TGR1A TGR2A H'0000 Time TIOC0A TIOC1A TIOC2A Figure 11-15 Example of Synchronous Operation 562 11.4.4 Buffer Operation Buffer operation, provided for channels 0 and 3, enables TGRC and TGRD to be used as buffer registers. Buffer operation differs depending on whether TGR has been designated as an input capture register or as a compare match register. Table 11-5 shows the register combinations used in buffer operation. Table 11-5 Register Combinations in Buffer Operation Channel 0 Timer General Register TGR0A TGR0B 3 TGR3A TGR3B Buffer Register TGR0C TGR0D TGR3C TGR3D * When TGR is an output compare register When a compare match occurs, the value in the buffer register for the corresponding channel is transferred to the timer general register. This operation is illustrated in figure 11-16. Compare match signal Buffer register Timer general register Comparator TCNT Figure 11-16 Compare Match Buffer Operation 563 * When TGR is an input capture register When input capture occurs, the value in TCNT is transferred to TGR and the value previously held in the timer general register is transferred to the buffer register. This operation is illustrated in figure 11-17. Input capture signal Timer general register Buffer register TCNT Figure 11-17 Input Capture Buffer Operation Example of Buffer Operation Setting Procedure: Figure 11-18 shows an example of the buffer operation setting procedure. Buffer operation [1] Designate TGR as an input capture register or output compare register by means of TIOR. [1] Select TGR function [2] Designate TGR for buffer operation with bits BFA and BFB in TMDR. [3] Set the CST bit in TSTR to 1 to start the count operation. Set buffer operation [2] Start count [3] Figure 11-18 Example of Buffer Operation Setting Procedure 564 Examples of Buffer Operation * When TGR is an output compare register Figure 11-19 shows an operation example in which PWM mode 1 has been designated for channel 0, and buffer operation has been designated for TGRA and TGRC. The settings used in this example are TCNT clearing by compare match B, 1 output at compare match A, and 0 output at compare match B. As buffer operation has been set, when compare match A occurs the output changes and the value in buffer register TGRC is simultaneously transferred to timer general register TGRA. This operation is repeated each time compare match A occurs. For details of PWM modes, see section 11.4.6, PWM Modes. TCNT value TGR0B H'0200 TGR0A H'0000 TGR0C H'0200 Transfer TGR0A H'0200 H'0450 H'0450 H'0520 Time H'0520 H'0450 TIOCA Figure 11-19 Example of Buffer Operation (1) 565 * When TGR is an input capture register Figure 11-20 shows an operation example in which TGRA has been designated as an input capture register, and buffer operation has been designated for TGRA and TGRC. Counter clearing by TGRA input capture has been set for TCNT, and both rising and falling edges have been selected as the TIOCA pin input capture input edge. As buffer operation has been set, when the TCNT value is stored in TGRA upon occurrence of input capture A, the value previously stored in TGRA is simultaneously transferred to TGRC. TCNT value H'0F07 H'09FB H'0532 H'0000 Time TIOCA TGRA H'0532 H'0F07 H'09FB TGRC H'0532 H'0F07 Figure 11-20 Example of Buffer Operation (2) 566 11.4.5 Cascaded Operation In cascaded operation, two 16-bit counters for different channels are used together as a 32-bit counter. This function works by counting the channel 1 (channel 4) counter clock upon overflow/underflow of TCNT2 (TCNT5) as set in bits TPSC2 to TPSC0 in TCR. Underflow occurs only when the lower 16-bit TCNT is in phase-counting mode. Table 11-6 shows the register combinations used in cascaded operation. Note: When phase counting mode is set for channels 1 or 4, the counter clock setting is invalid and the counter operates independently in phase counting mode. Table 11-6 Cascaded Combinations Combination Channels 1 and 2 Channels 4 and 5 Upper 16 Bits TCNT1 TCNT4 Lower 16 Bits TCNT2 TCNT5 Example of Cascaded Operation Setting Procedure: Figure 11-21 shows an example of the setting procedure for cascaded operation. Cascaded operation [1] Set bits TPSC2 to TPSC0 in the channel 1 (channel 4) TCR to B'111 to select TCNT2 (TCNT5) overflow/underflow counting. [1] Set cascading [2] Set the CST bit in TSTR for the upper and lower channel to 1 to start the count operation. Start count [2] Figure 11-21 Cascaded Operation Setting Procedure 567 Examples of Cascaded Operation: Figure 11-22 illustrates the operation when counting upon TCNT2 overflow/underflow has been set for TCNT1, TGR1A and TGR2A have been designated as input capture registers, and TIOC pin rising edge has been selected. When a rising edge is input to the TIOCA1 and TIOCA2 pins simultaneously, the upper 16 bits of the 32-bit data are transferred to TGR1A, and the lower 16 bits to TGR2A. TCNT1 clock TCNT1 TCNT2 clock TCNT2 TIOCA1, TIOCA2 TGR1A H'03A2 H'FFFF H'0000 H'0001 H'03A1 H'03A2 TGR2A H'0000 Figure 11-22 Example of Cascaded Operation (1) Figure 11-23 illustrates the operation when counting upon TCNT2 overflow/underflow has been set for TCNT1, and phase counting mode has been designated for channel 2. TCNT1 is incremented by TCNT2 overflow and decremented by TCNT2 underflow. TCLKC TCLKD TCNT2 FFFD FFFE FFFF 0000 0001 0002 0001 0000 FFFF TCNT1 0000 0001 0000 Figure 11-23 Example of Cascaded Operation (2) 568 11.4.6 PWM Modes In PWM mode, PWM waveforms are output from the output pins. 0, 1, or toggle output can be selected as the output level in response to compare match of each TGR. Designating TGR compare match as the counter clearing source enables the period to be set in that register. All channels can be designated for PWM mode independently. Synchronous operation is also possible. There are two PWM modes, as described below. * PWM mode 1 PWM output is generated from the TIOCA and TIOCC pins by pairing TGRA with TGRB and TGRC with TGRD. The output specified by bits IOA3 to IOA0 and IOC3 to IOC0 in TIOR is output from the TIOCA and TIOCC pins at compare matches A and C, and the output specified by bits IOB3 to IOB0 and IOD3 to IOD0 in TIOR is output at compare matches B and D. The initial output value is the value set in TGRA or TGRC. If the set values of paired TGRs are identical, the output value does not change when a compare match occurs. In PWM mode 1, a maximum 8-phase PWM output is possible. * PWM mode 2 PWM output is generated using one TGR as the cycle register and the others as duty registers. The output specified in TIOR is performed by means of compare matches. Upon counter clearing by a synchronization register compare match, the output value of each pin is the initial value set in TIOR. If the set values of the cycle and duty registers are identical, the output value does not change when a compare match occurs. In PWM mode 2, a maximum 15-phase PWM output is possible by combined use with synchronous operation. The correspondence between PWM output pins and registers is shown in table 11-7. 569 Table 11-7 PWM Output Registers and Output Pins Output Pins Channel 0 Registers TGR0A TGR0B TGR0C TGR0D 1 TGR1A TGR1B 2 TGR2A TGR2B 3 TGR3A TGR3B TGR3C TGR3D 4 TGR4A TGR4B 5 TGR5A TGR5B TIOCA5 TIOCA4 TIOCC3 TIOCA3 TIOCA2 TIOCA1 TIOCC0 PWM Mode 1 TIOCA0 PWM Mode 2 TIOCA0 TIOCB0 TIOCC0 TIOCD0 TIOCA1 TIOCB1 TIOCA2 TIOCB2 TIOCA3 TIOCB3 TIOCC3 TIOCD3 TIOCA4 TIOCB4 TIOCA5 TIOCB5 Note: In PWM mode 2, PWM output is not possible for the TGR register in which the period is set. 570 Example of PWM Mode Setting Procedure: Figure 11-24 shows an example of the PWM mode setting procedure. PWM mode Select counter clock [1] [1] Select the counter clock with bits TPSC2 to TPSC0 in TCR. At the same time, select the input clock edge with bits CKEG1 and CKEG0 in TCR. [2] Use bits CCLR2 to CCLR0 in TCR to select the TGR to be used as the TCNT clearing source. Select counter clearing source [2] Select waveform output level [3] [3] Use TIOR to designate the TGR as an output compare register, and select the initial value and output value. [4] Set the cycle in the TGR selected in [2], and set the duty in the other the TGR. [5] Select the PWM mode with bits MD3 to MD0 in TMDR. Set TGR [4] Set PWM mode [5] [6] Set the CST bit in TSTR to 1 to start the count operation. Start count [6] Figure 11-24 Example of PWM Mode Setting Procedure Examples of PWM Mode Operation: Figure 11-25 shows an example of PWM mode 1 operation. In this example, TGRA compare match is set as the TCNT clearing source, 0 is set for the TGRA initial output value and output value, and 1 is set as the TGRB output value. In this case, the value set in TGRA is used as the period, and the values set in TGRB registers as the duty. 571 TCNT value TGRA Counter cleared by TGRA compare match TGRB H'0000 Time TIOCA Figure 11-25 Example of PWM Mode Operation (1) Figure 11-26 shows an example of PWM mode 2 operation. In this example, synchronous operation is designated for channels 0 and 1, TGR1B compare match is set as the TCNT clearing source, and 0 is set for the initial output value and 1 for the output value of the other TGR registers (TGR0A to TGR0D, TGR1A), to output a 5-phase PWM waveform. In this case, the value set in TGR1B is used as the cycle, and the values set in the other TGRs as the duty. Counter cleared by TGR1B compare match TCNT value TGR1B TGR1A TGR0D TGR0C TGR0B TGR0A H'0000 Time TIOCA0 TIOCB0 TIOCC0 TIOCD0 TIOCA1 Figure 11-26 Example of PWM Mode Operation (2) 572 Figure 11-27 shows examples of PWM waveform output with 0% duty and 100% duty in PWM mode. TCNT value TGRA TGRB rewritten TGRB H'0000 0% duty TGRB rewritten TGRB rewritten Time TIOCA Output does not change when cycle register and duty register compare matches occur simultaneously TCNT value TGRB rewritten TGRA TGRB rewritten TGRB H'0000 100% duty TGRB rewritten Time TIOCA Output does not change when cycle register and duty register compare matches occur simultaneously TCNT value TGRB rewritten TGRA TGRB rewritten TGRB H'0000 100% duty 0% duty TGRB rewritten Time TIOCA Figure 11-27 Example of PWM Mode Operation (3) 573 11.4.7 Phase Counting Mode In phase counting mode, the phase difference between two external clock inputs is detected and TCNT is incremented/decremented accordingly. This mode can be set for channels 1, 2, 4, and 5. When phase counting mode is set, an external clock is selected as the counter input clock and TCNT operates as an up/down-counter regardless of the setting of bits TPSC2 to TPSC0 and bits CKEG1 and CKEG0 in TCR. However, the functions of bits CCLR1 and CCLR0 in TCR, and of TIOR, TIER, and TGR are valid, and input capture/compare match and interrupt functions can be used. When overflow occurs while TCNT is counting up, the TCFV flag in TSR is set; when underflow occurs while TCNT is counting down, the TCFU flag is set. The TCFD bit in TSR is the count direction flag. Reading the TCFD flag provides an indication of whether TCNT is counting up or down. Table 11-8 shows the correspondence between external clock pins and channels. Table 11-8 Phase Counting Mode Clock Input Pins External Clock Pins Channels When channel 1 or 5 is set to phase counting mode When channel 2 or 4 is set to phase counting mode A-Phase TCLKA TCLKC B-Phase TCLKB TCLKD Example of Phase Counting Mode Setting Procedure: Figure 11-28 shows an example of the phase counting mode setting procedure. [1] Select phase counting mode with bits MD3 to MD0 in TMDR. [2] Set the CST bit in TSTR to 1 to start the count operation. Phase counting mode Select phase counting mode [1] Start count [2] Figure 11-28 Example of Phase Counting Mode Setting Procedure 574 Examples of Phase Counting Mode Operation: In phase counting mode, TCNT counts up or down according to the phase difference between two external clocks. There are four modes, according to the count conditions. * Phase counting mode 1 Figure 11-29 shows an example of phase counting mode 1 operation, and table 11-9 summarizes the TCNT up/down-count conditions. TCLKA (channels 1 and 5) TCLKC (channels 2 and 4) TCLKB (channels 1 and 5) TCLKD (channels 2 and 4) TCNT value Up-count Down-count Time Figure 11-29 Example of Phase Counting Mode 1 Operation Table 11-9 Up/Down-Count Conditions in Phase Counting Mode 1 TCLKA (Channels 1 and 5) TCLKC (Channels 2 and 4) High level Low level Low level High level High level Low level High level Low level Legend : Rising edge : Falling edge Down-count TCLKB (Channels 1 and 5) TCLKD (Channels 2 and 4) Operation Up-count 575 * Phase counting mode 2 Figure 11-30 shows an example of phase counting mode 2 operation, and table 11-10 summarizes the TCNT up/down-count conditions. TCLKA (Channels 1 and 5) TCLKC (Channels 2 and 4) TCLKB (Channels 1 and 5) TCLKD (Channels 2 and 4) TCNT value Up-count Down-count Time Figure 11-30 Example of Phase Counting Mode 2 Operation Table 11-10 Up/Down-Count Conditions in Phase Counting Mode 2 TCLKA (Channels 1 and 5) TCLKC (Channels 2 and 4) High level Low level Low level High level High level Low level High level Low level Legend : Rising edge : Falling edge TCLKB (Channels 1 and 5) TCLKD (Channels 2 and 4) Operation Don't care Don't care Don't care Up-count Don't care Don't care Don't care Down-count 576 * Phase counting mode 3 Figure 11-31 shows an example of phase counting mode 3 operation, and table 11-11 summarizes the TCNT up/down-count conditions. TCLKA (channels 1 and 5) TCLKC (channels 2 and 4) TCLKB (channels 1 and 5) TCLKD (channels 2 and 4) TCNT value Up-count Down-count Time Figure 11-31 Example of Phase Counting Mode 3 Operation Table 11-11 Up/Down-Count Conditions in Phase Counting Mode 3 TCLKA (Channels 1 and 5) TCLKC (Channels 2 and 4) High level Low level Low level High level High level Low level High level Low level Legend : Rising edge : Falling edge TCLKB (Channels 1 and 5) TCLKD (Channels 2 and 4) Operation Don't care Don't care Don't care Up-count Down-count Don't care Don't care Don't care 577 * Phase counting mode 4 Figure 11-32 shows an example of phase counting mode 4 operation, and table 11-12 summarizes the TCNT up/down-count conditions. TCLKA (channels 1 and 5) TCLKC (channels 2 and 4) TCLKB (channels 1 and 5) TCLKD (channels 2 and 4) TCNT value Down-count Up-count Time Figure 11-32 Example of Phase Counting Mode 4 Operation Table 11-12 Up/Down-Count Conditions in Phase Counting Mode 4 TCLKA (Channels 1 and 5) TCLKC (Channels 2 and 4) High level Low level Low level High level High level Low level High level Low level Legend : Rising edge : Falling edge Don't care Down-count Don't care TCLKB (Channels 1 and 5) TCLKD (Channels 2 and 4) Operation Up-count 578 Phase Counting Mode Application Example: Figure 11-33 shows an example in which phase counting mode is designated for channel 1, and channel 1 is coupled with channel 0 to input servo motor 2-phase encoder pulses in order to detect the position or speed. Channel 1 is set to phase counting mode 1, and the encoder pulse A-phase and B-phase are input to TCLKA and TCLKB. Channel 0 operates with TCNT counter clearing by TGR0C compare match; TGR0A and TGR0C are used for the compare match function, and are set with the speed control period and position control period. TGR0B is used for input capture, with TGR0B and TGR0D operating in buffer mode. The channel 1 counter input clock is designated as the TGR0B input capture source, and detection of the pulse width of 2-phase encoder 4-multiplication pulses is performed. TGR1A and TGR1B for channel 1 are designated for input capture, channel 0 TGR0A and TGR0C compare matches are selected as the input capture source, and store the up/down-counter values for the control periods. This procedure enables accurate position/speed detection to be achieved. 579 Channel 1 TCLKA TCLKB Edge detection circuit TCNT1 TGR1A (speed period capture) TGR1B (position period capture) TCNT0 + TGR0A (speed control period) - TGR0C (position control period) + - TGR0B (pulse width capture) TGR0D (buffer operation) Channel 0 Figure 11-33 Phase Counting Mode Application Example 580 11.5 11.5.1 Interrupts Interrupt Sources and Priorities There are three kinds of TPU interrupt source: TGR input capture/compare match, TCNT overflow, and TCNT underflow. Each interrupt source has its own status flag and enable/disabled bit, allowing generation of interrupt request signals to be enabled or disabled individually. When an interrupt request is generated, the corresponding status flag in TSR is set to 1. If the corresponding enable/disable bit in TIER is set to 1 at this time, an interrupt is requested. The interrupt request is cleared by clearing the status flag to 0. Relative channel priorities can be changed by the interrupt controller, but the priority order within a channel is fixed. For details, see section 5, Interrupt Controller. Table 11-13 lists the TPU interrupt sources. 581 Table 11-13 TPU Interrupts Channel 0 Interrupt Source Description TGI0A TGI0B TGI0C TGI0D TCI0V 1 TGI1A TGI1B TCI1V TCI1U 2 TGI2A TGI2B TCI2V TCI2U 3 TGI3A TGI3B TGI3C TGI3D TCI3V 4 TGI4A TGI4B TCI4V TCI4U 5 TGI5A TGI5B TCI5V TCI5U DMAC* Activation DTC* Activation Possible Priority High TGR0A input capture/compare match Possible TGR0B input capture/compare match Not possible Possible TGR0C input capture/compare match Not possible Possible TGR0D input capture/compare match Not possible Possible TCNT0 overflow Not possible Not possible Possible TGR1A input capture/compare match Possible TGR1B input capture/compare match Not possible Possible TCNT1 overflow TCNT1 underflow Not possible Not possible Not possible Not possible Possible TGR2A input capture/compare match Possible TGR2B input capture/compare match Not possible Possible TCNT2 overflow TCNT2 underflow Not possible Not possible Not possible Not possible Possible TGR3A input capture/compare match Possible TGR3B input capture/compare match Not possible Possible TGR3C input capture/compare match Not possible Possible TGR3D input capture/compare match Not possible Possible TCNT3 overflow Not possible Not possible Possible TGR4A input capture/compare match Possible TGR4B input capture/compare match Not possible Possible TCNT4 overflow TCNT4 underflow Not possible Not possible Not possible Not possible Possible TGR5A input capture/compare match Possible TGR5B input capture/compare match Not possible Possible TCNT5 overflow TCNT5 underflow Not possible Not possible Not possible Not possible Low Notes: This table shows the initial state immediately after a reset. The relative channel priorities can be changed by the interrupt controller. * DMAC and DTC functions are not available in the H8S/2695. 582 Input Capture/Compare Match Interrupt: An interrupt is requested if the TGIE bit in TIER is set to 1 when the TGF flag in TSR is set to 1 by the occurrence of a TGR input capture/compare match on a particular channel. The interrupt request is cleared by clearing the TGF flag to 0. The TPU has 16 input capture/compare match interrupts, four each for channels 0 and 3, and two each for channels 1, 2, 4, and 5. Overflow Interrupt: An interrupt is requested if the TCIEV bit in TIER is set to 1 when the TCFV flag in TSR is set to 1 by the occurrence of TCNT overflow on a channel. The interrupt request is cleared by clearing the TCFV flag to 0. The TPU has six overflow interrupts, one for each channel. Underflow Interrupt: An interrupt is requested if the TCIEU bit in TIER is set to 1 when the TCFU flag in TSR is set to 1 by the occurrence of TCNT underflow on a channel. The interrupt request is cleared by clearing the TCFU flag to 0. The TPU has four underflow interrupts, one each for channels 1, 2, 4, and 5. 11.5.2 DTC/DMAC Activation (This function is not available in the H8S/2695) DTC Activation: The DTC can be activated by the TGR input capture/compare match interrupt for a channel. For details, see section 9, Data Transfer Controller (DTC). A total of 16 TPU input capture/compare match interrupts can be used as DTC activation sources, four each for channels 0 and 3, and two each for channels 1, 2, 4, and 5. DMAC Activation: It is possible to activate the DMAC by the TGRA input capture/compare match interrupt for each channel. See section 8, DMA Controller (DMAC) for details. In TPU, it is possible to set the TGRA input capture/compare match interrupts for each channel, giving a total of 6, as DMAC activation factors. 11.5.3 A/D Converter Activation The A/D converter can be activated by the TGRA input capture/compare match for a channel. If the TTGE bit in TIER is set to 1 when the TGFA flag in TSR is set to 1 by the occurrence of a TGRA input capture/compare match on a particular channel, a request to start A/D conversion is sent to the A/D converter. If the TPU conversion start trigger has been selected on the A/D converter side at this time, A/D conversion is started. In the TPU, a total of six TGRA input capture/compare match interrupts can be used as A/D converter conversion start sources, one for each channel. 583 11.6 11.6.1 Operation Timing Input/Output Timing TCNT Count Timing: Figure 11-34 shows TCNT count timing in internal clock operation, and figure 11-35 shows TCNT count timing in external clock operation. o Internal clock Falling edge Rising edge TCNT input clock TCNT N-1 N N+1 N+2 Figure 11-34 Count Timing in Internal Clock Operation o External clock Falling edge Rising edge Falling edge TCNT input clock TCNT N-1 N N+1 N+2 Figure 11-35 Count Timing in External Clock Operation 584 Output Compare Output Timing: A compare match signal is generated in the final state in which TCNT and TGR match (the point at which the count value matched by TCNT is updated). When a compare match signal is generated, the output value set in TIOR is output at the output compare output pin (TIOC pin). After a match between TCNT and TGR, the compare match signal is not generated until the TCNT input clock is generated. Figure 11-36 shows output compare output timing. o TCNT input clock TCNT N N+1 TGR N Compare match signal TIOC pin Figure 11-36 Output Compare Output Timing Input Capture Signal Timing: Figure 11-37 shows input capture signal timing. o Input capture input Input capture signal TCNT N N+1 N+2 TGR N N+2 Figure 11-37 Input Capture Input Signal Timing 585 Timing for Counter Clearing by Compare Match/Input Capture: Figure 11-38 shows the timing when counter clearing by compare match occurrence is specified, and figure 11-39 shows the timing when counter clearing by input capture occurrence is specified. o Compare match signal Counter clear signal N H'0000 TCNT TGR N Figure 11-38 Counter Clear Timing (Compare Match) o Input capture signal Counter clear signal N H'0000 TCNT TGR N Figure 11-39 Counter Clear Timing (Input Capture) 586 Buffer Operation Timing: Figures 11-40 and 11-41 show the timing in buffer operation. o TCNT n n+1 Compare match signal TGRA, TGRB TGRC, TGRD n N N Figure 11-40 Buffer Operation Timing (Compare Match) o Input capture signal TCNT TGRA, TGRB TGRC, TGRD N N+1 n N N+1 n N Figure 11-41 Buffer Operation Timing (Input Capture) 587 11.6.2 Interrupt Signal Timing TGF Flag Setting Timing in Case of Compare Match: Figure 11-42 shows the timing for setting of the TGF flag in TSR by compare match occurrence, and TGI interrupt request signal timing. o TCNT input clock TCNT N N+1 TGR N Compare match signal TGF flag TGI interrupt Figure 11-42 TGI Interrupt Timing (Compare Match) 588 TGF Flag Setting Timing in Case of Input Capture: Figure 11-43 shows the timing for setting of the TGF flag in TSR by input capture occurrence, and TGI interrupt request signal timing. o Input capture signal TCNT N TGR N TGF flag TGI interrupt Figure 11-43 TGI Interrupt Timing (Input Capture) 589 TCFV Flag/TCFU Flag Setting Timing: Figure 11-44 shows the timing for setting of the TCFV flag in TSR by overflow occurrence, and TCIV interrupt request signal timing. Figure 11-45 shows the timing for setting of the TCFU flag in TSR by underflow occurrence, and TCIU interrupt request signal timing. o TCNT input clock TCNT (overflow) Overflow signal TCFV flag H'FFFF H'0000 TCIV interrupt Figure 11-44 TCIV Interrupt Setting Timing o TCNT input clock TCNT (underflow) Underflow signal H'0000 H'FFFF TCFU flag TCIU interrupt Figure 11-45 TCIU Interrupt Setting Timing 590 Status Flag Clearing Timing: After a status flag is read as 1 by the CPU, it is cleared by writing 0 to it. When the DTC* or DMAC* is activated, the flag is cleared automatically. Figure 11-46 shows the timing for status flag clearing by the CPU, and figure 11-47 shows the timing for status flag clearing by the DTC* or DMAC*. Note: * DMAC and DTC functions are not available in the H8S/2695. TSR write cycle T1 T2 o Address TSR address Write signal Status flag Interrupt request signal Figure 11-46 Timing for Status Flag Clearing by CPU DTC*/DMAC* read cycle T1 o T2 DTC*/DMAC* write cycle T1 T2 Address Source address Destination address Status flag Interrupt request signal Note: * DMAC and DTC functions are not available in the H8S/2695. Figure 11-47 Timing for Status Flag Clearing by DTC* or DMAC * Activation 591 11.7 Usage Notes Note that the kinds of operation and contention described below occur during TPU operation. Input Clock Restrictions: The input clock pulse width must be at least 1.5 states in the case of single-edge detection, and at least 2.5 states in the case of both-edge detection. The TPU will not operate properly with a narrower pulse width. In phase counting mode, the phase difference and overlap between the two input clocks must be at least 1.5 states, and the pulse width must be at least 2.5 states. Figure 11-48 shows the input clock conditions in phase counting mode. Overlap TCLKA (TCLKC) TCLKB (TCLKD) Phase Phase differdifference Overlap ence Pulse width Pulse width Pulse width Pulse width Notes: Phase difference and overlap : 1.5 states or more : 2.5 states or more Pulse width Figure 11-48 Phase Difference, Overlap, and Pulse Width in Phase Counting Mode Caution on Period Setting: When counter clearing by compare match is set, TCNT is cleared in the final state in which it matches the TGR value (the point at which the count value matched by TCNT is updated). Consequently, the actual counter frequency is given by the following formula: f= Where o (N + 1) f : Counter frequency o : Operating frequency N : TGR set value 592 Contention between TCNT Write and Clear Operations: If the counter clear signal is generated in the T2 state of a TCNT write cycle, TCNT clearing takes precedence and the TCNT write is not performed. Figure 11-49 shows the timing in this case. TCNT write cycle T1 T2 o Address TCNT address Write signal Counter clear signal TCNT N H'0000 Figure 11-49 Contention between TCNT Write and Clear Operations 593 Contention between TCNT Write and Increment Operations: If incrementing occurs in the T2 state of a TCNT write cycle, the TCNT write takes precedence and TCNT is not incremented. Figure 11-50 shows the timing in this case. TCNT write cycle T1 T2 o Address TCNT address Write signal TCNT input clock N TCNT write data M TCNT Figure 11-50 Contention between TCNT Write and Increment Operations 594 Contention between TGR Write and Compare Match: If a compare match occurs in the T2 state of a TGR write cycle, the TGR write takes precedence and the compare match signal is inhibited. A compare match does not occur even if the same value as before is written. Figure 11-51 shows the timing in this case. TGR write cycle T1 T2 o Address TGR address Write signal Compare match signal TCNT N N+1 Inhibited TGR N TGR write data M Figure 11-51 Contention between TGR Write and Compare Match 595 Contention between Buffer Register Write and Compare Match: If a compare match occurs in the T2 state of a TGR write cycle, the data transferred to TGR by the buffer operation will be the data prior to the write. Figure 11-52 shows the timing in this case. TGR write cycle T1 T2 o Address Buffer register address Write signal Compare match signal Buffer register write data Buffer register TGR N M N Figure 11-52 Contention between Buffer Register Write and Compare Match 596 Contention between TGR Read and Input Capture: If the input capture signal is generated in the T1 state of a TGR read cycle, the data that is read will be the data after input capture transfer. Figure 11-53 shows the timing in this case. TGR read cycle T1 T2 o Address TGR address Read signal Input capture signal TGR X M Internal data bus M Figure 11-53 Contention between TGR Read and Input Capture 597 Contention between TGR Write and Input Capture: If the input capture signal is generated in the T2 state of a TGR write cycle, the input capture operation takes precedence and the write to TGR is not performed. Figure 11-54 shows the timing in this case. TGR write cycle T1 T2 o Address TGR address Write signal Input capture signal TCNT M TGR M Figure 11-54 Contention between TGR Write and Input Capture 598 Contention between Buffer Register Write and Input Capture: If the input capture signal is generated in the T2 state of a buffer write cycle, the buffer operation takes precedence and the write to the buffer register is not performed. Figure 11-55 shows the timing in this case. Buffer register write cycle T1 T2 o Address Buffer register address Write signal Input capture signal TCNT N TGR Buffer register M N M Figure 11-55 Contention between Buffer Register Write and Input Capture 599 Contention between Overflow/Underflow and Counter Clearing: If overflow/underflow and counter clearing occur simultaneously, the TCFV/TCFU flag in TSR is not set and TCNT clearing takes precedence. Figure 11-56 shows the operation timing when a TGR compare match is specified as the clearing source, and H'FFFF is set in TGR. o TCNT input clock TCNT Counter clear signal TGF Disabled TCFV H'FFFF H'0000 Figure 11-56 Contention between Overflow and Counter Clearing 600 Contention between TCNT Write and Overflow/Underflow: If there is an up-count or downcount in the T2 state of a TCNT write cycle, and overflow/underflow occurs, the TCNT write takes precedence and the TCFV/TCFU flag in TSR is not set. Figure 11-57 shows the operation timing when there is contention between TCNT write and overflow. TCNT write cycle T1 T2 o Address TCNT address Write signal TCNT write data H'FFFF M TCNT TCFV flag Figure 11-57 Contention between TCNT Write and Overflow Multiplexing of I/O Pins: In the H8S/2633 Series, the TCLKA input pin is multiplexed with the TIOCC0 I/O pin, the TCLKB input pin with the TIOCD0 I/O pin, the TCLKC input pin with the TIOCB1 I/O pin, and the TCLKD input pin with the TIOCB2 I/O pin. When an external clock is input, compare match output should not be performed from a multiplexed pin. Interrupts and Module Stop Mode: If module stop mode is entered when an interrupt has been requested, it will not be possible to clear the CPU interrupt source or the DMAC* or DTC* activation source. Interrupts should therefore be disabled before entering module stop mode. Note: * This function is not available in the H8S/2695. 601 602 Section 12 Programmable Pulse Generator (PPG) (This function is not available in the H8S/2695) 12.1 Overview The H8S/2633 Series has a built-in programmable pulse generator (PPG) that provides pulse outputs by using the 16-bit timer-pulse unit (TPU) as a time base. The PPG pulse outputs are divided into 4-bit groups (group 3 and group 2) that can operate both simultaneously and independently. 12.1.1 Features PPG features are listed below. * 8-bit output data Maximum 8-bit data can be output, and output can be enabled on a bit-by-bit basis * Two output groups Output trigger signals can be selected in 4-bit groups to provide up to two different 4-bit outputs * Selectable output trigger signals Output trigger signals can be selected for each group from the compare match signals of four TPU channels * Non-overlap mode A non-overlap margin can be provided between pulse outputs * Can operate together with the data transfer controller (DTC) and DMA controller (DMAC) The compare match signals selected as output trigger signals can activate the DTC or DMAC for sequential output of data without CPU intervention * Settable inverted output Inverted data can be output for each group * Module stop mode can be set As the initial setting, PPG operation is halted. Register access is enabled by exiting module stop mode 603 12.1.2 Block Diagram Figure 12-1 shows a block diagram of the PPG. Compare match signals NDERH Control logic PMR NDERL PCR PO15 PO14 PO13 PO12 PO11 PO10 PO9 PO8 Pulse output pins, group 3 PODRH Pulse output pins, group 2 Pulse output pins, group 1 PODRL Pulse output pins, group 0 NDRL NDRH Internal data bus Legend PMR PCR NDERH NDERL NDRH NDRL PODRH PODRL : PPG output mode register : PPG output control register : Next data enable register H : Next data enable register L : Next data register H : Next data register L : Output data register H : Output data register L Figure 12-1 Block Diagram of PPG 604 12.1.3 Pin Configuration Table 12-1 summarizes the PPG pins. Table 12-1 PPG Pins Name Pulse output 8 Pulse output 9 Pulse output 10 Pulse output 11 Pulse output 12 Pulse output 13 Pulse output 14 Pulse output 15 Symbol PO8 PO9 PO10 PO11 PO12 PO13 PO14 PO15 I/O Output Output Output Output Output Output Output Output Group 3 pulse output Function Group 2 pulse output 605 12.1.4 Registers Table 12-2 summarizes the PPG registers. Table 12-2 PPG Registers Name PPG output control register PPG output mode register Next data enable register H Next data enable register L* Output data register H Output data register L* Next data register H Next data register L * 4 Port 1 data direction register Module stop control register A 4 4 Abbreviation PCR PMR NDERH NDERL PODRH PODRL NDRH NDRL P1DDR MSTPCRA R/W R/W R/W R/W R/W R/(W)* R/(W)* R/W R/W W R/W 2 2 Initial Value H'FF H'F0 H'00 H'00 H'00 H'00 H'00 H'00 H'00 H'3F Address* 1 H'FE26 H'FE27 H'FE28 H'FE29 H'FE2A H'FE2B H'FE2C* 3 H'FE2E H'FE2D* 3 H'FE2F H'FE30 H'FDE8 Notes: *1 Lower 16 bits of the address. *2 A bit that has been set for pulse output by NDER is read-only. *3 When the same output trigger is selected for pulse output groups 2 and 3 by the PCR setting, the NDRH address is H'FE2C. When the output triggers are different, the NDRH address is H'FE2E for group 2 and H'FE2C for group 3. Similarly, when the same output trigger is selected for pulse output groups 0 and 1 by the PCR setting, the NDRL address is H'FE2D. When the output triggers are different, the NDRL address is H'FE2F for group 0 and H'FE2D for group 1. *4 The H8S/2633 Series has no pins corresponding to pulse output groups 0 and 1. 606 12.2 12.2.1 Register Descriptions Next Data Enable Registers H and L (NDERH, NDERL) NDERH Bit : 7 6 5 4 3 2 1 0 NDER8 0 R/W NDER15 NDER14 NDER13 NDER12 NDER11 NDER10 NDER9 Initial value : R/W NDERL Bit : 7 NDER7 Initial value : R/W : 0 R/W 6 NDER6 0 R/W 5 NDER5 0 R/W 4 NDER4 0 R/W 3 NDER3 0 R/W 2 NDER2 0 R/W 1 NDER1 0 R/W : 0 R/W 0 R/W 0 R/W 0 R/W 0 R/W 0 R/W 0 R/W 0 NDER0 0 R/W NDERH and NDERL are 8-bit readable/writable registers that enable or disable pulse output on a bit-by-bit basis. If a bit is enabled for pulse output by NDERH or NDERL, the NDR value is automatically transferred to the corresponding PODR bit when the TPU compare match event specified by PCR occurs, updating the output value. If pulse output is disabled, the bit value is not transferred from NDR to PODR and the output value does not change. NDERH and NDERL are each initialized to H'00 by a reset and in hardware standby mode. They are not initialized in software standby mode. NDERH Bits 7 to 0--Next Data Enable 15 to 8 (NDER15 to NDER8): These bits enable or disable pulse output on a bit-by-bit basis. Bits 7 to 0 NDER15 to NDER8 0 1 Description Pulse outputs PO15 to PO8 are disabled (NDR15 to NDR8 are not transferred to POD15 to POD8) (Initial value) Pulse outputs PO15 to PO8 are enabled (NDR15 to NDR8 are transferred to POD15 to POD8) 607 NDERL Bits 7 to 0--Next Data Enable 7 to 0 (NDER7 to NDER0): These bits enable or disable pulse output on a bit-by-bit basis. However, the H8S/2633 Series has no output pins corresponding to NDRL. Bits 7 to 0 NDER7 to NDER0 0 1 Description Pulse outputs PO7 to PO0 are disabled (NDR7 to NDR0 are not transferred to POD7 to POD0) (Initial value) Pulse outputs PO7 to PO0 are enabled (NDR7 to NDR0 are transferred to POD7 to POD0) 12.2.2 Output Data Registers H and L (PODRH, PODRL) PODRH Bit : 7 POD15 Initial value : R/W PODRL Bit : 7 POD7 Initial value : R/W : 0 R/(W)* 6 POD6 0 R/(W)* 5 POD5 0 R/(W)* 4 POD4 0 R/(W)* 3 POD3 0 R/(W)* 2 POD2 0 R/(W)* 1 POD1 0 R/(W)* 0 POD0 0 R/(W)* : 0 R/(W)* 6 POD14 0 R/(W)* 5 POD13 0 R/(W)* 4 POD12 0 R/(W)* 3 POD11 0 R/(W)* 2 POD10 0 R/(W)* 1 POD9 0 R/(W)* 0 POD8 0 R/(W)* Note: * A bit that has been set for pulse output by NDER is read-only. PODRH and PODRL are 8-bit readable/writable registers that store output data for use in pulse output. However, the H8S/2633 Series has no pins corresponding to PODRL. 608 12.2.3 Next Data Registers H and L (NDRH, NDRL) NDRH and NDRL are 8-bit readable/writable registers that store the next data for pulse output. During pulse output, the contents of NDRH and NDRL are transferred to the corresponding bits in PODRH and PODRL when the TPU compare match event specified by PCR occurs. The NDRH and NDRL addresses differ depending on whether pulse output groups have the same output trigger or different output triggers. For details see section 12.2.4, Notes on NDR Access. NDRH and NDRL are each initialized to H'00 by a reset and in hardware standby mode. They are not initialized in software standby mode. 12.2.4 Notes on NDR Access The NDRH and NDRL addresses differ depending on whether pulse output groups have the same output trigger or different output triggers. Same Trigger for Pulse Output Groups: If pulse output groups 2 and 3 are triggered by the same compare match event, the NDRH address is H'FE2C. The upper 4 bits belong to group 3 and the lower 4 bits to group 2. Address H'FE2E consists entirely of reserved bits that cannot be modified and are always read as 1. Address H'FE2C Bit : 7 NDR15 Initial value : R/W : 0 R/W 6 NDR14 0 R/W 5 NDR13 0 R/W 4 NDR12 0 R/W 3 NDR11 0 R/W 2 NDR10 0 R/W 1 NDR9 0 R/W 0 NDR8 0 R/W Address H'FE2E Bit : 7 -- Initial value : R/W : 1 -- 6 -- 1 -- 5 -- 1 -- 4 -- 1 -- 3 -- 1 -- 2 -- 1 -- 1 -- 1 -- 0 -- 1 -- If pulse output groups 0 and 1 are triggered by the same compare match event, the NDRL address is H'FE2D. The upper 4 bits belong to group 1 and the lower 4 bits to group 0. Address H'FE2F consists entirely of reserved bits that cannot be modified and are always read as 1. However, the H8S/2633 Series has no output pins corresponding to pulse output groups 0 and 1. 609 Address H'FE2D Bit : 7 NDR7 Initial value : R/W : 0 R/W 6 NDR6 0 R/W 5 NDR5 0 R/W 4 NDR4 0 R/W 3 NDR3 0 R/W 2 NDR2 0 R/W 1 NDR1 0 R/W 0 NDR0 0 R/W Address H'FE2F Bit : 7 -- Initial value : R/W : 1 -- 6 -- 1 -- 5 -- 1 -- 4 -- 1 -- 3 -- 1 -- 2 -- 1 -- 1 -- 1 -- 0 -- 1 -- Different Triggers for Pulse Output Groups: If pulse output groups 2 and 3 are triggered by different compare match events, the address of the upper 4 bits in NDRH (group 3) is H'FE2C and the address of the lower 4 bits (group 2) is H'FE2E. Bits 3 to 0 of address H'FE2C and bits 7 to 4 of address H'FE2E are reserved bits that cannot be modified and are always read as 1. Address H'FE2C Bit : 7 NDR15 Initial value : R/W : 0 R/W 6 NDR14 0 R/W 5 NDR13 0 R/W 4 NDR12 0 R/W 3 -- 1 -- 2 -- 1 -- 1 -- 1 -- 0 -- 1 -- Address H'FE2E Bit : 7 -- Initial value : R/W : 1 -- 6 -- 1 -- 5 -- 1 -- 4 -- 1 -- 3 NDR11 0 R/W 2 NDR10 0 R/W 1 NDR9 0 R/W 0 NDR8 0 R/W If pulse output groups 0 and 1 are triggered by different compare match event, the address of the upper 4 bits in NDRL (group 1) is H'FE2D and the address of the lower 4 bits (group 0) is H'FE2F. Bits 3 to 0 of address H'FE2D and bits 7 to 4 of address H'FE2F are reserved bits that cannot be modified and are always read as 1. However, the H8S/2633 Series has no output pins corresponding to pulse output groups 0 and 1. 610 Address H'FE2D Bit : 7 NDR7 Initial value : R/W : 0 R/W 6 NDR6 0 R/W 5 NDR5 0 R/W 4 NDR4 0 R/W 3 -- 1 -- 2 -- 1 -- 1 -- 1 -- 0 -- 1 -- Address H'FE2F Bit : 7 -- Initial value : R/W : 1 -- 6 -- 1 -- 5 -- 1 -- 4 -- 1 -- 3 NDR3 0 R/W 2 NDR2 0 R/W 1 NDR1 0 R/W 0 NDR0 0 R/W 12.2.5 Bit PPG Output Control Register (PCR) : 7 6 5 4 3 2 1 0 G3CMS1 G3CMS0 G2CMS1 G2CMS0 G1CMS1 G1CMS0 G0CMS1 G0CMS0 Initial value : R/W : 1 R/W 1 R/W 1 R/W 1 R/W 1 R/W 1 R/W 1 R/W 1 R/W PCR is an 8-bit readable/writable register that selects output trigger signals for PPG outputs on a group-by-group basis. PCR is initialized to H'FF by a reset and in hardware standby mode. It is not initialized in software standby mode. Bits 7 and 6--Group 3 Compare Match Select 1 and 0 (G3CMS1, G3CMS0): These bits select the compare match that triggers pulse output group 3 (pins PO15 to PO12). Bit 7 G3CMS1 0 Bit 6 G3CMS0 0 1 1 0 1 Description Output Trigger for Pulse Output Group 3 Compare match in TPU channel 0 Compare match in TPU channel 1 Compare match in TPU channel 2 Compare match in TPU channel 3 (Initial value) 611 Bits 5 and 4--Group 2 Compare Match Select 1 and 0 (G2CMS1, G2CMS0): These bits select the compare match that triggers pulse output group 2 (pins PO11 to PO8). Bit 5 G2CMS1 0 Bit 4 G2CMS0 0 1 1 0 1 Description Output Trigger for Pulse Output Group 2 Compare match in TPU channel 0 Compare match in TPU channel 1 Compare match in TPU channel 2 Compare match in TPU channel 3 (Initial value) Bits 3 and 2--Group 1 Compare Match Select 1 and 0 (G1CMS1, G1CMS0): These bits select the compare match that triggers pulse output group 1 (pins PO7 to PO4). However, the H8S/2633 Series has no output pins corresponding to pulse output group 1. Bit 3 G1CMS1 0 Bit 2 G1CMS0 0 1 1 0 1 Description Output Trigger for Pulse Output Group 1 Compare match in TPU channel 0 Compare match in TPU channel 1 Compare match in TPU channel 2 Compare match in TPU channel 3 (Initial value) Bits 1 and 0--Group 0 Compare Match Select 1 and 0 (G0CMS1, G0CMS0): These bits select the compare match that triggers pulse output group 0 (pins PO3 to PO0). However, the H8S/2633 Series has no output pins corresponding to pulse output group 0. Bit 1 G0CMS1 0 Bit 0 G0CMS0 0 1 1 0 1 Description Output Trigger for Pulse Output Group 0 Compare match in TPU channel 0 Compare match in TPU channel 1 Compare match in TPU channel 2 Compare match in TPU channel 3 (Initial value) 612 12.2.6 Bit PPG Output Mode Register (PMR) : 7 G3INV 6 G2INV 1 R/W 5 G1INV 1 R/W 4 G0INV 1 R/W 3 G3NOV 0 R/W 2 G2NOV 0 R/W 1 G1NOV 0 R/W 0 G0NOV 0 R/W Initial value : R/W : 1 R/W PMR is an 8-bit readable/writable register that selects pulse output inversion and non-overlapping operation for each group. The output trigger period of a non-overlapping operation PPG output waveform is set in TGRB and the non-overlap margin is set in TGRA. The output values change at compare match A and B. For details, see section 12.3.4, Non-Overlapping Pulse Output. PMR is initialized to H'F0 by a reset and in hardware standby mode. It is not initialized in software standby mode. Bit 7--Group 3 Inversion (G3INV): Selects direct output or inverted output for pulse output group 3 (pins PO15 to PO12). Bit 7 G3INV 0 1 Description Inverted output for pulse output group 3 (low-level output at pin for a 1 in PODRH) Direct output for pulse output group 3 (high-level output at pin for a 1 in PODRH) (Initial value) Bit 6--Group 2 Inversion (G2INV): Selects direct output or inverted output for pulse output group 2 (pins PO11 to PO8). Bit 6 G2INV 0 1 Description Inverted output for pulse output group 2 (low-level output at pin for a 1 in PODRH) Direct output for pulse output group 2 (high-level output at pin for a 1 in PODRH) (Initial value) 613 Bit 5--Group 1 Inversion (G1INV): Selects direct output or inverted output for pulse output group 1 (pins PO7 to PO4). However, the H8S/2633 Series has no pins corresponding to pulse output group 1. Bit 5 G1INV 0 1 Description Inverted output for pulse output group 1 (low-level output at pin for a 1 in PODRL) Direct output for pulse output group 1 (high-level output at pin for a 1 in PODRL) (Initial value) Bit 4--Group 0 Inversion (G0INV): Selects direct output or inverted output for pulse output group 0 (pins PO3 to PO0). However, the H8S/2633 Series has no pins corresponding to pulse output group 0. Bit 4 G0INV 0 1 Description Inverted output for pulse output group 0 (low-level output at pin for a 1 in PODRL) Direct output for pulse output group 0 (high-level output at pin for a 1 in PODRL) (Initial value) Bit 3--Group 3 Non-Overlap (G3NOV): Selects normal or non-overlapping operation for pulse output group 3 (pins PO15 to PO12). Bit 3 G3NOV 0 1 Description Normal operation in pulse output group 3 (output values updated at compare match A in the selected TPU channel) (Initial value) Non-overlapping operation in pulse output group 3 (independent 1 and 0 output at compare match A or B in the selected TPU channel) Bit 2--Group 2 Non-Overlap (G2NOV): Selects normal or non-overlapping operation for pulse output group 2 (pins PO11 to PO8). Bit 2 G2NOV 0 1 Description Normal operation in pulse output group 2 (output values updated at compare match A in the selected TPU channel) (Initial value) Non-overlapping operation in pulse output group 2 (independent 1 and 0 output at compare match A or B in the selected TPU channel) 614 Bit 1--Group 1 Non-Overlap (G1NOV): Selects normal or non-overlapping operation for pulse output group 1 (pins PO7 to PO4). However, the H8S/2633 Series has no pins corresponding to pulse output group 1. Bit 1 G1NOV 0 1 Description Normal operation in pulse output group 1 (output values updated at compare match A in the selected TPU channel) (Initial value) Non-overlapping operation in pulse output group 1 (independent 1 and 0 output at compare match A or B in the selected TPU channel) Bit 0--Group 0 Non-Overlap (G0NOV): Selects normal or non-overlapping operation for pulse output group 0 (pins PO3 to PO0). However, the H8S/2633 Series has no pins corresponding to pulse output group 0. Bit 0 G0NOV 0 1 Description Normal operation in pulse output group 0 (output values updated at compare match A in the selected TPU channel) (Initial value) Non-overlapping operation in pulse output group 0 (independent 1 and 0 output at compare match A or B in the selected TPU channel) 615 12.2.7 Bit Port 1 Data Direction Register (P1DDR) : 7 6 5 4 3 2 1 0 P17DDR P16DDR P15DDR P14DDR P13DDR P12DDR P11DDR P10DDR Initial value : R/W : 0 W 0 W 0 W 0 W 0 W 0 W 0 W 0 W P1DDR is an 8-bit write-only register, the individual bits of which specify input or output for the pins of port 1. Port 1 is multiplexed with pins PO15 to PO8. Bits corresponding to pins used for PPG output must be set to 1. For further information about P1DDR, see sections 10A.2 and 10B.2, Port 1. 12.2.8 Bit Module Stop Control Register A (MSTPCRA) : 7 6 5 4 3 2 1 0 MSTPA7 MSTPA6 MSTPA5 MSTPA4 MSTPA3 MSTPA2 MSTPA1 MSTPA0 Initial value : R/W : 0 R/W 0 R/W 1 R/W 1 R/W 1 R/W 1 R/W 1 R/W 1 R/W MSTPCRA is an 8-bit readable/writable register that performs module stop mode control. When the MSTPA3 bit in MSTPCRA is set to 1, PPG operation stops at the end of the bus cycle and a transition is made to module stop mode. Registers cannot be read or written to in module stop mode. For details, see section 24.5, Module Stop Mode. MSTPCRA is initialized to H'3F by a power-on reset and in hardware standby mode. It is not initialized by a manual reset and in software standby mode. Bit 3--Module Stop (MSTPA3): Specifies the PPG module stop mode. Bit 3 MSTPA3 0 1 Description PPG module stop mode cleared PPG module stop mode set (Initial value) 616 12.3 12.3.1 Operation Overview PPG pulse output is enabled when the corresponding bits in P1DDR and NDER are set to 1. In this state the corresponding PODR contents are output. When the compare match event specified by PCR occurs, the corresponding NDR bit contents are transferred to PODR to update the output values. Figure 12-2 illustrates the PPG output operation and table 12-3 summarizes the PPG operating conditions. DDR Q NDER Q Output trigger signal C Q PODR D Pulse output pin Normal output/inverted output Q NDR D Internal data bus Figure 12-2 PPG Output Operation Table 12-3 PPG Operating Conditions NDER 0 DDR 0 1 1 0 1 Pin Function Generic input port Generic output port Generic input port (but the PODR bit is a read-only bit, and when compare match occurs, the NDR bit value is transferred to the PODR bit) PPG pulse output Sequential output of data of up to 16 bits is possible by writing new output data to NDR before the next compare match. For details of non-overlapping operation, see section 12.3.4, NonOverlapping Pulse Output. 617 12.3.2 Output Timing If pulse output is enabled, NDR contents are transferred to PODR and output when the specified compare match event occurs. Figure 12-3 shows the timing of these operations for the case of normal output in groups 2 and 3, triggered by compare match A. o TCNT N N+1 TGRA N Compare match A signal NDRH n PODRH m n PO8 to PO15 m n Figure 12-3 Timing of Transfer and Output of NDR Contents (Example) 618 12.3.3 Normal Pulse Output Sample Setup Procedure for Normal Pulse Output: Figure 12-4 shows a sample procedure for setting up normal pulse output. Normal PPG output Select TGR functions Set TGRA value TPU setup Set counting operation Select interrupt request Set initial output data Enable pulse output Port and PPG setup Select output trigger Set next pulse output data TPU setup Start counter Compare match? Yes Set next pulse output data [10] [3] [4] [5] [6] [7] [8] [1] [2] [1] Set TIOR to make TGRA an output compare register (with output disabled). [2] Set the PPG output trigger period. [3] Select the counter clock source with bits TPSC2 to TPSC0 in TCR. Select the counter clear source with bits CCLR1 and CCLR0. [4] Enable the TGIA interrupt in TIER. The DTC or DMAC can also be set up to transfer data to NDR. [5] Set the initial output values in PODR. [6] Set the DDR and NDER bits for the pins to be used for pulse output to 1. [7] Select the TPU compare match event to be used as the output trigger in PCR. [8] Set the next pulse output values in NDR. [9] Set the CST bit in TSTR to 1 to start the TCNT counter. [10] At each TGIA interrupt, set the next output values in NDR. [9] No Figure 12-4 Setup Procedure for Normal Pulse Output (Example) 619 Example of Normal Pulse Output (Example of Five-Phase Pulse Output): Figure 12-5 shows an example in which pulse output is used for cyclic five-phase pulse output. TCNT value TGRA TCNT Compare match H'0000 NDRH 80 C0 40 60 20 30 10 18 08 88 80 C0 40 Time PODRH 00 80 C0 40 60 20 30 10 18 08 88 80 C0 PO15 PO14 PO13 PO12 PO11 Figure 12-5 Normal Pulse Output Example (Five-Phase Pulse Output) [1] Set up the TPU channel to be used as the output trigger channel so that TGRA is an output compare register and the counter will be cleared by compare match A. Set the trigger period in TGRA and set the TGIEA bit in TIER to 1 to enable the compare match A (TGIA) interrupt. [2] Write H'F8 in P1DDR and NDERH, and set the G3CMS1, G3CMS0, G2CMS1, and G2CMS0 bits in PCR to select compare match in the TPU channel set up in the previous step to be the output trigger. Write output data H'80 in NDRH. [3] The timer counter in the TPU channel starts. When compare match A occurs, the NDRH contents are transferred to PODRH and output. The TGIA interrupt handling routine writes the next output data (H'C0) in NDRH. [4] Five-phase overlapping pulse output (one or two phases active at a time) can be obtained subsequently by writing H'40, H'60, H'20, H'30. H'10, H'18, H'08, H'88... at successive TGIA interrupts. If the DTC or DMAC is set for activation by this interrupt, pulse output can be obtained without imposing a load on the CPU. 620 12.3.4 Non-Overlapping Pulse Output Sample Setup Procedure for Non-Overlapping Pulse Output: Figure 12-6 shows a sample procedure for setting up non-overlapping pulse output. Non-overlapping PPG output Select TGR functions Set TGR values TPU setup Set counting operation Select interrupt request Set initial output data Enable pulse output Select output trigger Set non-overlapping groups Set next pulse output data TPU setup Start counter Compare match? Yes Set next pulse output data [11] [3] [4] [5] [6] [7] [8] [1] [2] [1] Set TIOR to make TGRA and TGRB an output compare registers (with output disabled). [2] Set the pulse output trigger period in TGRB and the non-overlap margin in TGRA. [3] Select the counter clock source with bits TPSC2 to TPSC0 in TCR. Select the counter clear source with bits CCLR1 and CCLR0. [4] Enable the TGIA interrupt in TIER. The DTC or DMAC can also be set up to transfer data to NDR. [5] Set the initial output values in PODR. [6] Set the DDR and NDER bits for the pins to be used for pulse output to 1. [7] Select the TPU compare match event to be used as the pulse output trigger in PCR. [8] In PMR, select the groups that will operate in non-overlap mode. [9] Set the next pulse output values in NDR. [10] Set the CST bit in TSTR to 1 to start the TCNT counter. [11] At each TGIA interrupt, set the next output values in NDR. PPG setup [9] [10] No Figure 12-6 Setup Procedure for Non-Overlapping Pulse Output (Example) 621 Example of Non-Overlapping Pulse Output (Example of Four-Phase Complementary NonOverlapping Output): Figure 12-7 shows an example in which pulse output is used for fourphase complementary non-overlapping pulse output. TCNT value TGRB TCNT TGRA H'0000 NDRH 95 65 59 56 95 65 Time PODRH 00 95 05 65 41 59 50 56 14 95 05 65 Non-overlap margin PO15 PO14 PO13 PO12 PO11 PO10 PO9 PO8 Figure 12-7 Non-Overlapping Pulse Output Example (Four-Phase Complementary) 622 [1] Set up the TPU channel to be used as the output trigger channel so that TGRA and TGRB are output compare registers. Set the trigger period in TGRB and the non-overlap margin in TGRA, and set the counter to be cleared by compare match B. Set the TGIEA bit in TIER to 1 to enable the TGIA interrupt. [2] Write H'FF in P1DDR and NDERH, and set the G3CMS1, G3CMS0, G2CMS1, and G2CMS0 bits in PCR to select compare match in the TPU channel set up in the previous step to be the output trigger. Set the G3NOV and G2NOV bits in PMR to 1 to select non-overlapping output. Write output data H'95 in NDRH. [3] The timer counter in the TPU channel starts. When a compare match with TGRB occurs, outputs change from 1 to 0. When a compare match with TGRA occurs, outputs change from 0 to 1 (the change from 0 to 1 is delayed by the value set in TGRA). The TGIA interrupt handling routine writes the next output data (H'65) in NDRH. [4] Four-phase complementary non-overlapping pulse output can be obtained subsequently by writing H'59, H'56, H'95... at successive TGIA interrupts. If the DTC or DMAC is set for activation by this interrupt, pulse output can be obtained without imposing a load on the CPU. 623 12.3.5 Inverted Pulse Output If the G3INV, G2INV, G1INV, and G0INV bits in PMR are cleared to 0, values that are the inverse of the PODR contents can be output. Figure 12-8 shows the outputs when G3INV and G2INV are cleared to 0, in addition to the settings of figure 12-7. TCNT value TGRB TCNT TGRA H'0000 NDRH 95 65 59 56 95 65 Time PODRL 00 95 05 65 41 59 50 56 14 95 05 65 PO15 PO14 PO13 PO12 PO11 PO10 PO9 PO8 Figure 12-8 Inverted Pulse Output (Example) 624 12.3.6 Pulse Output Triggered by Input Capture Pulse output can be triggered by TPU input capture as well as by compare match. If TGRA functions as an input capture register in the TPU channel selected by PCR, pulse output will be triggered by the input capture signal. Figure 12-9 shows the timing of this output. o TIOC pin Input capture signal NDR N PODR M N PO M N Figure 12-9 Pulse Output Triggered by Input Capture (Example) 625 12.4 Usage Notes Operation of Pulse Output Pins: Pins PO8 to PO15 are also used for other peripheral functions such as the TPU. When output by another peripheral function is enabled, the corresponding pins cannot be used for pulse output. Note, however, that data transfer from NDR bits to PODR bits takes place, regardless of the usage of the pins. Pin functions should be changed only under conditions in which the output trigger event will not occur. Note on Non-Overlapping Output: During non-overlapping operation, the transfer of NDR bit values to PODR bits takes place as follows. * NDR bits are always transferred to PODR bits at compare match A. * At compare match B, NDR bits are transferred only if their value is 0. Bits are not transferred if their value is 1. Figure 12-10 illustrates the non-overlapping pulse output operation. DDR NDER Q Compare match A Compare match B Pulse output pin C Q PODR D Q NDR D Internal data bus Normal output/inverted output Figure 12-10 Non-Overlapping Pulse Output 626 Therefore, 0 data can be transferred ahead of 1 data by making compare match B occur before compare match A. The NDR contents should not be altered during the interval from compare match B to compare match A (the non-overlap margin). This can be accomplished by having the TGIA interrupt handling routine write the next data in NDR, or by having the TGIA interrupt activate the DTC or DMAC. Note, however, that the next data must be written before the next compare match B occurs. Figure 12-11 shows the timing of this operation. Compare match A Compare match B Write to NDR NDR Write to NDR PODR 0 output 0/1 output 0 output 0/1 output Write to NDR here Write to NDR Do not write here to NDR here Do not write to NDR here Figure 12-11 Non-Overlapping Operation and NDR Write Timing 627 628 Section 13 8-Bit Timers (TMR) (This function is not available in the H8S/2695) 13.1 Overview The H8S/2633 Series includes an 8-bit timer module with four channels (TMR0, TMR1, TMR2, and TMR3). Each channel has an 8-bit counter (TCNT) and two time constant registers (TCORA and TCORB) that are constantly compared with the TCNT value to detect compare match events. The 8-bit timer module can thus be used for a variety of functions, including pulse output with an arbitrary duty cycle. 13.1.1 Features The features of the 8-bit timer module are listed below. * Selection of four clock sources The counters can be driven by one of three internal clock signals (o/8, o/64, or o/8192) or an external clock input (enabling use as an external event counter) * Selection of three ways to clear the counters The counters can be cleared on compare match A or B, or by an external reset signal * Timer output control by a combination of two compare match signals The timer output signal in each channel is controlled by a combination of two independent compare match signals, enabling the timer to generate output waveforms with an arbitrary duty cycle or PWM output * Provision for cascading of two channels Operation as a 16-bit timer is possible, using channel 0 (channel 2) for the upper 8 bits and channel 1 (channel 3) for the lower 8 bits (16-bit count mode) Channel 1 (channel 3) can be used to count channel 0 (channel 2) compare matches (compare match count mode) * Three independent interrupts Compare match A and B and overflow interrupts can be requested independently * A/D converter conversion start trigger can be generated Channel 0 compare match A signal can be used as an A/D converter conversion start trigger * Module stop mode can be set As the initial setting, 8-bit timer operation is halted. Register access is enabled by exiting module stop mode 629 13.1.2 Block Diagram Figure 13-1 shows a block diagram of the 8-bit timer module (TMR0, TMR1). External clock source TMCI01 TMCI23 Internal clock sources o/8 o/64 o/8192 Clock select Clock 1 Clock 0 TCORA0 Compare match A1 Compare match A0 Comparator A0 Overflow 1 Overflow 0 Clear 0 Compare match B1 Compare match B0 Comparator B0 Internal bus Clear 1 Comparator B1 TCORA1 Comparator A1 TMO0 TMRI01 TMRI23 TCNT0 TCNT1 TMO1 Control logic TCORB0 A/D conversion start request signal TCORB1 TCSR0 TCSR1 TCR0 CMIA0 CMIB0 OVI0 CMIA1 CMIB1 OVI1 Interrupt signals TCR1 Figure 13-1 Block Diagram of 8-Bit Timer 630 13.1.3 Pin Configuration Table 13-1 summarizes the input and output pins of the 8-bit timer. Table 13-1 Pin Configuration Channel 0 Name Timer output pin 0 Symbol TMO0 I/O Output Input Input Output Input Input Output Input Input Output Input Input Function Outputs at compare match Inputs external clock for counter Inputs external reset to counter Outputs at compare match Inputs external clock for counter Inputs external reset to counter Outputs at compare match Inputs external clock for counter Inputs external reset to counter Outputs at compare match Inputs external clock for counter Inputs external reset to counter Timer clock input pin 01 TMCI01 Timer reset input pin 01 TMRI01 1 Timer output pin 1 TMO1 Timer clock input pin 23 TMCI23 Timer reset input pin 23 TMRI23 2 Timer output pin 2 TMO2 Timer clock input pin 23 TMCI23 Timer reset input pin 23 TMRI23 3 Timer output pin 3 TMO3 Timer clock input pin 01 TMCI01 Timer reset input pin 01 TMRI01 631 13.1.4 Register Configuration Table 13-2 summarizes the registers of the 8-bit timer module. Table 13-2 8-Bit Timer Registers Channel 0 Name Timer control register 0 Abbreviation TCR0 R/W R/W R/(W)* R/W R/W R/W R/W R/(W)* R/W R/W R/W R/W R/(W)* R/W R/W R/W R/W R/(W)* R/W R/W R/W R/W 2 2 2 2 Initial value H'00 H'00 H'FF H'FF H'00 H'00 H'10 H'FF H'FF H'00 H'00 H'00 H'FF H'FF H'00 H'00 H'10 H'FF H'FF H'00 H'3F Address* 1 H'FF68 H'FF6A H'FF6C H'FF6E H'FF70 H'FF69 H'FF6B H'FF6D H'FF6F H'FF71 H'FDC0 H'FDC2 H'FDC4 H'FDC6 H'FDC8 H'FDC1 H'FDC3 H'FDC5 H'FDC7 H'FDC9 H'FDE8 Timer control/status register 0 TCSR0 Time constant register A0 Time constant register B0 Timer counter 0 1 Timer control register 1 TCORA0 TCORB0 TCNT0 TCR1 Timer control/status register 1 TCSR1 Time constant register A1 Time constant register B1 Timer counter 1 2 Timer control register 2 TCORA1 TCORB1 TCNT1 TCR2 Timer control/status register 2 TCSR2 Time constant register A2 Time constant register B2 Timer counter 2 3 Timer control register 3 TCORA2 TCORB2 TCNT2 TCR3 Timer control/status register 3 TCSR3 Time constant register A3 Time constant register B3 Timer counter 3 All TCORA3 TCORB3 TCNT3 Module stop control register A MSTPCRA Notes: *1 Lower 16 bits of the address *2 Only 0 can be written to bits 7 to 5, to clear these flags. Each pair of registers for channel 0 (channel 2) and channel 1 (channel 3) is a 16-bit register with the upper 8 bits for channel 0 (channel 2) and the lower 8 bits for channel 1 (channel 3), so they can be accessed together by word transfer instruction. 632 13.2 13.2.1 Register Descriptions Timer Counters 0 to 3 (TCNT0 to TCNT3) TCNT0 (TCNT2) TCNT1 (TCNT3) 9 0 8 0 7 0 6 0 5 0 4 0 3 0 2 0 1 0 0 0 Bit : 15 0 14 0 13 0 12 0 11 0 10 0 Initial value: R/W : R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W TCNT0 to TCNT3 are 8-bit readable/writable up-counters that increment on pulses generated from an internal or external clock source. This clock source is selected by clock select bits CKS2 to CKS0 of TCR. The CPU can read or write to TCNT0 to TCNT3 at all times. TCNT0 and TCNT1 (TCNT2 and TCNT3) comprise a single 16-bit register, so they can be accessed together by word transfer instruction. TCNT0 and TCNT1 (TCNT2 and TCNT3) can be cleared by an external reset input or by a compare match signal. Which signal is to be used for clearing is selected by clock clear bits CCLR1 and CCLR0 of TCR. When a timer counter overflows from H'FF to H'00, OVF in TCSR is set to 1. TCNT0 and TCNT1 are each initialized to H'00 by a reset and in hardware standby mode. 13.2.2 Time Constant Registers A0 to A3 (TCORA0 to TCORA3) TCORA0 (TCORA2) Bit : 15 1 14 1 13 1 12 1 11 1 10 1 9 1 8 1 7 1 6 1 TCORA1 (TCORA3) 5 1 4 1 3 1 2 1 1 1 0 1 Initial value: R/W : R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W TCORA0 to TCORA3 are 8-bit readable/writable registers. TCORA0 and TCORA1 (TCORA2 and TCORA3) comprise a single 16-bit register so they can be accessed together by word transfer instruction. TCORA is continually compared with the value in TCNT. When a match is detected, the corresponding CMFA flag of TCSR is set. Note, however, that comparison is disabled during the T2 state of a TCOR write cycle. 633 The timer output can be freely controlled by these compare match signals and the settings of bits OS1 and OS0 of TCSR. TCORA0 and TCORA1 are each initialized to H'FF by a reset and in hardware standby mode. 13.2.3 Time Constant Registers B0 to B3 (TCORB0 to TCORB3) TCORB0 (TCORB2) Bit : 15 1 14 1 13 1 12 1 11 1 10 1 9 1 8 1 7 1 6 1 TCORB1 (TCORB3) 5 1 4 1 3 1 2 1 1 1 0 1 Initial value: R/W : R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W TCORB0 to TCORB3 are 8-bit readable/writable registers. TCORB0 and TCORB1 (TCORB2 and TCORB3) comprise a single 16-bit register so they can be accessed together by word transfer instruction. TCORB is continually compared with the value in TCNT. When a match is detected, the corresponding CMFB flag of TCSR is set. Note, however, that comparison is disabled during the T2 state of a TCOR write cycle. The timer output can be freely controlled by these compare match signals and the settings of output select bits OS3 and OS2 of TCSR. TCORB0 and TCORB1 are each initialized to H'FF by a reset and in hardware standby mode. 13.2.4 Bit Timer Control Registers 0 to 3 (TCR0 to TCR3) : 7 CMIEB 0 R/W 6 CMIEA 0 R/W 5 OVIE 0 R/W 4 CCLR1 0 R/W 3 CCLR0 0 R/W 2 CKS2 0 R/W 1 CKS1 0 R/W 0 CKS0 0 R/W Initial value: R/W : TCR0 to TCR3 are 8-bit readable/writable registers that select the input clock source and the time at which TCNT is cleared, and enable interrupts. TCR0 and TCR1 are each initialized to H'00 by a reset and in hardware standby mode. For details of this timing, see section 13.3, Operation. 634 Bit 7--Compare Match Interrupt Enable B (CMIEB): Selects whether CMFB interrupt requests (CMIB) are enabled or disabled when the CMFB flag of TCSR is set to 1. Bit 7 CMIEB 0 1 Description CMFB interrupt requests (CMIB) are disabled CMFB interrupt requests (CMIB) are enabled (Initial value) Bit 6--Compare Match Interrupt Enable A (CMIEA): Selects whether CMFA interrupt requests (CMIA) are enabled or disabled when the CMFA flag of TCSR is set to 1. Bit 6 CMIEA 0 1 Description CMFA interrupt requests (CMIA) are disabled CMFA interrupt requests (CMIA) are enabled (Initial value) Bit 5--Timer Overflow Interrupt Enable (OVIE): Selects whether OVF interrupt requests (OVI) are enabled or disabled when the OVF flag of TCSR is set to 1. Bit 5 OVIE 0 1 Description OVF interrupt requests (OVI) are disabled OVF interrupt requests (OVI) are enabled (Initial value) Bits 4 and 3--Counter Clear 1 and 0 (CCLR1 and CCLR0): These bits select the method by which TCNT is cleared: by compare match A or B, or by an external reset input. Bit 4 CCLR1 0 Bit 3 CCLR0 0 1 1 0 1 Description Clear is disabled Clear by compare match A Clear by compare match B Clear by rising edge of external reset input (Initial value) 635 Bits 2 to 0--Clock Select 2 to 0 (CKS2 to CKS0): These bits select whether the clock input to TCNT is an internal or external clock. Three internal clocks can be selected, all divided from the system clock (o): o/8, o/64, and o/8192. The falling edge of the selected internal clock triggers the count. When use of an external clock is selected, three types of count can be selected: at the rising edge, the falling edge, and both rising and falling edges. Some functions differ between channel 0 and channel 1. Bit 2 CKS2 0 Bit 1 CKS1 0 Bit 0 CKS0 0 1 1 0 1 1 0 0 Description Clock input disabled Internal clock, counted at falling edge of o/8 Internal clock, counted at falling edge of o/64 Internal clock, counted at falling edge of o/8192 For channel 0: count at TCNT1 overflow signal* For channel 1: count at TCNT0 compare match A* For channel 2: count at TCNT3 overflow signal* For channel 3: count at TCNT2 compare match A* 1 1 0 1 External clock, counted at rising edge External clock, counted at falling edge External clock, counted at both rising and falling edges (Initial value) Note: * If the count input of channel 0 (channel 2) is the TCNT1 (TCNT3) overflow signal and that of channel 1 (channel 3) is the TCNT0 (TCNT2) compare match signal, no incrementing clock is generated. Do not use this setting. 636 13.2.5 Timer Control/Status Registers 0 to 3 (TCSR0 to TCSR3) TCSR0 Bit : 7 CMFB 0 R/(W)* 6 CMFA 0 R/(W)* 5 OVF 0 R/(W)* 4 ADTE 0 R/W 3 OS3 0 R/W 2 OS2 0 R/W 1 OS1 0 R/W 0 OS0 0 R/W Initial value: R/W : TCSR1, TCSR3 Bit : 7 CMFB 0 R/(W)* 6 CMFA 0 R/(W)* 5 OVF 0 R/(W)* 4 -- 1 -- 3 OS3 0 R/W 2 OS2 0 R/W 1 OS1 0 R/W 0 OS0 0 R/W Initial value : R/W : TCSR2 Bit : 7 CMFB 0 R/(W)* 6 CMFA 0 R/(W)* 5 OVF 0 R/(W)* 4 -- 0 R/W 3 OS3 0 R/W 2 OS2 0 R/W 1 OS1 0 R/W 0 OS0 0 R/W Initial value : R/W : Note: * Only 0 can be written to bits 7 to 5, to clear these flags. TCSR0 to TCSR3 are 8-bit registers that display compare match and timer overflow statuses, and control compare match output. TCSR0 and TCSR2 are initialized to H'00, and TCSR1 and TCSR3 to H'10, by a reset and in hardware standby mode. 637 Bit 7--Compare Match Flag B (CMFB): Status flag indicating whether the values of TCNT and TCORB match. Bit 7 CMFB 0 Description [Clearing conditions] * * 1 Cleared by reading CMFB when CMFB = 1, then writing 0 to CMFB When DTC is activated by CMIB interrupt while DISEL bit of MRB in DTC is 0 (Initial value) [Setting condition] Set when TCNT matches TCORB Bit 6--Compare Match Flag A (CMFA): Status flag indicating whether the values of TCNT and TCORA match. Bit 6 CMFA 0 Description [Clearing conditions] * * 1 Cleared by reading CMFA when CMFA = 1, then writing 0 to CMFA When DTC is activated by CMIA interrupt while DISEL bit of MRB in DTC is 0 (Initial value) [Setting condition] Set when TCNT matches TCORA Bit 5--Timer Overflow Flag (OVF): Status flag indicating that TCNT has overflowed (changed from H'FF to H'00). Bit 5 OVF 0 Description [Clearing condition] Cleared by reading OVF when OVF = 1, then writing 0 to OVF 1 [Setting condition] Set when TCNT overflows from H'FF to H'00 (Initial value) 638 Bit 4--A/D Trigger Enable (ADTE) (TCSR0 Only): Selects enabling or disabling of A/D converter start requests by compare-match A. TCSR1 to TCSR3 are reserved bits. When TCSR1 and TCSR3 are read, always 1 is read off. Write is disenabled. TCSR2 is readable/writable. Bit 4 ADTE 0 1 Description A/D converter start requests by compare match A are disabled A/D converter start requests by compare match A are enabled (Initial value) Bits 3 to 0--Output Select 3 to 0 (OS3 to OS0): These bits specify how the timer output level is to be changed by a compare match of TCOR and TCNT. Bits OS3 and OS2 select the effect of compare match B on the output level, bits OS1 and OS0 select the effect of compare match A on the output level, and both of them can be controlled independently. Note, however, that priorities are set such that: toggle output > 1 output > 0 output. If compare matches occur simultaneously, the output changes according to the compare match with the higher priority. Timer output is disabled when bits OS3 to OS0 are all 0. After a reset, the timer output is 0 until the first compare match event occurs. Bit 3 OS3 0 Bit 2 OS2 0 1 1 0 1 Description No change when compare match B occurs 0 is output when compare match B occurs 1 is output when compare match B occurs Output is inverted when compare match B occurs (toggle output) (Initial value) Bit 1 OS1 0 Bit 0 OS0 0 1 Description No change when compare match A occurs 0 is output when compare match A occurs 1 is output when compare match A occurs Output is inverted when compare match A occurs (toggle output) (Initial value) 1 0 1 639 13.2.6 Bit Module Stop Control Register A (MSTPCRA) : 7 0 R/W 6 0 R/W 5 1 R/W 4 1 R/W 3 1 R/W 2 1 R/W 1 1 R/W 0 1 R/W MSTPA7 MSTPA6 MSTPA5 MSTPA4 MSTPA3 MSTPA2 MSTPA1 MSTPA0 Initial value : R/W : MSTPCRA is an 8-bit readable/writable register that performs module stop mode control. When the MSTPA4 and MSTPA0 bits in MSTPCR is set to 1, the 8-bit timer operation stops at the end of the bus cycle and a transition is made to module stop mode. For details, see section 24.5, Module Stop Mode. MSTPCRA is initialized to H'3F by a power-on reset and in hardware standby mode. It is not initialized by a manual reset and in software standby mode. Bit 4--Module Stop (MSTPA4): Specifies the TMR0 and TMR1 module stop mode. Bit 4 MSTPA4 0 1 Description TMR0, TMR1 module stop mode cleared TMR0, TMR1 module stop mode set (Initial value) Bit 0--Module Stop (MSTPA0): Specifies the TMR2 and TMR3 module stop mode. Bit 0 MSTPA0 0 1 Description TMR2, TMR3 module stop mode cleared TMR2, TMR3 module stop mode set (Initial value) 640 13.3 13.3.1 Operation TCNT Incrementation Timing TCNT is incremented by input clock pulses (either internal or external). Internal Clock: Three different internal clock signals (o/8, o/64, or o/8192) divided from the system clock (o) can be selected, by setting bits CKS2 to CKS0 in TCR. Figure 13-2 shows the count timing. o Internal clock Clock input to TCNT TCNT N-1 N N+1 Figure 13-2 Count Timing for Internal Clock Input External Clock: Three incrementation methods can be selected by setting bits CKS2 to CKS0 in TCR: at the rising edge, the falling edge, and both rising and falling edges. Note that the external clock pulse width must be at least 1.5 states for incrementation at a single edge, and at least 2.5 states for incrementation at both edges. The counter will not increment correctly if the pulse width is less than these values. Figure 13-3 shows the timing of incrementation at both edges of an external clock signal. 641 o External clock input Clock input to TCNT TCNT N-1 N N+1 Figure 13-3 Count Timing for External Clock Input 13.3.2 Compare Match Timing Setting of Compare Match Flags A and B (CMFA, CMFB): The CMFA and CMFB flags in TCSR are set to 1 by a compare match signal generated when the TCOR and TCNT values match. The compare match signal is generated at the last state in which the match is true, just before the timer counter is updated. Therefore, when TCOR and TCNT match, the compare match signal is not generated until the next incrementation clock input. Figure 13-4 shows this timing. o TCNT N N+1 TCOR Compare match signal N CMF Figure 13-4 Timing of CMF Setting 642 Timer Output Timing: When compare match A or B occurs, the timer output changes a specified by bits OS3 to OS0 in TCSR. Depending on these bits, the output can remain the same, change to 0, change to 1, or toggle. Figure 13-5 shows the timing when the output is set to toggle at compare match A. o Compare match A signal Timer output pin Figure 13-5 Timing of Timer Output Timing of Compare Match Clear: The timer counter is cleared when compare match A or B occurs, depending on the setting of the CCLR1 and CCLR0 bits in TCR. Figure 13-6 shows the timing of this operation. o Compare match signal TCNT N H'00 Figure 13-6 Timing of Compare Match Clear 643 13.3.3 Timing of External RESET on TCNT TCNT is cleared at the rising edge of an external reset input, depending on the settings of the CCLR1 and CCLR0 bits in TCR. The clear pulse width must be at least 1.5 states. Figure 13-7 shows the timing of this operation. o External reset input pin Clear signal TCNT N-1 N H'00 Figure 13-7 Timing of External Reset 13.3.4 Timing of Overflow Flag (OVF) Setting The OVF in TCSR is set to 1 when the timer count overflows (changes from H'FF to H'00). Figure 13-8 shows the timing of this operation. o TCNT H'FF H'00 Overflow signal OVF Figure 13-8 Timing of OVF Setting 644 13.3.5 Operation with Cascaded Connection If bits CKS2 to CKS0 in either TCR0 or TCR1 are set to B'100, the 8-bit timers of the two channels are cascaded. With this configuration, a single 16-bit timer could be used (16-bit timer mode) or compare matches of the 8-bit timer channel 0 (channel 2) could be counted by the timer of channel 1 (channel 3) (compare match counter mode). In this case, the timer operates as below. 16-Bit Counter Mode: When bits CKS2 to CKS0 in TCR0 are set to B'100, the timer functions as a single 16-bit timer with channel 0 (channel 2) occupying the upper 8 bits and channel 1 (channel 3) occupying the lower 8 bits. * Setting of compare match flags The CMF flag in TCSR0 and TCSR2 is set to 1 when a 16-bit compare match event occurs The CMF flag in TCSR1 and TCSR3 is set to 1 when a lower 8-bit compare match event occurs * Counter clear specification If the CCLR1 and CCLR0 bits in TCR0 (TCR2) have been set for counter clear at compare match, the 16-bit counter (TCNT0 and TCNT1 (TCNT2 and TCNT3) together) is cleared when a 16-bit compare match event occurs. The 16-bit counter (TCNT0 and TCNT1 (TCNT2 and TCNT3) together) is cleared even if counter clear by the TMRI01 (TMRI23) pin has also been set The settings of the CCLR1 and CCLR0 bits in TCR1 and TCR3 are ignored. The lower 8 bits cannot be cleared independently * Pin output Control of output from the TMO0 (TMO2) pin by bits OS3 to OS0 in TCSR0 (TCSR2) is in accordance with the 16-bit compare match conditions Control of output from the TMO1 (TMO3) pin by bits OS3 to OS0 in TCSR1 (TCSR3) is in accordance with the lower 8-bit compare match conditions Compare Match Counter Mode: When bits CKS2 to CKS0 in TCR1 (TCR3) are B'100, TCNT1 (TCNT3) counts compare match A's for channel 0 (channel 2). Channels 0 to 3 are controlled independently. Conditions such as setting of the CMF flag, generation of interrupts, output from the TMO pin, and counter clear are in accordance with the settings for each channel. Note on Usage: If the 16-bit counter mode and compare match counter mode are set simultaneously, the input clock pulses for TCNT0 and TCNT1 (TCNT2 and TCNT3) are not generated and thus the counters will stop operating. Software should therefore avoid using both these modes. 645 13.4 13.4.1 Interrupts Interrupt Sources and DTC Activation (The H8S/2695 does not have a DTC function or an 8-bit timer) There are three 8-bit timer interrupt sources: CMIA, CMIB, and OVI. Their relative priorities are shown in table 13-3. Each interrupt source is set as enabled or disabled by the corresponding interrupt enable bit in TCR, and independent interrupt requests are sent for each to the interrupt controller. It is also possible to activate the DTC by means of CMIA and CMIB interrupts. Table 13-3 8-Bit Timer Interrupt Sources Channel 0 Interrupt Source CMIA0 CMIB0 OVI0 1 CMIA1 CMIB1 OVI1 2 CMIA2 CMIB2 OVI2 3 CMIA3 CMIB3 OVI3 Description Interrupt by CMFA Interrupt by CMFB Interrupt by OVF Interrupt by CMFA Interrupt by CMFB Interrupt by OVF Interrupt by CMFA Interrupt by CMFB Interrupt by OVF Interrupt by CMFA Interrupt by CMFB Interrupt by OVF DTC Activation Possible Possible Not possible Possible Possible Not possible Possible Possible Not possible Possible Possible Not possible Low Priority High Note: This table shows the initial state immediately after a reset. The relative channel priorities can be changed by the interrupt controller. 13.4.2 A/D Converter Activation The A/D converter can be activated only by channel 0 compare match A. If the ADTE bit in TCSR0 is set to 1 when the CMFA flag is set to 1 by the occurrence of channel 0 compare match A, a request to start A/D conversion is sent to the A/D converter. If the 8-bit timer conversion start trigger has been selected on the A/D converter side at this time, A/D conversion is started. 646 13.5 Sample Application In the example below, the 8-bit timer is used to generate a pulse output with a selected duty cycle, as shown in figure 13-9. The control bits are set as follows: [1] In TCR, bit CCLR1 is cleared to 0 and bit CCLR0 is set to 1 so that TCNT is cleared by comparing and matching TCORA. [2] In TCSR, bits OS3 to OS0 are set to B'0110, causing the output to change to 1 at a TCORA compare match and to 0 at a TCORB compare match. With these settings, the 8-bit timer provides output of pulses at a rate determined by TCORA with a pulse width determined by TCORB. No software intervention is required. TCNT H'FF TCORA TCORB H'00 Counter clear TMO Figure 13-9 Example of Pulse Output 647 13.6 Usage Notes Application programmers should note that the following kinds of contention can occur in the 8-bit timer. 13.6.1 Contention between TCNT Write and Clear If a timer counter clock pulse is generated during the T2 state of a TCNT write cycle, the clear takes priority, so that the counter is cleared and the write is not performed. Figure 13-10 shows this operation. TCNT write cycle by CPU T1 T2 o Address TCNT address Internal write signal Counter clear signal TCNT N H'00 Figure 13-10 Contention between TCNT Write and Clear 648 13.6.2 Contention between TCNT Write and Increment If a timer counter clock pulse is generated during the T2 state of a TCNT write cycle, the write takes priority and the counter is not incremented. Figure 13-11 shows this operation. TCNT write cycle by CPU T1 T2 o Address TCNT address Internal write signal TCNT input clock TCNT N M Counter write data Figure 13-11 Contention between TCNT Write and Increment 649 13.6.3 Contention between TCOR Write and Compare Match During the T2 state of a TCOR write cycle, the TCOR write has priority and the compare match signal is disabled even if a compare match event occurs. Figure 13-12 shows this operation. TCOR write cycle by CPU T1 T2 o Address TCOR address Internal write signal TCNT N N+1 TCOR N M TCOR write data Compare match signal Disabled Figure 13-12 Contention between TCOR Write and Compare Match 650 13.6.4 Contention between Compare Matches A and B If compare match events A and B occur at the same time, the 8-bit timer operates in accordance with the priorities for the output statuses set for compare match A and compare match B, as shown in table 13-4. Table 13-4 Timer Output Priorities Output Setting Toggle output 1 output 0 output No change Low Priority High 13.6.5 Switching of Internal Clocks and TCNT Operation TCNT may increment erroneously when the internal clock is switched over. Table 13-5 shows the relationship between the timing at which the internal clock is switched (by writing to the CKS1 and CKS0 bits) and the TCNT operation. When the TCNT clock is generated from an internal clock, the falling edge of the internal clock pulse is detected. If clock switching causes a change from high to low level, as shown in case 3 in table 13-5, a TCNT clock pulse is generated on the assumption that the switchover is a falling edge. This increments TCNT. The erroneous incrementation can also happen when switching between internal and external clocks. 651 Table 13-5 Switching of Internal Clock and TCNT Operation Timing of Switchover by Means of CKS1 and CKS0 Bits TCNT Clock Operation Switching from low to low* 1 Clock before switchover Clock after switchover TCNT clock No. 1 TCNT N CKS bit write N+1 2 Switching from low to high* 2 Clock before switchover Clock after switchover TCNT clock TCNT N N+1 N+2 CKS bit write 3 Switching from high to low* 3 Clock before switchover Clock after switchover *4 TCNT clock TCNT N N+1 CKS bit write N+2 652 No. 4 Timing of Switchover by Means of CKS1 and CKS0 Bits TCNT Clock Operation Switching from high to high Clock before switchover Clock after switchover TCNT clock TCNT N N+1 N+2 CKS bit write Notes: *1 *2 *3 *4 Includes switching from low to stop, and from stop to low. Includes switching from stop to high. Includes switching from high to stop. Generated on the assumption that the switchover is a falling edge; TCNT is incremented. 13.6.6 Interrupts and Module Stop Mode If module stop mode is entered when an interrupt has been requested, it will not be possible to clear the CPU interrupt source or DMAC and DTC activation source. Interrupts should therefore be disabled before entering module stop mode. 653 654 Section 14 14-Bit PWM D/A (This function is not available in the H8S/2695) 14.1 Overview The H8S/2633 Series has an on-chip 14-bit pulse-width modulator (PWM) with four output channels. Each channel can be connected to an external low-pass filter to operate as a 14-bit D/A converter. Both channels share the same counter (DACNT) and control register (DACR). 14.1.1 Features The features of the 14-bit PWM D/A are listed below. * The pulse is subdivided into multiple base cycles to reduce ripple. * Two resolution settings and two base cycle settings are available The resolution can be set equal to one or two system clock cycles. The base cycle can be set equal to T x 64 or T x 256, where T is the resolution. * Four operating rates The two resolution settings and two base cycle settings combine to give a selection of four operating rates. 655 14.1.2 Block Diagram Figure 14-1 shows a block diagram of the PWM D/A module. Internal clock o o/2 Clock selection Clock Basic cycle compare-match A PWM0 PWM1 Fine-adjustment pulse addition A Basic cycle compare-match B Fine-adjustment pulse addition B Control logic Comparator B DADRB Comparator A DADRA Bus interface Internal data bus Basic cycle overflow DACNT DACR Module data bus Legend: DACR: DADRA: DADRB: DACNT: PWM D/A control register ( 6 bits) PWM D/A data register A (15 bits) PWM D/A data register B (15 bits) PWM D/A counter (14 bits) Figure 14-1 PWM D/A Block Diagram 656 14.1.3 Pin Configuration Table 14-1 lists the pins used by the PWM D/A module. Table 14-1 Input and Output Pins Name PWM output pin 0 PWM output pin 1 PWM output pin 2 PWM output pin 3 Abbr. PWM0 PWM1 PWM2 PWM3 I/O Output Output Output Output Function PWM output, channel 0A PWM output, channel 0B PWM output, channel 1A PWM output, channel 1B 14.1.4 Register Configuration Table 14-2 lists the registers of the PWM D/A module. Table 14-2 Register Configuration Channel 0 Name PWM D/A control register 0 PWM D/A data register AH0 PWM D/A data register AL0 PWM D/A data register BH0 PWM D/A data register BL0 PWM D/A counter H0 PWM D/A counter L0 1 PWM D/A control register 1 PWM D/A data register AH1 PWM D/A data register AL1 PWM D/A data register BH1 PWM D/A data register BL1 PWM D/A counter H1 PWM D/A counter L1 All Module stop control register B Abbreviation DACR0 DADRAH0 DADRAL0 DADRBH0 DADRBL0 DACNTH0 DACNTL0 DACR1 DADRAH1 DADRAL1 DADRBH1 DADRBL1 DACNTH1 DACNTL1 MSTPCRB R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W Initial value Address* 1 H'30 H'FF H'FF H'FF H'FF H'00 H'03 H'30 H'FF H'FF H'FF H'FF H'00 H'03 H'FF H'FDB8* 2 H'FDB8* 2 H'FDB9* 2 H'FDBA* 2 H'FDBB* 2 H'FDBA* 2 H'FDBB* 2 H'FDBC* 2 H'FDBC* 2 H'FDBD* 2 H'FDBE* 2 H'FDBF* 2 H'FDBE* 2 H'FDBF* 2 H'FDE9 Notes: *1 Lower 16 bits of the address. *2 The same addresses are shared by DADRA and DACR, and by DADRB and DACNT. Switching is performed by the REGS bit in DACNT or DADRB. 657 14.2 14.2.1 Register Descriptions PWM D/A Counter (DACNT) DACNTH DACNTL 10 2 9 1 8 0 7 8 6 9 5 10 4 11 3 12 2 13 1 -- 0 -- REGS Bit (CPU) BIT (Counter) Initial value R/W : 15 7 14 6 13 5 12 4 11 3 : 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 R/W : R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W -- DACNT is a 14-bit readable/writable up-counter that increments on an input clock pulse. The input clock is selected by the clock select bit (CKS) in DACR. The CPU can read and write the DACNT value, but since DACNT is a 16-bit register, data transfers between it and the CPU are performed using a temporary register (TEMP). See section 14.3, Bus Master Interface, for details. DACNT functions as the time base for both PWM D/A channels. When a channel operates with 14-bit precision, it uses all DACNT bits. When a channel operates with 12-bit precision, it uses the lower 12 (counter) bits and ignores the upper two (counter) bits. DACNT is initialized to H'0003 by a reset, in the standby modes, watch mode, subactive mode, subsleep mode, and module stop mode, and by the PWME bit. Bit 1 of DACNTL (CPU) is not used, and is always read as 1. DACNTL Bit 0--Register Select (REGS): DADRA and DACR, and DADRB and DACNT, are located at the same addresses. The REGS bit specifies which registers can be accessed. The REGS bit can be accessed regardless of whether DADRB or DACNT is selected. Bit 0 REGS 0 1 Description DADRA and DADRB can be accessed DACR and DACNT can be accessed (Initial value) 658 14.2.2 PWM D/A Data Registers A and B (DADRA and DADRB) DADRH DADRL 10 8 9 7 8 6 7 5 6 4 5 3 4 2 3 1 2 0 1 -- 0 -- -- 1 -- Bit (CPU) Bit (Data) DADRA Initial value : R/W DADRB Initial value : R/W 15 13 14 12 13 11 12 10 11 9 DA13 DA12 DA11 DA10 DA9 DA8 DA7 DA6 DA5 DA4 DA3 DA2 DA1 DA0 CFS 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 : R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W DA13 DA12 DA11 DA10 DA9 DA8 DA7 DA6 DA5 DA4 DA3 DA2 DA1 DA0 CFS REGS 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 : R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W There are two 16-bit readable/writable PWM D/A data registers: DADRA and DADRB. DADRA corresponds to PWM D/A channel A, and DADRB to PWM D/A channel B. The CPU can read and write the PWM D/A data register values, but since DADRA and DADRB are 16-bit registers, data transfers between them and the CPU are performed using a temporary register (TEMP). See section 14.3, Bus Master Interface, for details. The least significant (CPU) bit of DADRA is not used and is always read as 1. DADR is initialized to H'FFFF by a reset, and in the standby modes, watch mode, subactive mode, subsleep mode, and module stop mode. Bits 15 to 3--PWM D/A Data 13 to 0 (DA13 to DA0): The digital value to be converted to an analog value is set in the upper 14 bits of the PWM D/A data register. In each base cycle, the DACNT value is continually compared with these upper 14 bits to determine the duty cycle of the output waveform, and to decide whether to output a fineadjustment pulse equal in width to the resolution. To enable this operation, the data register must be set within a range that depends on the carrier frequency select bit (CFS). If the DADR value is outside this range, the PWM output is held constant. A channel can be operated with 12-bit precision by keeping the two lowest data bits (DA0 and DA1) cleared to 0 and writing the data to be converted in the upper 12 bits. The two lowest data bits correspond to the two highest counter (DACNT) bits. 659 Bit 1--Carrier Frequency Select (CFS) Bit 1 CFS 0 1 Description Base cycle = resolution (T) x 64 DADR range = H'0401 to H'FFFD Base cycle = resolution (T) x 256 DADR range = H'0103 to H'FFFF (Initial value) Bit 0--Reserved: This bit cannot be modified and is always read as 1. DADRB Bit 0--Register Select (REGS): DADRA and DACR, and DADRB and DACNT, are located at the same addresses. The REGS bit specifies which registers can be accessed. The REGS bit can be accessed regardless of whether DADRB or DACNT is selected. Bit 0 REGS 0 1 Description DADRA and DADRB can be accessed DACR and DACNT can be accessed (Initial value) 14.2.3 Bit PWM D/A Control Register (DACR) : 7 TEST 0 R/W 6 PWME 0 R/W 5 -- 1 -- 4 -- 1 -- 3 OEB 0 R/W 2 OEA 0 R/W 1 OS 0 R/W 0 CKS 0 R/W Initial value : R/W : DACR is an 8-bit readable/writable register that selects test mode, enables the PWM outputs, and selects the output phase and operating speed. DACR is initialized to H'30 by a reset, and in the standby modes, watch mode, subactive mode, subsleep mode, and module stop mode. 660 Bit 7--Test Mode (TEST): Selects test mode, which is used in testing the chip. Normally this bit should be cleared to 0. Bit 7 TEST 0 1 Description PWM (D/A) in user state: normal operation PWM (D/A) in test state: correct conversion results unobtainable (Initial value) Bit 6--PWM Enable (PWME): Starts or stops the PWM D/A counter (DACNT). Bit 6 PWME 0 1 Description DACNT operates as a 14-bit up-counter DACNT halts at H'0003 (Initial value) Bits 5 and 4--Reserved: These bits cannot be modified and are always read as 1. Bit 3--Output Enable B (OEB): Enables or disables output on PWM D/A channel B. Bit 3 OEB 0 1 Description PWM (D/A) channel B output (at the PWM1/PWM3 pin) is disabled PWM (D/A) channel B output (at the PWM1/PWM3 pin) is enabled (Initial value) Bit 2--Output Enable A (OEA): Enables or disables output on PWM D/A channel A. Bit 2 OEA 0 1 Description PWM (D/A) channel A output (at the PWM0/PWM2 pin) is disabled PWM (D/A) channel A output (at the PWM0/PWM2 pin) is enabled (Initial value) Bit 1--Output Select (OS): Selects the phase of the PWM D/A output. Bit 1 OS 0 1 Description Direct PWM output Inverted PWM output (Initial value) 661 Bit 0--Clock Select (CKS): Selects the PWM D/A resolution. If the system clock (o) frequency is 10 MHz, resolutions of 100 ns and 200 ns can be selected. Bit 0 CKS 0 1 Description Operates at resolution (T) = system clock cycle time (tcyc ) Operates at resolution (T) = system clock cycle time (tcyc ) x 2 (Initial value) 14.2.4 Bit Module Stop Control Register B (MSTPCRB) : 7 1 R/W 6 1 R/W 5 1 R/W 4 1 R/W 3 1 R/W 2 1 R/W 1 1 R/W 0 1 R/W MSTPB7 MSTPB6 MSTPB5 MSTPB4 MSTPB3 MSTPB2 MSTPB1 MSTPB0 Initial value : R/W : MSTPCRB is an 8-bit readable/writable register, and is used to perform module stop mode control. When the MSTPB2 is set to 1, at the end of the bus cycle 14-bit PWM timer 0 operation is halted and a transition made to module stop mode. When the MSTPB1 is set to 1, at the end of the bus cycle PWM timer 1 operation is halted and a transition made to module stop mode. See section 24.5, Module Stop Mode, for details. MSTPCRB is initialized to H'FF by a power-on reset and in hardware standby mode. It is not initialized in manual reset or software standby mode. Bit 2--Module Stop (MSTPB2): Specifies PWM0 module stop mode. Bit 2 MSTPB2 0 1 Description PWM0 module stop mode is cleared PWM0 module stop mode is set (Initial value) Bit 1--Module Stop (MSTPB1): Specifies PWM1 module stop mode. Bit 1 MSTPB1 0 1 Description PWM1 module stop mode is cleared PWM1 module stop mode is set (Initial value) 662 14.3 Bus Master Interface DACNT, DADRA, and DADRB are 16-bit registers. The data bus linking the bus master and the on-chip supporting modules, however, is only 8 bits wide. When the bus master accesses these registers, it therefore uses an 8-bit temporary register (TEMP). These registers are written and read as follows (taking the example of the CPU interface). * Write When the upper byte is written, the upper-byte write data is stored in TEMP. Next, when the lower byte is written, the lower-byte write data and TEMP value are combined, and the combined 16-bit value is written in the register. * Read When the upper byte is read, the upper-byte value is transferred to the CPU and the lower-byte value is transferred to TEMP. Next, when the lower byte is read, the lower-byte value in TEMP is transferred to the CPU. These registers should always be accessed 16 bits at a time (by word access or two consecutive byte accesses), and the upper byte should always be accessed before the lower byte. Correct data will not be transferred if only the upper byte or only the lower byte is accessed. Figure 14-2 shows the data flow for access to DACNT. The other registers are accessed similarly. Example 1: Write to DACNT MOV.W R0, @DACNT ; Write R0 contents to DACNT Example 2: Read DADRA MOV.W @DADRA, R0 ; Copy contents of DADRA to R0 Table 14-3 Read and Write Access Methods for 16-Bit Registers Read Register Name DADRA and DADRB DACNT Word Yes Yes Byte Yes x Word Yes Yes Write Byte x x Notes: Yes: Permitted type of access. Word access includes successive byte accesses to the upper byte (first) and lower byte (second). x: This type of access may give incorrect results. 663 Upper-Byte Write Bus interface Module data bus CPU (H'AA) Upper byte TEMP (H'AA) DACNTH ( ) DACNTL ( ) Lower-Byte Write Bus interface Module data bus CPU (H'57) Lower byte TEMP (H'AA) DACNTH (H'AA) DACNTL (H'57) Figure 14-2 (a) Access to DACNT (CPU Writes H'AA57 to DACNT) 664 Upper-Byte Read Bus interface Module data bus CPU (H'AA) Upper byte TEMP (H'57) DACNTH (H'AA) DACNTL (H'57) Lower-Byte Read Bus interface Module data bus CPU (H'57) Lower byte TEMP (H'57) DACNTH ( ) DACNTL ( ) Figure 14-2 (b) Access to DACNT (CPU Reads H'AA57 from DACNT) 665 14.4 Operation A PWM waveform like the one shown in figure 14-3 is output from the PWMX pin. When OS = 0, the value in DADR corresponds to the total width (TL ) of the low (0) pulses output in one conversion cycle (256 pulses when CFS = 0, 64 pulses when CFS = 1). When OS = 1, the output waveform is inverted and the DADR value corresponds to the total width (TH) of the high (1) output pulses. Figure 14-4 shows the types of waveform output available. 1 conversion cycle (T x 214 (= 16384)) tf Basic cycle (T x 64 or T x 256) tL T: Resolution TL = tLn (when OS = 0) n=1 m (When CFS = 0, m = 256; when CFS = 1, m = 64) Figure 14-3 PWM D/A Operation Table 14-4 summarizes the relationships of the CKS, CFS, and OS bit settings to the resolution, base cycle, and conversion cycle. The PWM output remains flat unless DADR contains at least a certain minimum value. Table 14-4 indicates the range of DADR settings that give an output waveform like the one in figure 14-3, and lists the conversion cycle length when low-order DADR bits are kept cleared to 0, reducing the conversion precision to 12 bits or 10 bits. 666 Table 14-4 Settings and Operation (Examples when o = 10 MHz) Fixed DADR Bits Bit Data Resolution Base Conversion TL (if OS = 0) CKS T (s) CFS Cycle (s) Cycle (s) TH (if OS = 1) 0 0.1 0 6.4 1638.4 Precision Conversion (Bits) 3 2 1 0 Cycle* (s) 1638.4 1. Always low (or high) 14 (DADR = H'0001 to H'03FD) 2. (Data value) x T (DADR = H'0401 to H'FFFD) 10 12 0 0 409.6 0 0 0 0 102.4 1638.4 1 25.6 1638.4 1. Always low (or high) 14 (DADR = H'0003 to H'00FF) 2. (Data value) x T (DADR = H'0103 to H'FFFF) 10 12 0 0 409.6 0 0 0 0 102.4 3276.8 1 0.2 0 12.8 3276.8 1. Always low (or high) 14 (DADR = H'0001 to H'03FD) 2. (Data value) x T (DADR = H'0401 to H'FFFD) 10 12 0 0 819.2 0 0 0 0 204.8 3276.8 1 51.2 3276.8 1. Always low (or high) 14 (DADR = H'0003 to H'00FF) 2. (Data value) x T (DADR = H'0103 to H'FFFF) 10 12 0 0 819.2 0 0 0 0 204.8 Note: * This column indicates the conversion cycle when specific DADR bits are fixed. 667 1. OS = 0 (DADR corresponds to TL) a. CFS = 0 [base cycle = resolution (T) x 64] 1 conversion cycle tf1 tf2 tf255 tf256 tL1 tL2 tL3 tL255 tL256 tf1 = tf2 = tf3 = * * * = tf255 = tf256 = T x 64 tL1 + tL2 + tL3 + * * * + tL255 + tL256 = TL Figure 14-4 (1) Output Waveform b. CFS = 1 [base cycle = resolution (T) x 256] 1 conversion cycle tf1 tf2 tf63 tf64 tL1 tL2 tL3 tL63 tL64 tf1 = tf2 = tf3 = * * * = tf63 = tf64 = T x 256 tL1 + tL2 + tL3 + * * * + tL63 + tL64 = TL Figure 14-4 (2) Output Waveform 668 2. OS = 1 (DADR corresponds to TH) a. CFS = 0 [base cycle = resolution (T) x 64] 1 conversion cycle tf1 tf2 tf255 tf256 tH1 tH2 tH3 tH255 tH256 tf1 = tf2 = tf3 = * * * = tf255 = tf256 = T x 64 tH1 + tH2 + tH3 + * * * + tH255 + tH256 = TH Figure 14-4 (3) Output Waveform b. CFS = 1 [base cycle = resolution (T) x 256] 1 conversion cycle tf1 tf2 tf63 tf64 tH1 tH2 tH3 tH63 tH64 tf1 = tf2 = tf3 = * * * = tf63 = tf64 = T x 256 tH1 + tH2 + tH3 + * * * + tH63 + tH64 = TH Figure 14-4 (4) Output Waveform 669 670 Section 15 Watchdog Timer (WDT1 is not available in the H8S/2695) 15.1 Overview The H8S/2633 Series has a two channel inbuilt watchdog timer, (WDT0/WDT1). The WDT outputs an overflow signal (WDTOVF) if a system crash prevents the CPU from writing to the timer counter, allowing it to overflow. At the same time, the WDT can also generate an internal reset signal for the H8S/2633 Series. When this watchdog function is not needed, the WDT can be used as an interval timer. In interval timer operation, an interval timer interrupt is generated each time the counter overflows. 15.1.1 Features WDT features are listed below. * Switchable between watchdog timer mode and interval timer mode * WDTOVF output when in watchdog timer mode If the counter overflows, the WDT outputs WDTOVF. It is possible to select whether the LSI is internally reset or an NMI interrupt is generated at the same time. This internal reset is effected by either a power-on reset or a manual reset. * Interrupt generation when in interval timer mode If the counter overflows, the WDT generates an interval timer interrupt. * WDT0 and WDT1 respectively allow eight and sixteen types of counter input clock to be selected The maximum interval of the WDT is given as a system clock cycle x 131072 x 256. A subclock may be selected for the input counter of WDT1*. Where a subclock is selected, the maximum interval is given as a subclock cycle x 256 x 256. * Selected clock can be output from the BUZZ * output pin (WDT1)* Note: * This function is not available in the H8S/2695. 671 15.1.2 Block Diagram Figure 15-1 (a) and 15-1 (b) show a block diagram of the WDT. Overflow WOVI 0 (interrupt request signal) Interrupt control Clock Clock select WDTOVF Internal reset signal* Reset control o/2 o/64 o/128 o/512 o/2048 o/8192 o/32768 o/131072 Internal clock sources Internal bus RSTCSR TCNT TSCR Module bus Bus interface WDT Legend : Timer control/status register TCSR : Timer counter TCNT RSTCSR : Reset control/status register Note: * The type of internal reset signal depends on a register setting. There are two alternative types of reset, namely power-on reset and manual reset. Figure 15-1 (a) Block Diagram of WDT0 672 WOVI1 (Interrupt request signal) Internal NMI Interrupt request signal Internal reset signal* Interrupt control Reset control Overflow Clock Clock select o/2 o/64 o/128 o/512 o/2048 o/8192 o/32768 o/131072 Internal clock oSUB/2 oSUB/4 oSUB/8 oSUB/16 oSUB/32 oSUB/64 oSUB/128 oSUB/256 TCNT TCSR Module bus WDT Legend: TCSR : Timer control/status register TCNT : Timer counter Note: * An internal reset signal can be generated by setting the register. The reset thus generated is a power-on reset. This function is not available in the H8S/2695. Bus interface Figure 15-1 (b) Block Diagram of WDT1 Internal bus BUZZ 673 15.1.3 Pin Configuration Table 15-1 describes the WDT output pin. Table 15-1 WDT Pin Name Watchdog timer overflow Buzzer output Symbol WDTOVF BUZZ* I/O Output Output Function Outputs counter overflow signal in watchdog timer mode Outputs clock selected by watchdog timer (WDT1) Note: * This function is not available in the H8S/2695. 15.1.4 Register Configuration Table 15-2 summarizes the WDT register configuration. These registers control clock selection, WDT mode switching, and the reset signal. Table 15-2 WDT Registers Address* 1 Channel Name 0 Abbreviation R/W R/(W)*3 R/W R/(W)* R/(W)* R/W R/W 3 3 Initial Value Write*2 Read H'18 H'00 H'1F H'00 H'00 H'0D/H'00 H'FF74 H'FF74 H'FF74 H'FF75 H'FF76 H'FF77 H'FFA2 H'FFA2 H'FFA2 H'FFA3 H'FDEB Timer control/status register 0 TCSR0 Timer counter 0 Reset control/status register TCNT0 RSTCSR 1 Timer control/status register 1 TCSR1 Timer counter 1 TCNT1 PFCR All Pin function control register Notes: *1 Lower 16 bits of the address. *2 For details of write operations, see section 15.2.5, Notes on Register Access. *3 Only a write of 0 is permitted to bit 7, to clear the flag. 674 15.2 15.2.1 Bit Register Descriptions Timer Counter (TCNT) : 7 6 5 4 3 2 1 0 Initial value : R/W : 0 R/W 0 R/W 0 R/W 0 R/W 0 R/W 0 R/W 0 R/W 0 R/W TCNT is an 8-bit readable/writable* up-counter. When the TME bit is set to 1 in TCSR, TCNT starts counting pulses generated from the internal clock source selected by bits CKS2 to CKS0 in TCSR. When the count overflows (changes from H'FF to H'00), either the watchdog timer overflow signal (WDTOVF) or an interval timer interrupt (WOVI) is generated, depending on the mode selected by the WT/IT bit in TCSR. TCNT is initialized to H'00 by a reset, in hardware standby mode, or when the TME bit is cleared to 0. It is not initialized in software standby mode. Note: * TCNT is write-protected by a password to prevent accidental overwriting. For details see section 15.2.5, Notes on Register Access. 15.2.2 TCSR0 Bit : 7 OVF Initial value : R/W : 0 R/(W)* 6 WT/IT 0 R/W 5 TME 0 R/W 4 -- 1 -- 3 -- 1 -- 2 CKS2 0 R/W 1 CKS1 0 R/W 0 CKS0 0 R/W Timer Control/Status Register (TCSR) Note: * Only a 0 can be written, for flag clearing. TCSR1 *1 Bit : 7 OVF Initial value : R/W : 0 R/(W)* 2 6 WT/IT 0 R/W 5 TME 0 R/W 4 PSS 0 R/W 3 RST/NMI 0 R/W 2 CKS2 0 R/W 1 CKS1 0 R/W 0 CKS0 0 R/W Notes: *1 In the case of the H8S/2695, only 0 should be written to the TCSR1 register. *2 Only a 0 can be written, for flag clearing. 675 TCSR is an 8-bit readable/writable* register. Its functions include selecting the clock source to be input to TCNT, and the timer mode. TCSR0 (TCSR1) is initialized to H'18 (H'00) by a reset and in hardware standby mode. It is not initialized in software standby mode. Note: * TCSR is write-protected by a password to prevent accidental overwriting. For details see section 15.2.5, Notes on Register Access. Bit 7--Overflow Flag (OVF): Indicates that TCNT has overflowed from H'FF to H'00. Bit 7 OVF 0 Description [Clearing conditions] * Cleared when 0 is written to the TME bit (Only applies to WDT1) * Cleared by reading TCSR when OVF = 1, then writing 0 to OVF [Setting condition] When TCNT overflows (changes from H'FF to H'00) When internal reset request generation is selected in watchdog timer mode, OVF is cleared automatically by the internal reset. (Initial value) 1 In interval timer mode, to clear OVF flag in WOVI handling routine, reead TCSR when OVF = 1, then write with 0 to OVF, as stated above. When WOVI is masked and OVF flag is poling, if contention between OVF flag set and TCSR read is occurred, OVF = 1 is read but OVF can not be cleared by writing with 0 to OVF. In this case, reading TCSR when OVF = 1 two times meet the requirements of OVF clear condition. Please read TCSR when OVF = 1 two times before writing with 0 to OVF. Bit 6--Timer Mode Select (WT/IT): Selects whether the WDT is used as a watchdog timer or interval timer. When TCNT overflows, WDT0 generates the WDTOVF signal when in watchdog timer mode, or a WOVI interrupt request to the CPU when in interval timer mode. WDT1* generates a reset or NMI interrupt request when in watchdog timer mode, or a WOVI interrupt request to the CPU when in interval timer mode. Note: * This function is not available in the H8S/2695. WDT0 Mode Select WDT0 WT/IT 0 1 Description Interval timer mode: WDT0 requests an interval timer interrupt (WOVI) from the CPU when the TCNT overflows. (Initial value) Watchdog timer mode: WDT0 outputs a WDTOVF signal when the TCNT overflows.* Note: * For details on a TCNT overflow in watchdog timer mode, see section 15.2.3, Reset Control/Status Register (RSTCSR). 676 WDT1* Mode Select WDT1 WT/IT 0 1 Description Interval timer mode: WDT1 requests an interval timer interrupt (WOVI) from the CPU when the TCNT overflows. Watchdog timer mode: WDT1 requests a reset or an NMI interrupt from the CPU when the TCNT overflows. (Initial value) Note: * In the case of the H8S/2695, only 0 should be written to the WT/IT bit in the TCSR1 register. Bit 5--Timer Enable (TME): Selects whether TCNT runs or is halted. Bit 5 TME 0 1 Description TCNT is initialized to H'00 and halted TCNT counts (Initial value) WDT0 TCSR Bit 4--Reserved Bit: This bit is always read as 1 and cannot be modified. Note: In the case of the H8S/2695, only 0 should be written to the TME bit in the TCSR1 register. WDT1 TCSR Bit 4--Prescaler Select (PSS): This bit is used to select an input clock source for the TCNT of WDT1. See the descriptions of Clock Select 2 to 0 for details. WDT1 TCSR Bit 4 PSS 0 1 Description The TCNT counts frequency-division clock pulses of the o based prescaler (PSM). (Initial value) The TCNT counts frequency-division clock pulses of the o SUB-based prescaler (PSS). Note: In the case of the H8S/2695, only 0 should be written to the PSS bit in the TCSR1 register. 677 WDT0 TCSR Bit 3--Reserved Bit: This bit is always read as 1 and cannot be modified. WDT1 TCSR Bit 3--Reset or NMI (RST/NMI): This bit is used to choose between an internal reset request and an NMI request when the TCNT overflows during the watchdog timer mode. Bit 3 RTS/NMI 0 1 Description NMI request. Internal reset request. (Initial value) Bits 2 to 0: Clock Select 2 to 0 (CKS2 to CKS0): These bits select one of eight internal clock sources, obtained by dividing the system clock (o) or subclock (o SUB), for input to TCNT. Note: In the case of the H8S/2695, only 0 should be written to the RST/NMI bit in the TCSR1 register. WDT0 Input Clock Select Description Bit 2 CKS2 0 Bit 1 CKS1 0 Bit 0 CKS0 0 1 1 0 1 1 0 0 1 1 0 1 Clock o/2 (Initial value) o/64 o/128 o/512 o/2048 o/8192 o/32768 o/131072 Overflow Period* (where o = 25 MHz) 20.4 s 655.3 s 1.3 ms 5.2 ms 20.9 ms 83.8 ms 335.5 ms 1.34 s Note: * An overflow period is the time interval between the start of counting up from H'00 on the TCNT and the occurrence of a TCNT overflow. 678 WDT1*1 Input Clock Select Description Bit 4 PSS 0 Bit 2 CKS2 0 Bit 1 CKS1 0 Bit 0 CKS0 0 1 1 0 1 1 0 0 1 1 0 1 1 0 0 0 1 1 0 1 1 0 0 1 1 0 1 Clock o/2 (Initial value) o/64 o/128 o/512 o/2048 o/8192 o/32768 o/131072 oSUB/2 oSUB/4 oSUB/8 oSUB/16 oSUB/32 oSUB/64 oSUB/128 oSUB/256 Overflow Period* 2 (where o = 25 MHz) (where o SUB = 32.768 kHz) 20.4 s 655.3 s 1.3 ms 5.2 ms 20.9 ms 83.8 ms 335.5 ms 1.34 s 15.6 ms 31.3 ms 62.5 ms 125 ms 250 ms 500 ms 1s 2s Notes: *1 WDT1 is not available in the H8S/2695. *2 An overflow period is the time interval between the start of counting up from H'00 on the TCNT and the occurrence of a TCNT overflow. 679 15.2.3 Bit Reset Control/Status Register (RSTCSR) : 7 WOVF 6 RSTE 0 R/W 5 RSTS 0 R/W 4 -- 1 -- 3 -- 1 -- 2 -- 1 -- 1 -- 1 -- 0 -- 1 -- Initial value : R/W : 0 R/(W)* Note: * Only 0 can be written, for flag clearing. RSTCSR is an 8-bit readable/writable* register that controls the generation of the internal reset signal when TCNT overflows, and selects the type of internal reset signal. RSTCSR is initialized to H'1F by a reset signal from the RES pin, but not by the WDT internal reset signal caused by overflows. Note: * RSTCSR is write-protected by a password to prevent accidental overwriting. For details see section 15.2.5, Notes on Register Access. Bit 7--Watchdog Overflow Flag (WOVF): Indicates that TCNT has overflowed (changed from H'FF to H'00) during watchdog timer operation. This bit is not set in interval timer mode. Bit 7 WOVF 0 Description [Clearing condition] Cleared by reading RSTCSR when WOVF = 1, then writing 0 to WOVF 1 [Setting condition] Set when TCNT overflows (changed from H'FF to H'00) during watchdog timer operation (Initial value) Bit 6--Reset Enable (RSTE): Specifies whether or not a reset signal is generated in the H8S/2633 Series if TCNT overflows during watchdog timer operation. Bit 6 RSTE 0 1 Description Reset signal is not generated if TCNT overflows* Reset signal is generated if TCNT overflows (Initial value) Note: * The modules within the H8S/2633 Series are not reset, but TCNT and TCSR within the WDT are reset. 680 Bit 5--Reset Select (RSTS): Selects the type of internal reset generated if TCNT overflows during watchdog timer operation. For details of the types of reset, see section 4, Exception Handling. Bit 5 RSTS 0 1 Description Power-on reset Manual reset (Initial value) Bits 4 to 0--Reserved: These bits are always read as 1 and cannot be modified. 15.2.4 Bit Pin Function Control Register (PFCR) : 7 CSS07 0 R/W 6 0 R/W 5 0 R/W 4 0 R/W 3 AE3 1/0 R/W 2 AE2 1/0 R/W 1 AE1 0 R/W 0 AE0 1/0 R/W CSS36 BUZZE* LCASS Initial value : R/W : Note: * This function is not available in the H8S/2695. PFCR is an 8-bit readable/writable register that performs address output control in external expanded mode. Only bit 5 is described here. For details of the other bits, see section 7.2.6, Pin Function Control Register (PFCR). Bit 5--BUZZ Output Enable (BUZZE): Enables or disables BUZZ output from the PF1 pin. The WDT1 input clock selected with bits PSS and CKS2 to CKS0 is output as the BUZZ signal. Bit 5 BUZZE 0 1 Description Functions as PF1 I/O pin Functions as BUZZ output pin (Initial value) Note: In the case of the H8S/2695, only 0 should be written to the BUZZ bit. 681 15.2.5 Notes on Register Access The watchdog timer's TCNT, TCSR, and RSTCSR registers differ from other registers in being more difficult to write to. The procedures for writing to and reading these registers are given below. Writing to TCNT and TCSR: These registers must be written to by a word transfer instruction. They cannot be written to with byte instructions. Figure 15-2 shows the format of data written to TCNT and TCSR. TCNT and TCSR both have the same write address. For a write to TCNT, the upper byte of the written word must contain H'5A and the lower byte must contain the write data. For a write to TCSR, the upper byte of the written word must contain H'A5 and the lower byte must contain the write data. This transfers the write data from the lower byte to TCNT or TCSR. TCNT write 15 Address: H'FF74 H'5A 87 Write data 0 TCSR write 15 Address: H'FF74 H'A5 87 Write data 0 Figure 15-2 Format of Data Written to TCNT and TCSR (WDT0) 682 Writing to RSTCSR: RSTCSR must be written to by word transfer instruction to address H'FF76. It cannot be written to with byte instructions. Figure 15-3 shows the format of data written to RSTCSR. The method of writing 0 to the WOVF bit differs from that for writing to the RSTE and RSTS bits. To write 0 to the WOVF bit, the write data must have H'A5 in the upper byte and H'00 in the lower byte. This clears the WOVF bit to 0, but has no effect on the RSTE and RSTS bits. To write to the RSTE and RSTS bits, the upper byte must contain H'5A and the lower byte must contain the write data. This writes the values in bits 6 and 5 of the lower byte into the RSTE and RSTS bits, but has no effect on the WOVF bit. Writing 0 to WOVF bit 15 Address: H'FF76 H'A5 87 H'00 0 Writing to RSTE and RSTS bits 15 Address: H'FF76 H'5A 87 Write data 0 Figure 15-3 Format of Data Written to RSTCSR (WDT0) Reading TCNT, TCSR, and RSTCSR (WDT0): These registers are read in the same way as other registers. The read addresses are H'FF74 for TCSR, H'FF75 for TCNT, and H'FF77 for RSTCSR. 683 15.3 15.3.1 Operation Watchdog Timer Operation To use the WDT as a watchdog timer, set the WT/IT bit in TCSR and TME bit to 1. Software must prevent TCNT overflows by rewriting the TCNT value (normally be writing H'00) before overflows occurs. This ensures that TCNT does not overflow while the system is operating normally. If TCNT overflows without being rewritten because of a system crash or other error, in the WDT0 the WDTOVF signal is output. This is shown in figure 15-4 (a). This WDTOVF signal can be used to reset the system. The WDTOVF signal is output for 132 states when RSTE = 1, and for 130 states when RSTE = 0. If TCNT overflows when 1 is set in the RSTE bit in RSTCSR, a signal that resets the H8S/2633 Series internally is generated at the same time as the WDTOVF signal. This reset can be selected as a power-on reset or a manual reset, depending on the setting of the RSTS bit in RSTCSR. The internal reset signal is output for 518 states. If a reset caused by a signal input to the RES pin occurs at the same time as a reset caused by a WDT overflow, the RES pin reset has priority and the WOVF bit in RSTCSR is cleared to 0. In the case of WDT1, the chip is reset, or an NMI interrupt request is generated, for 516 system clock periods (516o) (515 or 516 states when the clock source is oSUB (PSS = 1)). This is illustrated in figure 15-4 (b). An NMI request from the watchdog timer and an interrupt request from the NMI pin are both treated as having the same vector. So, avoid handling an NMI request from the watchdog timer and an interrupt request from the NMI pin at the same time. 684 TCNT count Overflow H'FF H'00 WT/IT=1 TME=1 H'00 written to TCNT WOVF=1 WDTOVF and internal reset are generated WT/IT=1 TME=1 H'00 written to TCNT Time WDTOVF signal 132 states*2 Internal reset signal*1 518 states Legend WT/IT : Timer mode select bit TME : Timer enable bit Notes: *1 The internal reset signal is generated only if the RSTE bit is set to 1. *2 130 states when the RSTE bit is cleared to 0. Figure 15-4 (a) WDT0 Watchdog Timer Operation TCNT value Overflow H'FF H'00 WT/IT= 1 TME= 1 Write H'00 to TCNT WOVF= 1* Occurrence of internal reset WT/IT= 1 Write H'00 TME= 1 to TCNT Time Internal reset signal 515/516 states Legend WT/IT : Timer Mode Select bit TME : Timer Enable bit Note: * The WOVF bit is set to 1 and then cleared to 0 by an internal reset. Figure 15-4 (b) WDT1 Operation in Watchdog Timer Mode 685 15.3.2 Interval Timer Operation To use the WDT as an interval timer, clear the WT/IT bit in TCSR to 0 and set the TME bit to 1. An interval timer interrupt (WOVI) is generated each time TCNT overflows, provided that the WDT is operating as an interval timer, as shown in figure 15-5. This function can be used to generate interrupt requests at regular intervals. TCNT count H'FF Overflow Overflow Overflow Overflow H'00 WT/IT=0 TME=1 WOVI WOVI WOVI WOVI Time Legend WOVI: Interval timer interrupt request generation Figure 15-5 Interval Timer Operation 15.3.3 Timing of Setting Overflow Flag (OVF) The OVF flag is set to 1 if TCNT overflows during interval timer operation. At the same time, an interval timer interrupt (WOVI) is requested. This timing is shown in figure 15-6. With WDT1*, the OVF bit of the TCSR is set to 1 and a simultaneous NMI interrupt is requested when the TCNT overflows if the NMI request has been chosen in the watchdog timer mode. Note: * WDT1 is not available in the H8S/2695. 686 o TCNT H'FF H'00 Overflow signal (internal signal) OVF Figure 15-6 Timing of Setting of OVF 15.3.4 Timing of Setting of Watchdog Timer Overflow Flag (WOVF) In the WDT0, the WOVF flag is set to 1 if TCNT overflows during watchdog timer operation. At the same time, the WDTOVF signal goes low. If TCNT overflows while the RSTE bit in RSTCSR is set to 1, an internal reset signal is generated for the entire H8S/2633 Series chip. Figure 15-7 shows the timing in this case. o TCNT Overflow signal (internal signal) WOVF H'FF H'00 WDTOVF signal Internal reset signal 132 states 518 states (WDT0) 515/516 states (WDT1) Figure 15-7 Timing of Setting of WOVF 687 15.4 Interrupts During interval timer mode operation, an overflow generates an interval timer interrupt (WOVI). The interval timer interrupt is requested whenever the OVF flag is set to 1 in TCSR. OVF must be cleared to 0 in the interrupt handling routine. If an NMI request has been chosen in the watchdog timer mode, an NMI request is generated when a TCNT overflow occurs. 15.5 15.5.1 Usage Notes Contention between Timer Counter (TCNT) Write and Increment If a timer counter clock pulse is generated during the T2 state of a TCNT write cycle, the write takes priority and the timer counter is not incremented. Figure 15-8 shows this operation. TCNT write cycle T1 T2 o Address Internal write signal TCNT input clock TCNT N M Counter write data Figure 15-8 Contention between TCNT Write and Increment 688 15.5.2 Changing Value of PSS and CKS2 to CKS0 If bits PSS and CKS2 to CKS0 in TCSR are written to while the WDT is operating, errors could occur in the incrementation. Software must stop the watchdog timer (by clearing the TME bit to 0) before changing the value of bits PSS and CKS2 to CKS0. 15.5.3 Switching between Watchdog Timer Mode and Interval Timer Mode If the mode is switched from watchdog timer to interval timer, or vice versa, while the WDT is operating, errors could occur in the incrementation. Software must stop the watchdog timer (by clearing the TME bit to 0) before switching the mode. 15.5.4 System Reset by WDTOVF Signal If the WDTOVF output signal is input to the RES pin of the H8S/2633 Series, the H8S/2633 Series will not be initialized correctly. Make sure that the WDTOVF signal is not input logically to the RES pin. To reset the entire system by means of the WDTOVF signal, use the circuit shown in figure 15-9. H8S/2633 Series RES Reset input Reset signal to entire system WDTOVF Figure 15-9 Circuit for System Reset by WDTOVF Signal (Example) 15.5.5 Internal Reset in Watchdog Timer Mode The H8S/2633 Series is not reset internally if TCNT overflows while the RSTE bit is cleared to 0 during watchdog timer operation, but TCNT and TCSR of the WDT are reset. TCNT, TCSR, and RSTCSR cannot be written to while the WDTOVF signal is low. Also note that a read of the WOVF flag is not recognized during this period. To clear the WOVF falg, therefore, read RSTCSR after the WDTOVF signal goes high, then write 0 to the WOVF flag. 689 15.5.6 OVF Flag Clearing in Interval Timer Mode When the OVF Flag setting conflicts with the OVF flag reading in interval timer mode, writing 0 to the OVF bit may not clear the flag even though the OVF bit has been read while it is 1. If there is a possibility that the OVF flag setting and reading will conflict, such as when the OVF flag is polled with the interval timer interrupt disabled, read the OVF bit while it is 1 at least twice before writing 0 to the OVF bit to clear the flag. 690 Section 16 Serial Communication Interface (SCI, IrDA) (The H8S/2695 is not equipped with an IrDA function) 16.1 Overview The H8S/2633 is equipped with 5 independent serial communication interface (SCI) channels. The SCI can handle both asynchronous and clocked synchronous serial communication. A function is also provided for serial communication between processors (multiprocessor communication function). One of the five SCI channels is capable of sending and receiving IrDA communications waveforms (based on IrDA Version 1.0). 16.1.1 Features SCI features are listed below. * Choice of asynchronous or clocked synchronous serial communication mode Asynchronous mode Serial data communication executed using asynchronous system in which synchronization is achieved character by character Serial data communication can be carried out with standard asynchronous communication chips such as a Universal Asynchronous Receiver/Transmitter (UART) or Asynchronous Communication Interface Adapter (ACIA) A multiprocessor communication function is provided that enables serial data communication with a number of processors Choice of 12 serial data transfer formats Data length : 7 or 8 bits Stop bit length : 1 or 2 bits Parity : Even, odd, or none Multiprocessor bit : 1 or 0 Receive error detection : Parity, overrun, and framing errors Break detection : Break can be detected by reading the RxD pin level directly in case of a framing error Clocked Synchronous mode Serial data communication synchronized with a clock Serial data communication can be carried out with other chips that have a synchronous communication function 691 One serial data transfer format Data length : 8 bits Receive error detection : Overrun errors detected * Full-duplex communication capability The transmitter and receiver are mutually independent, enabling transmission and reception to be executed simultaneously Double-buffering is used in both the transmitter and the receiver, enabling continuous transmission and continuous reception of serial data * Choice of LSB-first or MSB-first transfer Can be selected regardless of the communication mode* (except in the case of asynchronous mode 7-bit data) Note: * Descriptions in this section refer to LSB-first transfer. * On-chip baud rate generator allows any bit rate to be selected * Choice of serial clock source: internal clock from baud rate generator or external clock from SCK pin * Four interrupt sources Four interrupt sources -- transmit-data-empty, transmit-end, receive-data-full, and receive error -- that can issue requests independently The transmit-data-empty interrupt and receive data full interrupts can activate the DMA controller (DMAC) or data transfer controller (DTC) to execute data transfer * Module stop mode can be set As the initial setting, SCI operation is halted. Register access is enabled by exiting module stop mode 692 16.1.2 Block Diagram Figure 16-1 shows a block diagram of the SCI. Bus interface Module data bus Internal data bus RDR TDR RxD RSR TSR SCMR SSR SCR SMR Transmission/ reception control BRR o Baud rate generator o/4 o/16 o/64 Clock TxD Parity generation Parity check SCK External clock TEI TXI RXI ERI Legend RSR : Receive shift register RDR : Receive data register TSR : Transmit shift register TDR : Transmit data register SMR : Serial mode register SCR : Serial control register SSR : Serial status register SCMR : Smart card mode register BRR : Bit rate register Figure 16-1 Block Diagram of SCI 693 16.1.3 Pin Configuration Table 16-1 shows the serial pins for each SCI channel. Table 16-1 SCI Pins Channel 0 Pin Name Serial clock pin 0 Receive data pin 0 Transmit data pin 0 1 Serial clock pin 1 Receive data pin 1 Transmit data pin 1 2 Serial clock pin 2 Receive data pin 2 Transmit data pin 2 3 Serial clock pin 3 Receive data pin 3 Transmit data pin 3 4 Serial clock pin 4 Receive data pin 4 Transmit data pin 4 Symbol* SCK0 I/O I/O Function SCI0 clock input/output SCI0 receive data input (normal/IrDA) SCI0 transmit data output (normal/IrDA) SCI1 clock input/output SCI1 receive data input SCI1 transmit data output SCI2 clock input/output SCI2 receive data input SCI2 transmit data output SCI3 clock input/output SCI3 receive data input SCI3 transmit data output SCI4 clock input/output SCI4 receive data input SCI4 transmit data output RxD0/IrRxD Input TxD0/IrTxD SCK1 RxD1 TxD1 SCK2 RxD2 TxD2 SCK3 RxD3 TxD3 SCK4 RxD4 TxD4 Output I/O Input Output I/O Input Output I/O Input Output I/O Input Output Note: * Pin names SCK, RxD, and TxD are used in the text for all channels, omitting the channel designation. 694 16.1.4 Register Configuration The SCI has the internal registers shown in table 16-2. These registers are used to specify asynchronous mode or clocked synchronous mode, the data format , and the bit rate, and to control transmitter/receiver. Table 16-2 SCI Registers Channel 0 Name Serial mode register 0 Bit rate register 0 Serial control register 0 Transmit data register 0 Serial status register 0 Receive data register 0 Smart card mode register 0 IrDA control register 1 Serial mode register 1 Bit rate register 1 Serial control register 1 Transmit data register 1 Serial status register 1 Receive data register 1 Smart card mode register 1 2 Serial mode register 2 Bit rate register 2 Serial control register 2 Transmit data register 2 Serial status register 2 Receive data register 2 Smart card mode register 2 Abbreviation SMR0 BRR0 SCR0 TDR0 SSR0 RDR0 SCMR0 IrCR SMR1 BRR1 SCR1 TDR1 SSR1 RDR1 SCMR1 SMR2 BRR2 SCR2 TDR2 SSR2 RDR2 SCMR2 R/W R/W R/W R/W R/W R/(W)*2 R R/W R/W R/W R/W R/W R/W R/(W)*2 R R/W R/W R/W R/W R/W R/(W)* R R/W 2 Initial Value H'00 H'FF H'00 H'FF H'84 H'00 H'F2 H'00 H'00 H'FF H'00 H'FF H'84 H'00 H'F2 H'00 H'FF H'00 H'FF H'84 H'00 H'F2 Address* 1 H'FF78* 3 H'FF79* 3 H'FF7A* 3 H'FF7B* 3 H'FF7C* 3 H'FF7D* 3 H'FF7E* 3 H'FDB0 H'FF80* 3 H'FF81* 3 H'FF82* 3 H'FF83* 3 H'FF84* 3 H'FF85* 3 H'FF86* 3 H'FF88 H'FF89 H'FF8A H'FF8B H'FF8C H'FF8D H'FF8E 695 Channel 3 Name Serial mode register 3 Bit rate register 3 Serial control register 3 Transmit data register 3 Serial status register 3 Receive data register 3 Smart card mode register 3 Abbreviation SMR3 BRR3 SCR3 TDR3 SSR3 RDR3 SCMR3 SMR4 BRR4 SCR4 TDR4 SSR4 RDR4 SCMR4 MSTPCRB MSTPCRC R/W R/W R/W R/W R/W R/(W)* R R/W R/W R/W R/W R/W R/(W)* R R/W R/W R/W 2 2 Initial Value H'00 H'FF H'00 H'FF H'84 H'00 H'F2 H'00 H'FF H'00 H'FF H'84 H'00 H'F2 H'FF H'FF Address* 1 H'FDD0 H'FDD1 H'FDD2 H'FDD3 H'FDD4 H'FDD5 H'FDD6 H'FDD8 H'FDD9 H'FDDA H'FDDB H'FDDC H'FDDD H'FDDE H'FDE9 H'FDEA 4 Serial mode register 4 Bit rate register 4 Serial control register 4 Transmit data register 4 Serial status register 4 Receive data register 4 Smart card mode register 4 All Module stop control register B Module stop control register C Notes: *1 Lower 16 bits of the address. *2 Only 0 can be written, for flag clearing. *3 Some of the SCI registers are allocated to the same addresses as other registers. The IICE bit of the serial timer control register X (SCRX) selects the respective registers. 696 16.2 16.2.1 Bit R/W Register Descriptions Receive Shift Register (RSR) : : 7 -- 6 -- 5 -- 4 -- 3 -- 2 -- 1 -- 0 -- RSR is a register used to receive serial data. The SCI sets serial data input from the RxD pin in RSR in the order received, starting with the LSB (bit 0), and converts it to parallel data. When one byte of data has been received, it is transferred to RDR automatically. RSR cannot be directly read or written to by the CPU. 16.2.2 Bit Receive Data Register (RDR) : 7 0 R 6 0 R 5 0 R 4 0 R 3 0 R 2 0 R 1 0 R 0 0 R Initial value : R/W : RDR is a register that stores received serial data. When the SCI has received one byte of serial data, it transfers the received serial data from RSR to RDR where it is stored, and completes the receive operation. After this, RSR is receive-enabled. Since RSR and RDR function as a double buffer in this way, enables continuous receive operations to be performed. RDR is a read-only register, and cannot be written to by the CPU. RDR is initialized to H'00 by a reset, in standby mode, watch mode, subactive mode, and subsleep mode or module stop mode. 697 16.2.3 Bit R/W Transmit Shift Register (TSR) : : 7 -- 6 -- 5 -- 4 -- 3 -- 2 -- 1 -- 0 -- TSR is a register used to transmit serial data. To perform serial data transmission, the SCI first transfers transmit data from TDR to TSR, then sends the data to the TxD pin starting with the LSB (bit 0). When transmission of one byte is completed, the next transmit data is transferred from TDR to TSR, and transmission started, automatically. However, data transfer from TDR to TSR is not performed if the TDRE bit in SSR is set to 1. TSR cannot be directly read or written to by the CPU. 16.2.4 Bit Transmit Data Register (TDR) : 7 1 R/W 6 1 R/W 5 1 R/W 4 1 R/W 3 1 R/W 2 1 R/W 1 1 R/W 0 1 R/W Initial value : R/W : TDR is an 8-bit register that stores data for serial transmission. When the SCI detects that TSR is empty, it transfers the transmit data written in TDR to TSR and starts serial transmission. Continuous serial transmission can be carried out by writing the next transmit data to TDR during serial transmission of the data in TSR. TDR can be read or written to by the CPU at all times. TDR is initialized to H'FF by a reset, in standby mode, watch mode, subactive mode, and subsleep mode or module stop mode. 698 16.2.5 Bit Serial Mode Register (SMR) : 7 C/A 0 R/W 6 CHR 0 R/W 5 PE 0 R/W 4 O/E 0 R/W 3 STOP 0 R/W 2 MP 0 R/W 1 CKS1 0 R/W 0 CKS0 0 R/W Initial value : R/W : SMR is an 8-bit register used to set the SCI's serial transfer format and select the baud rate generator clock source. SMR can be read or written to by the CPU at all times. SMR is initialized to H'00 by a reset and in hardware standby mode. Bit 7--Communication Mode (C/A): Selects asynchronous mode or clocked synchronous mode as the SCI operating mode. Bit 7 C/A 0 1 Description Asynchronous mode Clocked synchronous mode (Initial value) Bit 6--Character Length (CHR): Selects 7 or 8 bits as the data length in asynchronous mode. In clocked synchronous mode, a fixed data length of 8 bits is used regardless of the CHR setting. Bit 6 CHR 0 1 Description 8-bit data 7-bit data* (Initial value) Note: * When 7-bit data is selected, the MSB (bit 7) of TDR is not transmitted, and it is not possible to choose between LSB-first or MSB-first transfer. 699 Bit 5--Parity Enable (PE): In asynchronous mode, selects whether or not parity bit addition is performed in transmission, and parity bit checking in reception. In clocked synchronous mode with a multiprocessor format, parity bit addition and checking is not performed, regardless of the PE bit setting. Bit 5 PE 0 1 Description Parity bit addition and checking disabled Parity bit addition and checking enabled* (Initial value) Note:* When the PE bit is set to 1, the parity (even or odd) specified by the O/E bit is added to transmit data before transmission. In reception, the parity bit is checked for the parity (even or odd) specified by the O/E bit. Bit 4--Parity Mode (O/E): Selects either even or odd parity for use in parity addition and checking. The O/E bit setting is only valid when the PE bit is set to 1, enabling parity bit addition and checking, in asynchronous mode. The O/E bit setting is invalid in clocked synchronous mode, when parity addition and checking is disabled in asynchronous mode, and when a multiprocessor format is used. Bit 4 O/E 0 1 Description Even parity* 1 Odd parity* 2 (Initial value) Notes: *1 When even parity is set, parity bit addition is performed in transmission so that the total number of 1 bits in the transmit character plus the parity bit is even. In reception, a check is performed to see if the total number of 1 bits in the receive character plus the parity bit is even. *2 When odd parity is set, parity bit addition is performed in transmission so that the total number of 1 bits in the transmit character plus the parity bit is odd. In reception, a check is performed to see if the total number of 1 bits in the receive character plus the parity bit is odd. 700 Bit 3--Stop Bit Length (STOP): Selects 1 or 2 bits as the stop bit length in asynchronous mode. The STOP bits setting is only valid in asynchronous mode. If clocked synchronous mode is set the STOP bit setting is invalid since stop bits are not added. Bit 3 STOP 0 1 Description 1 stop bit: In transmission, a single 1 bit (stop bit) is added to the end of a transmit character before it is sent. (Initial value) 2 stop bits: In transmission, two 1 bits (stop bits) are added to the end of a transmit character before it is sent. In reception, only the first stop bit is checked, regardless of the STOP bit setting. If the second stop bit is 1, it is treated as a stop bit; if it is 0, it is treated as the start bit of the next transmit character. Bit 2--Multiprocessor Mode (MP): Selects multiprocessor format. When multiprocessor format is selected, the PE bit and O/E bit parity settings are invalid. The MP bit setting is only valid in asynchronous mode; it is invalid in clocked synchronous mode. For details of the multiprocessor communication function, see section 16.3.3, Multiprocessor Communication Function. Bit 2 MP 0 1 Description Multiprocessor function disabled Multiprocessor format selected (Initial value) 701 Bits 1 and 0--Clock Select 1 and 0 (CKS1, CKS0): These bits select the clock source for the baud rate generator. The clock source can be selected from o, o/4, o/16, and o/64, according to the setting of bits CKS1 and CKS0. For the relation between the clock source, the bit rate register setting, and the baud rate, see section 16.2.8, Bit Rate Register (BRR). Bit 1 CKS1 0 Bit 0 CKS0 0 1 1 0 1 Description o clock o/4 clock o/16 clock o/64 clock (Initial value) 16.2.6 Bit Serial Control Register (SCR) : 7 TIE 0 R/W 6 RIE 0 R/W 5 TE 0 R/W 4 RE 0 R/W 3 MPIE 0 R/W 2 TEIE 0 R/W 1 CKE1 0 R/W 0 CKE0 0 R/W Initial value : R/W : SCR is a register that performs enabling or disabling of SCI transfer operations, serial clock output in asynchronous mode, and interrupt requests, and selection of the serial clock source. SCR can be read or written to by the CPU at all times. SCR is initialized to H'00 by a reset and in standby mode. Bit 7--Transmit Interrupt Enable (TIE): Enables or disables transmit data empty interrupt (TXI) request generation when serial transmit data is transferred from TDR to TSR and the TDRE flag in SSR is set to 1. Bit 7 TIE 0 1 Description Transmit data empty interrupt (TXI) requests disabled Transmit data empty interrupt (TXI) requests enabled (Initial value) Note: TXI interrupt request cancellation can be performed by reading 1 from the TDRE flag, then clearing it to 0, or clearing the TIE bit to 0. 702 Bit 6--Receive Interrupt Enable (RIE): Enables or disables receive data full interrupt (RXI) request and receive error interrupt (ERI) request generation when serial receive data is transferred from RSR to RDR and the RDRF flag in SSR is set to 1. Bit 6 RIE 0 1 Description Receive data full interrupt (RXI) request and receive error interrupt (ERI) request disabled* (Initial value) Receive data full interrupt (RXI) request and receive error interrupt (ERI) request enabled Note:* RXI and ERI interrupt request cancellation can be performed by reading 1 from the RDRF flag, or the FER, PER, or ORER flag, then clearing the flag to 0, or clearing the RIE bit to 0. Bit 5--Transmit Enable (TE): Enables or disables the start of serial transmission by the SCI. Bit 5 TE 0 1 Description Transmission disabled* 1 Transmission enabled* 2 (Initial value) Notes: *1 The TDRE flag in SSR is fixed at 1. *2 In this state, serial transmission is started when transmit data is written to TDR and the TDRE flag in SSR is cleared to 0. SMR setting must be performed to decide the transfer format before setting the TE bit to 1. Bit 4--Receive Enable (RE): Enables or disables the start of serial reception by the SCI. Bit 4 RE 0 1 Description Reception disabled* 1 Reception enabled* 2 (Initial value) Notes: *1 Clearing the RE bit to 0 does not affect the RDRF, FER, PER, and ORER flags, which retain their states. *2 Serial reception is started in this state when a start bit is detected in asynchronous mode or serial clock input is detected in clocked synchronous mode. SMR setting must be performed to decide the transfer format before setting the RE bit to 1. 703 Bit 3--Multiprocessor Interrupt Enable (MPIE): Enables or disables multiprocessor interrupts. The MPIE bit setting is only valid in asynchronous mode when the MP bit in SMR is set to 1. The MPIE bit setting is invalid in clocked synchronous mode or when the MP bit is cleared to 0. Bit 3 MPIE 0 Description Multiprocessor interrupts disabled (normal reception performed) [Clearing conditions] * * 1 When the MPIE bit is cleared to 0 When MPB= 1 data is received (Initial value) Multiprocessor interrupts enabled* Receive interrupt (RXI) requests, receive error interrupt (ERI) requests, and setting of the RDRF, FER, and ORER flags in SSR are disabled until data with the multiprocessor bit set to 1 is received. Note: * When receive data including MPB = 0 is received, receive data transfer from RSR to RDR, receive error detection, and setting of the RDRF, FER, and ORER flags in SSR , is not performed. When receive data including MPB = 1 is received, the MPB bit in SSR is set to 1, the MPIE bit is cleared to 0 automatically, and generation of RXI and ERI interrupts (when the TIE and RIE bits in SCR are set to 1) and FER and ORER flag setting is enabled. Bit 2--Transmit End Interrupt Enable (TEIE): Enables or disables transmit end interrupt (TEI) request generation when there is no valid transmit data in TDR in MSB data transmission. Bit 2 TEIE 0 1 Description Transmit end interrupt (TEI) request disabled* Transmit end interrupt (TEI) request enabled* (Initial value) Note: * TEI cancellation can be performed by reading 1 from the TDRE flag in SSR, then clearing it to 0 and clearing the TEND flag to 0, or clearing the TEIE bit to 0. 704 Bits 1 and 0--Clock Enable 1 and 0 (CKE1, CKE0): These bits are used to select the SCI clock source and enable or disable clock output from the SCK pin. The combination of the CKE1 and CKE0 bits determines whether the SCK pin functions as an I/O port, the serial clock output pin, or the serial clock input pin. The setting of the CKE0 bit, however, is only valid for internal clock operation (CKE1 = 0) in asynchronous mode. The CKE0 bit setting is invalid in clocked synchronous mode, and in the case of external clock operation (CKE1 = 1). Note that the SCI's operating mode must be decided using SMR before setting the CKE1 and CKE0 bits. For details of clock source selection, see table 16-9 in section 16.3, Operation. Bit 1 CKE1 0 Bit 0 CKE0 0 Description Asynchronous mode Clocked synchronous mode 1 Asynchronous mode Clocked synchronous mode 1 0 Asynchronous mode Clocked synchronous mode 1 Asynchronous mode Clocked synchronous mode Internal clock/SCK pin functions as I/O port* 1 Internal clock/SCK pin functions as serial clock output* 1 Internal clock/SCK pin functions as clock output* 2 Internal clock/SCK pin functions as serial clock output External clock/SCK pin functions as clock input* 3 External clock/SCK pin functions as serial clock input External clock/SCK pin functions as clock input* 3 External clock/SCK pin functions as serial clock input Notes: *1 Initial value *2 Outputs a clock of the same frequency as the bit rate. *3 Inputs a clock with a frequency 16 times the bit rate. 705 16.2.7 Bit Serial Status Register (SSR) : 7 TDRE 1 R/(W)* 6 RDRF 0 R/(W)* 5 ORER 0 R/(W)* 4 FER 0 R/(W)* 3 PER 0 R/(W)* 2 TEND 1 R 1 MPB 0 R 0 MPBT 0 R/W Initial value : R/W : Note: * Only 0 can be written, to clear the flag. SSR is an 8-bit register containing status flags that indicate the operating status of the SCI, and multiprocessor bits. SSR can be read or written to by the CPU at all times. However, 1 cannot be written to flags TDRE, RDRF, ORER, PER, and FER. Also note that in order to clear these flags they must be read as 1 beforehand. The TEND flag and MPB flag are read-only flags and cannot be modified. SSR is initialized to H'84 by a reset, in standby mode, watch mode, subactive mode, and subsleep mode or module stop mode. Bit 7--Transmit Data Register Empty (TDRE): Indicates that data has been transferred from TDR to TSR and the next serial data can be written to TDR. Bit 7 TDRE 0 Description [Clearing conditions] * When 0 is written to TDRE after reading TDRE = 1 * When the DMAC * or DTC* is activated by a TXI interrupt and writes data to TDR 1 [Setting conditions] (Initial value) * When the TE bit in SCR is 0 * When data is transferred from TDR to TSR and data can be written to TDR Note: * This function is not available in the H8S/2695. 706 Bit 6--Receive Data Register Full (RDRF): Indicates that the received data is stored in RDR. Bit 6 RDRF 0 Description [Clearing conditions] (Initial value) * When 0 is written to RDRF after reading RDRF = 1 * When the DMAC * or DTC* is activated by an RXI interrupt and reads data from RDR [Setting condition] When serial reception ends normally and receive data is transferred from RSR to RDR Notes: RDR and the RDRF flag are not affected and retain their previous values when an error is detected during reception or when the RE bit in SCR is cleared to 0. If reception of the next data is completed while the RDRF flag is still set to 1, an overrun error will occur and the receive data will be lost. * This function is not available in the H8S/2695. 1 Bit 5--Overrun Error (ORER): Indicates that an overrun error occurred during reception, causing abnormal termination. Bit 5 ORER 0 Description [Clearing condition] When 0 is written to ORER after reading ORER = 1 1 [Setting condition] When the next serial reception is completed while RDRF = 1*2 Notes: *1 The ORER flag is not affected and retains its previous state when the RE bit in SCR is cleared to 0. *2 The receive data prior to the overrun error is retained in RDR, and the data received subsequently is lost. Also, subsequent serial reception cannot be continued while the ORER flag is set to 1. In clocked synchronous mode, serial transmission cannot be continued, either. (Initial value)*1 707 Bit 4--Framing Error (FER): Indicates that a framing error occurred during reception in asynchronous mode, causing abnormal termination. Bit 4 FER 0 Description [Clearing condition] * 1 When 0 is written to FER after reading FER = 1 (Initial value)*1 [Setting condition] When the SCI checks whether the stop bit at the end of the receive data when reception ends, and the stop bit is 0 * 2 Notes: *1 The FER flag is not affected and retains its previous state when the RE bit in SCR is cleared to 0. *2 In 2-stop-bit mode, only the first stop bit is checked for a value of 0; the second stop bit is not checked. If a framing error occurs, the receive data is transferred to RDR but the RDRF flag is not set. Also, subsequent serial reception cannot be continued while the FER flag is set to 1. In clocked synchronous mode, serial transmission cannot be continued, either. Bit 3--Parity Error (PER): Indicates that a parity error occurred during reception using parity addition in asynchronous mode, causing abnormal termination. Bit 3 PER 0 1 Description [Clearing condition] When 0 is written to PER after reading PER = 1 [Setting condition] When, in reception, the number of 1 bits in the receive data plus the parity bit does not match the parity setting (even or odd) specified by the O/E bit in SMR* 2 (Initial value)*1 Notes: *1 The PER flag is not affected and retains its previous state when the RE bit in SCR is cleared to 0. *2 If a parity error occurs, the receive data is transferred to RDR but the RDRF flag is not set. Also, subsequent serial reception cannot be continued while the PER flag is set to 1. In clocked synchronous mode, serial transmission cannot be continued, either. 708 Bit 2--Transmit End (TEND): Indicates that there is no valid data in TDR when the last bit of the transmit character is sent, and transmission has been ended. The TEND flag is read-only and cannot be modified. Bit 2 TEND 0 Description [Clearing conditions] * When 0 is written to TDRE after reading TDRE = 1 * When the DMAC * or DTC* is activated by a TXI interrupt and writes data to TDR [Setting conditions] (Initial value) * When the TE bit in SCR is 0 * When TDRE = 1 at transmission of the last bit of a 1-byte serial transmit character 1 Note: * This function is not available in the H8S/2695. Bit 1--Multiprocessor Bit (MPB): When reception is performed using multiprocessor format in asynchronous mode, MPB stores the multiprocessor bit in the receive data. MPB is a read-only bit, and cannot be modified. Bit 1 MPB 0 1 Description [Clearing condition] When data with a 0 multiprocessor bit is received [Setting condition] When data with a 1 multiprocessor bit is received (Initial value)* Note: * Retains its previous state when the RE bit in SCR is cleared to 0 with multiprocessor format. Bit 0--Multiprocessor Bit Transfer (MPBT): When transmission is performed using multiprocessor format in asynchronous mode, MPBT stores the multiprocessor bit to be added to the transmit data. The MPBT bit setting is invalid when multiprocessor format is not used, when not transmitting, and in clocked synchronous mode. Bit 0 MPBT 0 1 Description Data with a 0 multiprocessor bit is transmitted Data with a 1 multiprocessor bit is transmitted (Initial value) 709 16.2.8 Bit Bit Rate Register (BRR) : 7 1 R/W 6 1 R/W 5 1 R/W 4 1 R/W 3 1 R/W 2 1 R/W 1 1 R/W 0 1 R/W Initial value : R/W : BRR is an 8-bit register that sets the serial transfer bit rate in accordance with the baud rate generator operating clock selected by bits CKS1 and CKS0 in SMR. BRR can be read or written to by the CPU at all times. BRR is initialized to H'FF by a reset and in standby mode. As baud rate generator control is performed independently for each channel, different values can be set for each channel. Table 16-3 shows sample BRR settings in asynchronous mode, and table 16-4 shows sample BRR settings in clocked synchronous mode. 710 Table 16-3 BRR Settings for Various Bit Rates (Asynchronous Mode) o = 2 MHz Bit Rate (bit/s) 110 150 300 600 1200 2400 4800 9600 19200 31250 38400 Error (%) 0.03 0.16 0.16 0.16 0.16 0.16 0.16 -- -- 0.00 -- o = 2.097152 MHz Error (%) o = 2.4576 MHz Error (%) o = 3 MHz Error (%) 0.03 0.16 0.16 0.16 0.16 0.16 -2.34 -2.34 -2.34 0.00 -- n 1 1 0 0 0 0 0 -- -- 0 -- N 141 103 207 103 51 25 12 -- -- 1 -- n 1 1 0 0 0 0 0 0 -- -- -- N 148 108 217 108 54 26 13 6 -- -- -- n N 174 127 255 127 63 31 15 7 3 -- 1 n N 212 155 77 155 77 38 19 9 4 2 -- -0.04 1 0.21 0.21 0.21 1 0 0 -0.26 1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 -- 0.00 1 1 0 0 0 0 0 0 0 -- -0.70 0 1.14 0 -2.48 0 -2.48 0 -- -- -- 0 -- 0 o = 3.6864 MHz Bit Rate (bit/s) 110 150 300 600 1200 2400 4800 9600 19200 31250 38400 Error (%) 0.70 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 -- 0.00 o = 4 MHz Error (%) 0.03 0.16 0.16 0.16 0.16 0.16 0.16 0.16 -- 0.00 -- o = 4.9152 MHz Error (%) 0.31 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 o = 5 MHz Error (%) -0.25 0.16 0.16 0.16 0.16 0.16 -1.36 1.73 1.73 0.00 1.73 n 2 1 1 0 0 0 0 0 0 -- 0 N 64 191 95 191 95 47 23 11 5 -- 2 n 2 1 1 0 0 0 0 0 -- 0 -- N 70 207 103 207 103 51 25 12 -- 3 -- n 2 1 1 0 0 0 0 0 0 0 0 N 86 255 127 255 127 63 31 15 7 4 3 n 2 2 1 1 0 0 0 0 0 N 88 64 129 64 129 64 32 15 7 4 3 -1.70 0 0.00 0 711 o = 6 MHz Bit Rate (bit/s) 110 150 300 600 1200 2400 4800 9600 19200 31250 38400 Error (%) o = 6.144 MHz Error (%) 0.08 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 2.40 0.00 o = 7.3728 MHz Error (%) o = 8 MHz Error (%) 0.03 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.00 -- n 2 2 1 1 0 0 0 0 0 0 0 N 106 77 155 77 155 77 38 19 9 5 4 n N 108 79 159 79 159 79 39 19 9 5 4 n 2 2 1 1 0 0 0 0 0 -- 0 N 130 95 191 95 191 95 47 23 11 -- 5 n N 141 103 207 103 207 103 51 25 12 7 -- -0.44 2 0.16 0.16 0.16 0.16 0.16 0.16 2 1 1 0 0 0 -0.07 2 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 -- 0.00 2 1 1 0 0 0 0 0 0 -- -2.34 0 -2.34 0 0.00 0 -2.34 0 o = 9.8304 MHz Bit Rate (bit/s) 110 150 300 600 1200 2400 4800 9600 19200 31250 38400 Error (%) o = 10 MHz Error (%) o = 12 MHz Error (%) 0.03 0.16 0.16 0.16 0.16 0.16 0.16 0.16 o = 12.288 MHz Error (%) 0.08 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 2.40 0.00 n 2 2 1 1 0 0 0 0 0 0 0 N 174 127 255 127 255 127 63 31 15 9 7 n N 177 129 64 129 64 129 64 32 15 9 7 n N 212 155 77 155 77 155 77 38 19 11 9 n 2 2 2 1 1 0 0 0 N 217 159 79 159 79 159 79 39 19 11 9 -0.26 2 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 2 2 1 1 0 0 0 0 -0.25 2 0.16 0.16 0.16 0.16 0.16 0.16 2 2 1 1 0 0 -1.36 0 1.73 0.00 1.73 0 0 0 -2.34 0 0.00 0 -1.70 0 0.00 0 -2.34 0 712 o = 14 MHz Bit Rate (bit/s) 110 150 300 600 1200 2400 4800 9600 19200 31250 38400 Error (%) o = 14.7456 MHz Error (%) 0.70 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 o = 16 MHz Error (%) 0.03 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.00 0.13 o = 17.2032 MHz Error (%) 0.48 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 1.20 0.00 n 2 2 2 1 1 0 0 0 0 0 -- N 248 181 90 181 90 181 90 45 22 13 -- n N 64 191 95 191 95 191 95 47 23 14 11 n 3 2 2 1 1 0 0 0 0 N 70 207 103 207 103 207 103 51 25 15 12 n 3 2 2 1 1 0 0 0 0 0 0 N 75 223 111 223 111 223 111 55 27 16 13 -0.17 3 0.16 0.16 0.16 0.16 0.16 0.16 2 2 1 1 0 0 -0.93 0 -0.93 0 0.00 -- 0 0 -1.70 0 0.00 0 o = 18 MHz Bit Rate (bit/s) 110 150 300 600 1200 2400 4800 9600 19200 31250 38400 Error (%) -0.12 0.16 0.16 0.16 0.16 0.16 0.16 -0.69 1.02 0.00 -2.34 o = 19.6608 MHz Error (%) 0.31 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 -1.70 0.00 o = 20 MHz Error (%) -0.25 0.16 0.16 0.16 0.16 0.16 0.16 0.16 -1.36 0.00 1.73 o = 25 MHz Error (%) -0.02 -0.47 0.15 -0.47 0.15 -0.47 0.15 -0.47 -0.76 0.00 1.73 o = 28 MHz Error (%) 0.23 0.16 0.16 0.16 0.16 0.16 0.16 0.16 -0.93 0.00 -0.93 n 3 2 2 1 1 0 0 0 0 0 0 N 79 233 116 233 116 233 116 58 28 17 14 n 3 2 2 1 1 0 0 0 0 0 0 N 86 255 127 255 127 255 127 63 31 19 15 n 3 3 2 2 1 1 0 0 0 0 0 N 88 64 129 64 129 64 129 64 32 19 15 n 3 3 2 2 1 1 0 0 0 0 0 N 110 80 162 80 162 80 162 80 40 24 19 n 3 3 2 2 1 1 0 0 0 0 0 N 123 90 181 90 181 90 181 90 45 27 22 713 Table 16-4 BRR Settings for Various Bit Rates (Clocked Synchronous Mode) o= Bit Rate 2 MHz (bit/s) 110 250 500 1k 2.5 k 5k 10 k 25 k 50 k 100 k 250 k 500 k 1M 2.5 M 5M n 3 2 1 1 0 0 0 0 0 0 0 0 N 70 124 249 124 199 99 49 19 9 4 1 0* o= 4 MHz n -- 2 2 1 1 0 0 0 0 0 0 0 0 N -- 249 124 249 99 199 99 39 19 9 3 1 0* 3 2 2 1 1 0 0 0 0 0 0 0 124 249 124 199 99 199 79 39 19 7 3 1 0 0* ---- ---- ---- 1 1 0 0 0 0 0 0 249 124 249 99 49 24 9 4 3 3 2 2 1 1 0 0 0 0 0 0 249 124 249 99 199 99 159 79 39 15 7 3 -- -- 2 1 1 0 0 0 0 0 0 0 0 -- -- 124 249 124 199 99 49 19 9 4 1 0* 3 2 2 1 0 0 0 0 -- -- -- -- 97 155 77 155 249 124 62 24 -- -- -- -- 3 3 2 1 1 0 0 0 0 0 0 -- -- 218 108 174 349 174 279 139 69 27 13 6 -- -- o= 8 MHz n N o= 10 MHz n N o= 16 MHz n N o= 20 MHz n N o= 25 MHz n N o= 28 MHz n N Note: As far as possible, the setting should be made so that the error is no more than 1%. Legend Blank : Cannot be set. -- : Can be set, but there will be a degree of error. * : Continuous transfer is not possible. 714 The BRR setting is found from the following formulas. Asynchronous mode: N= o 64 x 22n-1 x B x 10 6 - 1 Clocked synchronous mode: N= Where B: N: o: n: o 8x2 2n-1 xB x 10 6 - 1 Bit rate (bit/s) BRR setting for baud rate generator (0 N 255) Operating frequency (MHz) Baud rate generator input clock (n = 0 to 3) (See the table below for the relation between n and the clock.) SMR Setting n 0 1 2 3 Clock o o/4 o/16 o/64 CKS1 0 0 1 1 CKS0 0 1 0 1 The bit rate error in asynchronous mode is found from the following formula: Error (%) = { o x 106 (N + 1) x B x 64 x 22n-1 - 1} x 100 715 Table 16-5 shows the maximum bit rate for each frequency in asynchronous mode. Tables 16-6 and 16-7 show the maximum bit rates with external clock input. Table 16-5 Maximum Bit Rate for Each Frequency (Asynchronous Mode) o (MHz) 2 2.097152 2.4576 3 3.6864 4 4.9152 5 6 6.144 7.3728 8 9.8304 10 12 12.288 14 14.7456 16 17.2032 18 19.6608 20 25 28 Maximum Bit Rate (bit/s) 62500 65536 76800 93750 115200 125000 153600 156250 187500 192000 230400 250000 307200 312500 375000 384000 437500 460800 500000 537600 562500 614400 625000 781250 875000 n 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 N 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 716 Table 16-6 Maximum Bit Rate with External Clock Input (Asynchronous Mode) o (MHz) 2 2.097152 2.4576 3 3.6864 4 4.9152 5 6 6.144 7.3728 8 9.8304 10 12 12.288 14 14.7456 16 17.2032 18 19.6608 20 25 28 External Input Clock (MHz) 0.5000 0.5243 0.6144 0.7500 0.9216 1.0000 1.2288 1.2500 1.5000 1.5360 1.8432 2.0000 2.4576 2.5000 3.0000 3.0720 3.5000 3.6864 4.0000 4.3008 4.5000 4.9152 5.0000 6.2500 7.0000 Maximum Bit Rate (bit/s) 31250 32768 38400 46875 57600 62500 76800 78125 93750 96000 115200 125000 153600 156250 187500 192000 218750 230400 250000 268800 281250 307200 312500 390625 437500 717 Table 16-7 Maximum Bit Rate with External Clock Input (Clocked Synchronous Mode) o (MHz) 2 4 6 8 10 12 14 16 18 20 25 28 External Input Clock (MHz) 0.3333 0.6667 1.0000 1.3333 1.6667 2.0000 2.3333 2.6667 3.0000 3.3333 4.1667 4.6667 Maximum Bit Rate (bit/s) 333333.3 666666.7 1000000.0 1333333.3 1666666.7 2000000.0 2333333.3 2666666.7 3000000.0 3333333.3 4166666.7 4666666.7 718 16.2.9 Bit Smart Card Mode Register (SCMR) : 7 -- 1 -- 6 -- 1 -- 5 -- 1 -- 4 -- 1 -- 3 SDIR 0 R/W 2 SINV 0 R/W 1 -- 1 -- 0 SMIF 0 R/W Initial value : R/W : SCMR selects LSB-first or MSB-first by means of bit SDIR. Except in the case of asynchronous mode 7-bit data, LSB-first or MSB-first can be selected regardless of the serial communication mode. The descriptions in this chapter refer to LSB-first transfer. For details of the other bits in SCMR, see section 17.2.1, Smart Card Mode Register (SCMR). SCMR is initialized to H'F2 by a reset and in standby mode. Bits 7 to 4--Reserved: These bits are always read as 1 and cannot be modified. Bit 3--Smart Card Data Transfer Direction (SDIR): Selects the serial/parallel conversion format. This bit is valid when 8-bit data is used as the transmit/receive format. Bit 3 SDIR 0 Description TDR contents are transmitted LSB-first Receive data is stored in RDR LSB-first 1 TDR contents are transmitted MSB-first Receive data is stored in RDR MSB-first (Initial value) Bit 2--Smart Card Data Invert (SINV): Specifies inversion of the data logic level. The SINV bit does not affect the logic level of the parity bit(s): parity bit inversion requires inversion of the O/E bit in SMR. Bit 2 SINV 0 1 Description TDR contents are transmitted without modification Receive data is stored in RDR without modification TDR contents are inverted before being transmitted Receive data is stored in RDR in inverted form (Initial value) 719 Bit 1--Reserved: This bit is always read as 1 and cannot be modified. Bit 0--Smart Card Interface Mode Select (SMIF): When the smart card interface operates as a normal SCI, 0 should be written in this bit. Bit 0 SMIF 0 1 Description Operates as normal SCI (smart card interface function disabled) Smart card interface function enabled (Initial value) 16.2.10 Bit IrDA Control Register (IrCR) : 7 IrE 6 IrCKS2 0 R/W 5 IrCKS1 0 R/W 4 IrCKS0 0 R/W 3 -- 0 -- 2 -- 0 -- 1 -- 0 -- 0 -- 0 -- Initial value : R/W : 0 R/W IrCR is an 8-bit read/write register that selects the SCI0 function. IrCR is initialized to H'00 when in hardware standby mode. Note: This register's functions are not supported in the H8S/2695. Only 0 should be written to this register. Bit 7--IrDA enable (IrE): Sets SCI0 input and output for normal SCI operation or IrDA operation. Bit 7 IrE 0 1 Description TxD0/IrTxD and RxD0/IrRxD pins operate as TxD0 and RxD0 TxD0/IrTxD and RxD0/IrRxD pins operate as IrTxD and IrRxD (Initial value) 720 Bits 6 to 4--IrDA clock select 2 to 0 (IrCKS2 to IrCKS0): When the IrDA function is enabled, these bits set the width of the High pulse when encoding the IrTxD output pulse. Bit 6 IrCKS2 0 Bit 5 IrCKS1 0 Bit 4 IrCKS0 0 1 1 0 1 1 0 0 1 1 0 1 Description Bx3/16 (three sixteenths of bit rate) o/2 o/4 o/8 o/16 o/32 o/64 o/128 (Initial value) Bits 3 to 0--Reserved: These bits are always read as 0 and cannot be modified. 16.2.11 Module Stop Control Registers B and C (MSTPCRB, MSTPCRC) MSTPCRB Bit : 7 1 R/W 6 1 R/W 5 1 R/W 4 1 R/W 3 1 R/W 2 1 R/W 1 1 R/W 0 1 R/W MSTPB7 MSTPB6 MSTPB5 MSTPB4 MSTPB3 MSTPB2 MSTPB1 MSTPB0 Initial value : R/W : MSTPCRC Bit : 7 1 R/W 6 1 R/W 5 1 R/W 4 1 R/W 3 1 R/W 2 1 R/W 1 1 R/W 0 1 R/W MSTPC7 MSTPC6 MSTPC5 MSTPC4 MSTPC3 MSTPC2 MSTPC1 MSTPC0 Initial value : R/W : MSTPCRB and MSTPCRC are 8-bit readable/writable registers that perform module stop mode control. Setting any of bits MSTPB7 to MSTBP5 and MSTPC7 and MSTPC6 to 1 stops SCI0 to SCI4 operating and enter module stop mode on completion of the bus cycle. For details, see section 24.5, Module Stop Mode. 721 MSTPCRB and MSTPCRC are initialized to H'FF by a power-on reset and in hardware standby mode. They are not initialized by a manual reset and in software standby mode. (1) Module Stop Control Register B (MSTPCRB) Bit 7--Module Stop (MSTPB7): Specifies the SCI0 module stop mode. Bit 7 MSTPB7 0 1 Description SCI0 module stop mode is cleared SCI0 module stop mode is set (Initial value) Bit 6--Module Stop (MSTPB6): Specifies the SCI1 module stop mode. Bit 6 MSTPB6 0 1 Description SCI1 module stop mode is cleared SCI1 module stop mode is set (Initial value) Bit 5--Module Stop (MSTPB5): Specifies the SCI2 module stop mode. Bit 5 MSTPB5 0 1 Description SCI2 module stop mode is cleared SCI2 module stop mode is set (Initial value) (2) Module Stop Control Register C (MSTPCRC) Bit 7--Module Stop (MSTPC7): Specifies the SCI3 module stop mode. Bit 7 MSTPC7 0 1 Description SCI3 module stop mode is cleared SCI3 module stop mode is set (Initial value) 722 Bit 6--Module Stop (MSTPC6): Specifies the SCI4 module stop mode. Bit 6 MSTPC6 0 1 Description SCI4 module stop mode is cleared SCI4 module stop mode is set (Initial value) 16.3 16.3.1 Operation Overview The SCI can carry out serial communication in two modes: asynchronous mode in which synchronization is achieved character by character, and clocked synchronous mode in which synchronization is achieved with clock pulses. Selection of asynchronous or clocked synchronous mode and the transmission format is made using SMR as shown in table 16-8. The SCI clock is determined by a combination of the C/A bit in SMR and the CKE1 and CKE0 bits in SCR, as shown in table 16-9. Asynchronous Mode * Data length: Choice of 7 or 8 bits * Choice of parity addition, multiprocessor bit addition, and addition of 1 or 2 stop bits (the combination of these parameters determines the transfer format and character length) * Detection of framing, parity, and overrun errors, and breaks, during reception * Choice of internal or external clock as SCI clock source When internal clock is selected: The SCI operates on the baud rate generator clock and a clock with the same frequency as the bit rate can be output When external clock is selected: A clock with a frequency of 16 times the bit rate must be input (the on-chip baud rate generator is not used) Clocked Synchronous Mode * Transfer format: Fixed 8-bit data * Detection of overrun errors during reception * Choice of internal or external clock as SCI clock source 723 When internal clock is selected: The SCI operates on the baud rate generator clock and a serial clock is output off-chip When external clock is selected: The on-chip baud rate generator is not used, and the SCI operates on the input serial clock Table 16-8 SMR Settings and Serial Transfer Format Selection SMR Settings Bit 7 C/A 0 Bit 6 CHR 0 Bit 2 MP 0 Bit 5 PE 0 Bit 3 STOP 0 1 1 0 1 1 0 0 1 1 0 1 0 1 -- -- 1 -- -- 1 -- -- -- 0 1 0 1 -- Clocked 8-bit data synchronous mode No Asynchronous mode (multiprocessor format) 8-bit data Yes No Yes 7-bit data No Mode Asynchronous mode Yes SCI Transfer Format Multi Processor Bit No Data Length 8-bit data Parity Bit No Stop Bit Length 1 bit 2 bits 1 bit 2 bits 1 bit 2 bits 1 bit 2 bits 1 bit 2 bits 7-bit data 1 bit 2 bits None 724 Table 16-9 SMR and SCR Settings and SCI Clock Source Selection SMR Bit 7 C/A 0 SCR Setting Bit 1 CKE1 0 Bit 0 CKE0 0 1 1 0 1 1 0 0 1 1 0 1 Clocked synchronous mode Internal Mode Asynchronous mode Clock Source Internal SCI Transmit/Receive Clock SCK Pin Function SCI does not use SCK pin Outputs clock with same frequency as bit rate External Inputs clock with frequency of 16 times the bit rate Outputs serial clock External Inputs serial clock 725 16.3.2 Operation in Asynchronous Mode In asynchronous mode, characters are sent or received, each preceded by a start bit indicating the start of communication and stop bits indicating the end of communication. Serial communication is thus carried out with synchronization established on a character-by-character basis. Inside the SCI, the transmitter and receiver are independent units, enabling full-duplex communication. Both the transmitter and the receiver also have a double-buffered structure, so that data can be read or written during transmission or reception, enabling continuous data transfer. Figure 16-2 shows the general format for asynchronous serial communication. In asynchronous serial communication, the transmission line is usually held in the mark state (high level). The SCI monitors the transmission line, and when it goes to the space state (low level), recognizes a start bit and starts serial communication. One serial communication character consists of a start bit (low level), followed by data (in LSBfirst order), a parity bit (high or low level), and finally stop bits (high level). In asynchronous mode, the SCI performs synchronization at the falling edge of the start bit in reception. The SCI samples the data on the 8th pulse of a clock with a frequency of 16 times the length of one bit, so that the transfer data is latched at the center of each bit. Idle state (mark state) 1 Serial data 0 Start bit 1 bit LSB D0 D1 D2 D3 D4 D5 D6 MSB D7 0/1 Parity bit 1 bit, or none 1 1 1 Stop bit Transmit/receive data 7 or 8 bits 1 or 2 bits One unit of transfer data (character or frame) Figure 16-2 Data Format in Asynchronous Communication (Example with 8-Bit Data, Parity, Two Stop Bits) 726 Data Transfer Format: Table 16-10 shows the data transfer formats that can be used in asynchronous mode. Any of 12 transfer formats can be selected according to the SMR setting. Table 16-10 Serial Transfer Formats (Asynchronous Mode) SMR Settings CHR 0 0 0 0 1 1 1 1 0 0 1 1 PE 0 0 1 1 0 0 1 1 -- -- -- -- MP 0 0 0 0 0 0 0 0 1 1 1 1 STOP 0 1 0 1 0 1 0 1 0 1 0 1 1 S Serial Transfer Format and Frame Length 2 3 4 5 6 7 8 9 10 STOP 11 12 8-bit data 8-bit data 8-bit data 8-bit data 7-bit data 7-bit data 7-bit data 7-bit data 8-bit data 8-bit data 7-bit data 7-bit data STOP S STOP STOP S P STOP S P STOP STOP S S STOP STOP S P STOP S P STOP STOP S MPB STOP S MPB STOP STOP S MPB STOP S MPB STOP STOP Legend S : Start bit STOP : Stop bit P : Parity bit MPB : Multiprocessor bit 727 Clock: Either an internal clock generated by the on-chip baud rate generator or an external clock input at the SCK pin can be selected as the SCI's serial clock, according to the setting of the C/A bit in SMR and the CKE1 and CKE0 bits in SCR. For details of SCI clock source selection, see table 16-9. When an external clock is input at the SCK pin, the clock frequency should be 16 times the bit rate used. When the SCI is operated on an internal clock, the clock can be output from the SCK pin. The frequency of the clock output in this case is equal to the bit rate, and the phase is such that the rising edge of the clock is in the middle of the transmit data, as shown in figure 16-3. 0 D0 D1 D2 D3 D4 D5 D6 D7 0/1 1 1 1 frame Figure 16-3 Relation between Output Clock and Transfer Data Phase (Asynchronous Mode) Data Transfer Operations: * SCI initialization (asynchronous mode) Before transmitting and receiving data, you should first clear the TE and RE bits in SCR to 0, then initialize the SCI as described below. When the operating mode, transfer format, etc., is changed, the TE and RE bits must be cleared to 0 before making the change using the following procedure. When the TE bit is cleared to 0, the TDRE flag is set to 1 and TSR is initialized. Note that clearing the RE bit to 0 does not change the contents of the RDRF, PER, FER, and ORER flags, or the contents of RDR. When an external clock is used the clock should not be stopped during operation, including initialization, since operation is uncertain. 728 Figure 16-4 shows a sample SCI initialization flowchart. [1] Set the clock selection in SCR. Be sure to clear bits RIE, TIE, TEIE, and MPIE, and bits TE and RE, to 0. When the clock is selected in asynchronous mode, it is output immediately after SCR settings are made. [2] Set the data transfer format in SMR and SCMR. [3] Write a value corresponding to the bit rate to BRR. Not necessary if an external clock is used. [4] Wait at least one bit interval, then set the TE bit or RE bit in SCR to 1. Also set the RIE, TIE, TEIE, and MPIE bits. Setting the TE and RE bits enables the TxD and RxD pins to be used. [4] Start initialization Clear TE and RE bits in SCR to 0 Set CKE1 and CKE0 bits in SCR (TE, RE bits 0) [1] Set data transfer format in SMR and SCMR Set value in BRR Wait [2] [3] No 1-bit interval elapsed? Yes Set TE and RE bits in SCR to 1, and set RIE, TIE, TEIE, and MPIE bits Figure 16-4 Sample SCI Initialization Flowchart 729 * Serial data transmission (asynchronous mode) Figure 16-5 shows a sample flowchart for serial transmission. The following procedure should be used for serial data transmission. Initialization Start transmission [1] Read TDRE flag in SSR [2] [1] SCI initialization: The TxD pin is automatically designated as the transmit data output pin. After the TE bit is set to 1, a frame of 1s is output, and transmission is enabled. [2] SCI status check and transmit data write: Read SSR and check that the TDRE flag is set to 1, then write transmit data to TDR and clear the TDRE flag to 0. [3] Serial transmission continuation procedure: To continue serial transmission, read 1 from the TDRE flag to confirm that writing is possible, then write data to TDR, and then clear the TDRE flag to 0. Checking and clearing of the TDRE flag is automatic when the DMAC* or DTC* is activated by a transmit data empty interrupt (TXI) request, and date is written to TDR. [4] Break output at the end of serial transmission: To output a break in serial transmission, set DDR for the port corresponding to the TxD pin to 1, clear DR to 0, then clear the TE bit in SCR to 0. No TDRE=1 Yes Write transmit data to TDR and clear TDRE flag in SSR to 0 No All data transmitted? Yes [3] Read TEND flag in SSR No TEND= 1 Yes No Break output? Yes Clear DR to 0 and set DDR to 1 [4] Note: * DMAC and DTC functions are not available in the H8S/2695. Clear TE bit in SCR to 0 Figure 16-5 Sample Serial Transmission Flowchart 730 In serial transmission, the SCI operates as described below. [1] The SCI monitors the TDRE flag in SSR, and if is 0, recognizes that data has been written to TDR, and transfers the data from TDR to TSR. [2] After transferring data from TDR to TSR, the SCI sets the TDRE flag to 1 and starts transmission. If the TIE bit is set to 1 at this time, a transmit data empty interrupt (TXI) is generated. The serial transmit data is sent from the TxD pin in the following order. [a] Start bit: One 0-bit is output. [b] Transmit data: 8-bit or 7-bit data is output in LSB-first order. [c] Parity bit or multiprocessor bit: One parity bit (even or odd parity), or one multiprocessor bit is output. A format in which neither a parity bit nor a multiprocessor bit is output can also be selected. [d] Stop bit(s): One or two 1-bits (stop bits) are output. [e] Mark state: 1 is output continuously until the start bit that starts the next transmission is sent. [3] The SCI checks the TDRE flag at the timing for sending the stop bit. If the TDRE flag is cleared to 0, the data is transferred from TDR to TSR, the stop bit is sent, and then serial transmission of the next frame is started. If the TDRE flag is set to 1, the TEND flag in SSR is set to 1, the stop bit is sent, and then the "mark state" is entered in which 1 is output continuously. If the TEIE bit in SCR is set to 1 at this time, a TEI interrupt request is generated. 731 Figure 16-6 shows an example of the operation for transmission in asynchronous mode. Start bit 0 D0 D1 Data D7 Parity Stop Start bit bit bit 0/1 1 0 D0 D1 Data D7 Parity Stop bit bit 0/1 1 1 1 Idle state (mark state) TDRE TEND TXI interrupt Data written to TDR and request generated TDRE flag cleared to 0 in TXI interrupt service routine TXI interrupt request generated TEI interrupt request generated 1 frame Figure 16-6 Example of Operation in Transmission in Asynchronous Mode (Example with 8-Bit Data, Parity, One Stop Bit) 732 * Serial data reception (asynchronous mode) Figure 16-7 shows a sample flowchart for serial reception. The following procedure should be used for serial data reception. [1] SCI initialization: The RxD pin is automatically designated as the receive data input pin. Initialization Start reception [1] [2] [3] Receive error processing and break detection: Read ORER, PER, and If a receive error occurs, read the [2] FER flags in SSR ORER, PER, and FER flags in SSR to identify the error. After performing the appropriate error Yes processing, ensure that the PERFERORER= 1 ORER, PER, and FER flags are [3] all cleared to 0. Reception cannot No Error processing be resumed if any of these flags (Continued on next page) are set to 1. In the case of a framing error, a break can be detected by reading the value of [4] Read RDRF flag in SSR the input port corresponding to the RxD pin. No RDRF= 1 Yes Read receive data in RDR, and clear RDRF flag in SSR to 0 [4] SCI status check and receive data read : Read SSR and check that RDRF = 1, then read the receive data in RDR and clear the RDRF flag to 0. Transition of the RDRF flag from 0 to 1 can also be identified by an RXI interrupt. [5] No All data received? Yes Clear RE bit in SCR to 0 [5] Serial reception continuation procedure: To continue serial reception, before the stop bit for the current frame is received, read the RDRF flag, read RDR, and clear the RDRF flag to 0. The RDRF flag is cleared automatically when DMAC or DTC is activated by an RXI interrupt and the RDR value is read. Figure 16-7 Sample Serial Reception Data Flowchart 733 [3] Error processing No ORER= 1 Yes Overrun error processing No FER= 1 Yes Yes Break? No Framing error processing Clear RE bit in SCR to 0 No PER= 1 Yes Parity error processing Clear ORER, PER, and FER flags in SSR to 0 Figure 16-7 Sample Serial Reception Data Flowchart (cont) 734 In serial reception, the SCI operates as described below. [1] The SCI monitors the transmission line, and if a 0 stop bit is detected, performs internal synchronization and starts reception. [2] The received data is stored in RSR in LSB-to-MSB order. [3] The parity bit and stop bit are received. After receiving these bits, the SCI carries out the following checks. [a] Parity check: The SCI checks whether the number of 1 bits in the receive data agrees with the parity (even or odd) set in the O/E bit in SMR. [b] Stop bit check: The SCI checks whether the stop bit is 1. If there are two stop bits, only the first is checked. [c] Status check: The SCI checks whether the RDRF flag is 0, indicating that the receive data can be transferred from RSR to RDR. If all the above checks are passed, the RDRF flag is set to 1, and the receive data is stored in RDR. If a receive error* is detected in the error check, the operation is as shown in table 16-11. Note: * Subsequent receive operations cannot be performed when a receive error has occurred. Also note that the RDRF flag is not set to 1 in reception, and so the error flags must be cleared to 0. [4] If the RIE bit in SCR is set to 1 when the RDRF flag changes to 1, a receive data full interrupt (RXI) request is generated. Also, if the RIE bit in SCR is set to 1 when the ORER, PER, or FER flag changes to 1, a receive error interrupt (ERI) request is generated. 735 Table 16-11 Receive Errors and Conditions for Occurrence Receive Error Overrun error Abbreviation ORER Occurrence Condition Data Transfer When the next data reception is Receive data is not completed while the RDRF flag transferred from RSR to in SSR is set to 1 RDR. When the stop bit is 0 Receive data is transferred from RSR to RDR. Framing error Parity error FER PER When the received data differs Receive data is transferred from the parity (even or odd) set from RSR to RDR. in SMR Figure 16-8 shows an example of the operation for reception in asynchronous mode. Start bit 0 D0 D1 Data D7 Parity Stop Start bit bit bit 0/1 1 0 D0 D1 Data D7 Parity Stop bit bit 0/1 0 1 1 Idle state (mark state) RDRF FER RXI interrupt request generated RDR data read and RDRF flag cleared to 0 in RXI interrupt service routine ERI interrupt request generated by framing error 1 frame Figure 16-8 Example of SCI Operation in Reception (Example with 8-Bit Data, Parity, One Stop Bit) 736 16.3.3 Multiprocessor Communication Function The multiprocessor communication function performs serial communication using the multiprocessor format, in which a multiprocessor bit is added to the transfer data, in asynchronous mode. Use of this function enables data transfer to be performed among a number of processors sharing transmission lines. When multiprocessor communication is carried out, each receiving station is addressed by a unique ID code. The serial communication cycle consists of two component cycles: an ID transmission cycle which specifies the receiving station, and a data transmission cycle. The multiprocessor bit is used to differentiate between the ID transmission cycle and the data transmission cycle. The transmitting station first sends the ID of the receiving station with which it wants to perform serial communication as data with a 1 multiprocessor bit added. It then sends transmit data as data with a 0 multiprocessor bit added. The receiving station skips the data until data with a 1 multiprocessor bit is sent. When data with a 1 multiprocessor bit is received, the receiving station compares that data with its own ID. The station whose ID matches then receives the data sent next. Stations whose ID does not match continue to skip the data until data with a 1 multiprocessor bit is again received. In this way, data communication is carried out among a number of processors. Figure 16-9 shows an example of inter-processor communication using the multiprocessor format. Data Transfer Format: There are four data transfer formats. When the multiprocessor format is specified, the parity bit specification is invalid. For details, see table 16-10. Clock: See the section on asynchronous mode. 737 Transmitting station Serial transmission line Receiving station A (ID= 01) Serial data Receiving station B (ID= 02) Receiving station C (ID= 03) Receiving station D (ID= 04) H'01 (MPB= 1) ID transmission cycle= receiving station specification H'AA (MPB= 0) Data transmission cycle= Data transmission to receiving station specified by ID Legend MPB: Multiprocessor bit Figure 16-9 Example of Inter-Processor Communication Using Multiprocessor Format (Transmission of Data H'AA to Receiving Station A) Data Transfer Operations: * Multiprocessor serial data transmission Figure 16-10 shows a sample flowchart for multiprocessor serial data transmission. The following procedure should be used for multiprocessor serial data transmission. 738 Initialization Start transmission [1] [1] SCI initialization: Read TDRE flag in SSR [2] The TxD pin is automatically designated as the transmit data output pin. After the TE bit is set to 1, a frame of 1s is output, and transmission is enabled. [2] SCI status check and transmit data write: Read SSR and check that the TDRE flag is set to 1, then write transmit data to TDR. Set the MPBT bit in SSR to 0 or 1. Finally, clear the TDRE flag to 0. No TDRE= 1 Yes Write transmit data to TDR and set MPBT bit in SSR Clear TDRE flag to 0 No All data transmitted? Yes Read TEND flag in SSR No TEND= 1 Yes No Break output? Yes [3] Serial transmission continuation procedure: To continue serial transmission, be sure to read 1 from the TDRE flag to confirm that writing is [3] possible, then write data to TDR, and then clear the TDRE flag to 0. Checking and clearing of the TDRE flag is automatic when the DMAC* or DTC* is activated by a transmit data empty interrupt (TXI) request, and data is written to TDR. [4] Break output at the end of serial transmission: To output a break in serial transmission, set the port DDR to [4] 1, clear DR to 0, then clear the TE bit in SCR to 0. Note: * DMAC and DTC functions are not available in the H8S/2695. Clear DR to 0 and set DDR to 1 Clear TE bit in SCR to 0 Figure 16-10 Sample Multiprocessor Serial Transmission Flowchart 739 In serial transmission, the SCI operates as described below. [1] The SCI monitors the TDRE flag in SSR, and if is 0, recognizes that data has been written to TDR, and transfers the data from TDR to TSR. [2] After transferring data from TDR to TSR, the SCI sets the TDRE flag to 1 and starts transmission. If the TIE bit in SCR is set to 1 at this time, a transmit data empty interrupt (TXI) is generated. The serial transmit data is sent from the TxD pin in the following order. [a] Start bit: One 0-bit is output. [b] Transmit data: 8-bit or 7-bit data is output in LSB-first order. [c] Multiprocessor bit One multiprocessor bit (MPBT value) is output. [d] Stop bit(s): One or two 1-bits (stop bits) are output. [e] Mark state: 1 is output continuously until the start bit that starts the next transmission is sent. [3] The SCI checks the TDRE flag at the timing for sending the stop bit. If the TDRE flag is cleared to 0, data is transferred from TDR to TSR, the stop bit is sent, and then serial transmission of the next frame is started. If the TDRE flag is set to 1, the TEND flag in SSR is set to 1, the stop bit is sent, and then the mark state is entered in which 1 is output continuously. If the TEIE bit in SCR is set to 1 at this time, a transmission end interrupt (TEI) request is generated. 740 Figure 16-11 shows an example of SCI operation for transmission using the multiprocessor format. Multiprocessor Stop bit bit D7 0/1 1 1 Start bit 0 D0 D1 Data Start bit 0 D0 D1 Data D7 Multiproces- Stop 1 sor bit bit 0/1 1 Idle state (mark state) TDRE TEND TXI interrupt request generated Data written to TDR and TDRE flag cleared to 0 in TXI interrupt service routine TXI interrupt request generated TEI interrupt request generated 1 frame Figure 16-11 Example of SCI Operation in Transmission (Example with 8-Bit Data, Multiprocessor Bit, One Stop Bit) * Multiprocessor serial data reception Figure 16-12 shows a sample flowchart for multiprocessor serial reception. The following procedure should be used for multiprocessor serial data reception. 741 Initialization Start reception [1] [1] SCI initialization: The RxD pin is automatically designated as the receive data input pin. [2] ID reception cycle: Set the MPIE bit in SCR to 1. [3] SCI status check, ID reception and comparison: Read SSR and check that the RDRF flag is set to 1, then read the receive data in RDR and compare it with this station's ID. If the data is not this station's ID, set the MPIE bit to 1 again, and clear the RDRF flag to 0. If the data is this station's ID, clear the RDRF flag to 0. [4] SCI status check and data reception: Read SSR and check that the RDRF flag is set to 1, then read the data in RDR. [5] Receive error processing and break detection: If a receive error occurs, read the ORER and FER flags in SSR to identify the error. After performing the appropriate error processing, ensure that the ORER and FER flags are all cleared to 0. Reception cannot be resumed if either of these flags is set to 1. In the case of a framing error, a break can be detected by reading the RxD pin value. Read MPIE bit in SCR Read ORER and FER flags in SSR [2] Yes FERORER= 1 No Read RDRF flag in SSR No RDRF= 1 Yes Read receive data in RDR No This station's ID? Yes Read ORER and FER flags in SSR Yes FERORER= 1 No Read RDRF flag in SSR [4] No RDRF= 1 Yes Read receive data in RDR No All data received? Yes Clear RE bit in SCR to 0 [5] Error processing (Continued on next page) Figure 16-12 Sample Multiprocessor Serial Reception Flowchart 742 [5] Error processing No ORER= 1 Yes Overrun error processing No FER= 1 Yes Yes Break? No Framing error processing Clear RE bit in SCR to 0 Clear ORER, PER, and FER flags in SSR to 0 Figure 16-12 Sample Multiprocessor Serial Reception Flowchart (cont) 743 Figure 16-13 shows an example of SCI operation for multiprocessor format reception. Start bit 0 D0 D1 Data (ID1) MPB D7 1 Stop bit 1 Start bit 0 D0 D1 Data (Data1) MPB D7 0 Stop bit 1 1 1 Idle state (mark state) MPIE RDRF RDR value MPIE = 0 RXI interrupt request (multiprocessor interrupt) generated RDR data read and RDRF flag cleared to 0 in RXI interrupt service routine ID1 If not this station's ID, RXI interrupt request is MPIE bit is set to 1 not generated, and RDR again retains its state (a) Data does not match station's ID 1 Start bit 0 D0 D1 Data (ID2) MPB D7 1 Stop bit 1 Start bit 0 D0 Data (Data2) MPB D1 D7 0 Stop bit 1 1 Idle state (mark state) MPIE RDRF RDR value ID1 MPIE = 0 RXI interrupt request (multiprocessor interrupt) generated RDR data read and RDRF flag cleared to 0 in RXI interrupt service routine ID2 Matches this station's ID, so reception continues, and data is received in RXI interrupt service routine Data2 MPIE bit set to 1 again (b) Data matches station's ID Figure 16-13 Example of SCI Operation in Reception (Example with 8-Bit Data, Multiprocessor Bit, One Stop Bit) 744 16.3.4 Operation in Clocked Synchronous Mode In clocked synchronous mode, data is transmitted or received in synchronization with clock pulses, making it suitable for high-speed serial communication. Inside the SCI, the transmitter and receiver are independent units, enabling full-duplex communication by use of a common clock. Both the transmitter and the receiver also have a double-buffered structure, so that data can be read or written during transmission or reception, enabling continuous data transfer. Figure 16-14 shows the general format for clocked synchronous serial communication. One unit of transfer data (character or frame) * Serial clock LSB Serial data Don't care Note: * High except in continuous transfer Bit 0 Bit 1 Bit 2 Bit 3 Bit 4 Bit 5 Bit 6 MSB Bit 7 Don't care * Figure 16-14 Data Format in Synchronous Communication In clocked synchronous serial communication, data on the transmission line is output from one falling edge of the serial clock to the next. Data confirmation is guaranteed at the rising edge of the serial clock. In clocked serial communication, one character consists of data output starting with the LSB and ending with the MSB. After the MSB is output, the transmission line holds the MSB state. In clocked synchronous mode, the SCI receives data in synchronization with the rising edge of the serial clock. Data Transfer Format: A fixed 8-bit data format is used. No parity or multiprocessor bits are added. Clock: Either an internal clock generated by the on-chip baud rate generator or an external serial clock input at the SCK pin can be selected, according to the setting of the C/A bit in SMR and the CKE1 and CKE0 bits in SCR. For details of SCI clock source selection, see table 16-9. When the SCI is operated on an internal clock, the serial clock is output from the SCK pin. 745 Eight serial clock pulses are output in the transfer of one character, and when no transfer is performed the clock is fixed high. When only receive operations are performed, however, the serial clock is output until an overrun error occurs or the RE bit is cleared to 0. If you want to perform receive operations in units of one character, you should select an external clock as the clock source. Data Transfer Operations: * SCI initialization (clocked synchronous mode) Before transmitting and receiving data, you should first clear the TE and RE bits in SCR to 0, then initialize the SCI as described below. When the operating mode, transfer format, etc., is changed, the TE and RE bits must be cleared to 0 before making the change using the following procedure. When the TE bit is cleared to 0, the TDRE flag is set to 1 and TSR is initialized. Note that clearing the RE bit to 0 does not change the contents of the RDRF, PER, FER, and ORER flags, or the contents of RDR. Figure 16-15 shows a sample SCI initialization flowchart. Start initialization [1] Set the clock selection in SCR. Be sure to clear bits RIE, TIE, TEIE, MPIE, TE, and RE, to 0. [2] Set the data transfer format in SMR and SCMR. Clear TE and RE bits in SCR to 0 Set CKE1 and CKE0 bits in SCR (TE, RE bits 0) Set data transfer format in SMR and SCMR Set value in BRR Wait [1] [3] Write a value corresponding to the bit rate to BRR. Not necessary if an external clock is used. [4] Wait at least one bit interval, then set the TE bit or RE bit in SCR to 1. Also set the RIE, TIE, TEIE, and MPIE bits. Setting the TE and RE bits enables the TxD and RxD pins to be used. [2] [3] No 1-bit interval elapsed? Yes Set TE and RE bits in SCR to 1, and set RIE, TIE, TEIE, and MPIE bits [4] Note: In simultaneous transmit and receive operations, the TE and RE bits should both be cleared to 0 or set to 1 simultaneously. Figure 16-15 Sample SCI Initialization Flowchart 746 * Serial data transmission (clocked synchronous mode) Figure 16-16 shows a sample flowchart for serial transmission. The following procedure should be used for serial data transmission. Initialization Start transmission [1] [1] SCI initialization: The TxD pin is automatically designated as the transmit data output pin. [2] SCI status check and transmit data write: Read SSR and check that the TDRE flag is set to 1, then write transmit data to TDR and clear the TDRE flag to 0. [3] Serial transmission continuation procedure: To continue serial transmission, be sure to read 1 from the TDRE flag to confirm that writing is possible, then write data to TDR, and then clear the TDRE flag to 0. Checking and clearing of the TDRE flag is automatic when the DMAC* or DTC* is activated by a transmit data empty interrupt (TXI) request and data is written to TDR. Read TDRE flag in SSR [2] No TDRE= 1 Yes Write transmit data to TDR and clear TDRE flag in SSR to 0 No All data transmitted? Yes [3] Read TEND flag in SSR No TEND= 1 Yes Note: * DMAC and DTC functions are not available in the H8S/2695. Clear TE bit in SCR to 0 Figure 16-16 Sample Serial Transmission Flowchart 747 In serial transmission, the SCI operates as described below. [1] The SCI monitors the TDRE flag in SSR, and if is 0, recognizes that data has been written to TDR, and transfers the data from TDR to TSR. [2] After transferring data from TDR to TSR, the SCI sets the TDRE flag to 1 and starts transmission. If the TIE bit in SCR is set to 1 at this time, a transmit data empty interrupt (TXI) is generated. When clock output mode has been set, the SCI outputs 8 serial clock pulses. When use of an external clock has been specified, data is output synchronized with the input clock. The serial transmit data is sent from the TxD pin starting with the LSB (bit 0) and ending with the MSB (bit 7). [3] The SCI checks the TDRE flag at the timing for sending the MSB (bit 7). If the TDRE flag is cleared to 0, data is transferred from TDR to TSR, and serial transmission of the next frame is started. If the TDRE flag is set to 1, the TEND flag in SSR is set to 1, the MSB (bit 7) is sent, and the TxD pin maintains its state. If the TEIE bit in SCR is set to 1 at this time, a TEI interrupt request is generated. [4] After completion of serial transmission, the SCK pin is fixed high. Figure 16-17 shows an example of SCI operation in transmission. Transfer direction Serial clock Serial data Bit 0 Bit 1 Bit 7 Bit 0 Bit 1 Bit 6 Bit 7 TDRE TEND TXI interrupt request generated TXI interrupt Data written to TDR request generated and TDRE flag cleared to 0 in TXI interrupt service routine 1 frame TEI interrupt request generated Figure 16-17 Example of SCI Operation in Transmission 748 * Serial data reception (clocked synchronous mode) Figure 16-18 shows a sample flowchart for serial reception. The following procedure should be used for serial data reception. When changing the operating mode from asynchronous to clocked synchronous, be sure to check that the ORER, PER, and FER flags are all cleared to 0. The RDRF flag will not be set if the FER or PER flag is set to 1, and neither transmit nor receive operations will be possible. 749 Initialization Start reception [1] [1] SCI initialization: The RxD pin is automatically designated as the receive data input pin. Read ORER flag in SSR Yes ORER= 1 No [2] [3] Error processing (Continued below) [2] [3] Receive error processing: If a receive error occurs, read the ORER flag in SSR , and after performing the appropriate error processing, clear the ORER flag to 0. Transfer cannot be resumed if the ORER flag is set to 1. [4] SCI status check and receive data read: Read SSR and check that the RDRF flag is set to 1, then read the receive data in RDR and clear the RDRF flag to 0. Transition of the RDRF flag from 0 to 1 can also be identified by an RXI interrupt. [5] Serial reception continuation procedure: To continue serial reception, before the MSB (bit 7) of the current frame is received, finish reading the RDRF flag, reading RDR, and clearing the RDRF flag to 0. The RDRF flag is cleared automatically when the DMAC* or DTC* is activated by a receive data full interrupt (RXI) request and the RDR value is read. Note: * DMAC and DTC functions are not available in the H8S/2695. Read RDRF flag in SSR [4] No RDRF= 1 Yes Read receive data in RDR, and clear RDRF flag in SSR to 0 No All data received? Yes Clear RE bit in SCR to 0 Error processing Overrun error processing Clear ORER flag in SSR to 0 Figure 16-18 Sample Serial Reception Flowchart 750 In serial reception, the SCI operates as described below. [1] The SCI performs internal initialization in synchronization with serial clock input or output. [2] The received data is stored in RSR in LSB-to-MSB order. After reception, the SCI checks whether the RDRF flag is 0 and the receive data can be transferred from RSR to RDR. If this check is passed, the RDRF flag is set to 1, and the receive data is stored in RDR. If a receive error is detected in the error check, the operation is as shown in table 16-11. Neither transmit nor receive operations can be performed subsequently when a receive error has been found in the error check. [3] If the RIE bit in SCR is set to 1 when the RDRF flag changes to 1, a receive data full interrupt (RXI) request is generated. Also, if the RIE bit in SCR is set to 1 when the ORER flag changes to 1, a receive error interrupt (ERI) request is generated. Figure 16-19 shows an example of SCI operation in reception. Serial clock Serial data RDRF ORER RXI interrupt request generated RDR data read and RDRF flag cleared to 0 in RXI interrupt service routine 1 frame RXI interrupt request generated ERI interrupt request generated by overrun error Bit 7 Bit 0 Bit 7 Bit 0 Bit 1 Bit 6 Bit 7 Figure 16-19 Example of SCI Operation in Reception * Simultaneous serial data transmission and reception (clocked synchronous mode) Figure 16-20 shows a sample flowchart for simultaneous serial transmit and receive operations. The following procedure should be used for simultaneous serial data transmit and receive operations. 751 Initialization Start transmission/reception [1] [1] SCI initialization: The TxD pin is designated as the transmit data output pin, and the RxD pin is designated as the receive data input pin, enabling simultaneous transmit and receive operations. Read TDRE flag in SSR No TDRE= 1 Yes Write transmit data to TDR and clear TDRE flag in SSR to 0 [2] [2] SCI status check and transmit data write: Read SSR and check that the TDRE flag is set to 1, then write transmit data to TDR and clear the TDRE flag to 0. Transition of the TDRE flag from 0 to 1 can also be identified by a TXI interrupt. [3] Receive error processing: Read ORER flag in SSR Yes [3] Error processing ORER= 1 No If a receive error occurs, read the ORER flag in SSR, and after performing the appropriate error processing, clear the ORER flag to 0. Transmission/reception cannot be resumed if the ORER flag is set to 1. [4] SCI status check and receive data read: Read SSR and check that the RDRF flag is set to 1, then read the receive data in RDR and clear the RDRF flag to 0. Transition of the RDRF flag from 0 to 1 can also be identified by an RXI interrupt. Read RDRF flag in SSR No RDRF= 1 Yes Read receive data in RDR, and clear RDRF flag in SSR to 0 [4] [5] Serial transmission/reception continuation procedure: To continue serial transmission/ reception, before the MSB (bit 7) of the current frame is received, finish reading the RDRF flag, reading RDR, and clearing the RDRF flag to 0. Also, before the MSB (bit 7) of the current frame is transmitted, read 1 from the TDRE flag to confirm that writing is possible. Then write data to TDR and clear the TDRE flag to 0. Checking and clearing of the TDRE flag is automatic when the DTC* is activated by a transmit data empty interrupt (TXI) request and data is written to TDR. Also, the RDRF flag is cleared automatically when the DMAC* or DTC* is activated by a receive data full interrupt (RXI) request and the RDR value is read. No All data received? Yes [5] Clear TE and RE bits in SCR to 0 * DMAC and DTC functions are not available in the H8S/2695. Figure 16-20 Sample Flowchart of Simultaneous Serial Transmit and Receive Operations 752 16.3.5 IrDA Operation Figure 16-21 is a block diagram of the IrDA. When the IrE bit of IrCR is set to enable the IrDA function, the TxD0/RxD0 signals of SCI channel 0 are encoded and decoded with waveforms conforming to the IrDA standard version 1.0 (IrTxD/IrRxD pins). Connecting these to an infrared transmitter/receiver allows the realization of infrared transmission and reception conforming to an IrDA standard version 1.0 system. In an IrDA standard version 1.0 system, communication is initiated at a transfer rate of 9600 bps. The rate is subsequently varied as required. The IrDA interface of this LSI does not have an internal function for automatically varying the transfer rate. The transfer rate must be varied using software. IrDA SCI0 TxD0/IrTxD Pulse encoder TxD RxD RxD0/IrRxD Pulse decoder IrCR Figure 16-21 IrDA Block Diagram (1) Transmission When transmitting, the signal (UART frame) output from the SCI is converted by the IrDA interface into an IR frame (see figure 16-22). When the value of the serial data is "0", a High pulse that has 3/16ths the width of the bit rate (the duration of 1 bit width) is output (default). Note that the High pulse can also be changed by altering the settings of IrCR IrCKS2 to IrCKS0. As per the standard, the High pulse width is a minimum of 1.41 s, the maximum is (3/16 + 2.5%) x bit rate, or (3/16 x bit rate) + 1.08 s. With a 20MHz system clock o, the minimum High pulse width can be set to 1.6 s, which is greater than the 1.41 s required by the standard. 753 When the value of the serial data is "1", no pulse is output. UART frame Start bit 0 1 0 1 0 Data Start bit 1 1 0 1 0 Transmitting Receiving IR frame Start bit 0 1 0 1 0 Data Start bit 1 1 0 1 0 Bit cycle Pulse width = 1.6 s to 3/16ths bit cycle Figure 16-22 IrDA Transmit and Receive Operations (2) Receiving When receiving, the IR frame data is converted into UART frames by the IrDA interface and input to the SCI. When a High pulse is detected, "0" is output. If there is no pulse for the duration of 1 bit, "1" is output. Pulses of less than the minimum pulse width of 1.41 s are also recognized as "0" data. (3) Selecting High Pulse Width Table 16-12 shows the settings of IrCKS2 to IrCKS0 (for the minimum pulse width), at various LSI operating frequencies, and various bit rates to set the pulse width when transmitting with a pulse width less than 3/16ths of the bit rate. 754 Table 16-12 Setting Bits IrCKS2 to IrCKS0 Bit Rate (bps) (Upper Row) / Bit Cycle x 3/16 (s) (Lower Row) 2400 Operating Frequency (MHz) 78.13 2 2.097152 2.4576 3 3.6864 4.9152 5 6 6.144 7.3728 8 9.8304 10 12 12.288 14 14.7456 16 16.9344 17.2032 18 19.6608 20 25 010 010 010 011 011 011 011 100 100 100 100 100 100 101 101 101 101 101 101 101 101 101 101 110 9600 19.53 010 010 010 011 011 011 011 100 100 100 100 100 100 101 101 101 101 101 101 101 101 101 101 110 19200 9.77 010 010 010 011 011 011 011 100 100 100 100 100 100 101 101 101 101 101 101 101 101 101 101 110 38400 4.88 010 010 010 011 011 011 011 100 100 100 100 100 100 101 101 101 101 101 101 101 101 101 101 110 57600 3.26 010 010 010 011 011 011 011 100 100 100 100 100 100 101 101 101 101 101 101 101 101 101 101 110 115200 1.63 -- -- -- -- 011 011 011 100 100 100 100 100 100 101 101 101 101 101 101 101 101 101 101 110 Legend --: SCI cannot be set to this bit rate. 755 16.4 SCI Interrupts The SCI has four interrupt sources: the transmit-end interrupt (TEI) request, receive-error interrupt (ERI) request, receive-data-full interrupt (RXI) request, and transmit-data-empty interrupt (TXI) request. Table 16-13 shows the interrupt sources and their relative priorities. Individual interrupt sources can be enabled or disabled with the TIE, RIE, and TEIE bits in the SCR. Each kind of interrupt request is sent to the interrupt controller independently. When the TDRE flag in SSR is set to 1, a TXI interrupt request is generated. When the TEND flag in SSR is set to 1, a TEI interrupt request is generated. A TXI interrupt can activate the DMAC* or DTC* to perform data transfer. The TDRE flag is cleared to 0 automatically when data transfer is performed by the DMAC * or DTC*. The DMAC* or DTC* cannot be activated by a TEI interrupt request. When the RDRF flag in SSR is set to 1, an RXI interrupt request is generated. When the ORER, PER, or FER flag in SSR is set to 1, an ERI interrupt request is generated. An RXI interrupt can activate the DMAC* or DTC* to perform data transfer. The RDRF flag is cleared to 0 automatically when data transfer is performed by the DMAC* or DTC*. The DMAC* or DTC* cannot be activated by an ERI interrupt request. Note that the DMAC* cannot be activated by interrupts of SCI channels 2 to 4. Note: * DMAC and DTC functions are not available in the H8S/2695. 756 Table 16-13 SCI Interrupt Sources Channel 0 Interrupt Source Description ERI RXI TXI TEI 1 ERI RXI TXI TEI 2 ERI RXI TXI TEI 3 ERI RXI TXI TEI 4 ERI RXI TXI TEI Interrupt due to receive error (ORER, FER, or PER) Interrupt due to receive data full state (RDRF) Interrupt due to transmit data empty state (TDRE) Interrupt due to transmission end (TEND) Interrupt due to receive error (ORER, FER, or PER) Interrupt due to receive data full state (RDRF) Interrupt due to transmit data empty state (TDRE) Interrupt due to transmission end (TEND) Interrupt due to receive error (ORER, FER, or PER) Interrupt due to receive data full state (RDRF) Interrupt due to transmit data empty state (TDRE) Interrupt due to transmission end (TEND) Interrupt due to receive error (ORER, FER, or PER) Interrupt due to receive data full state (RDRF) Interrupt due to transmit data empty state (TDRE) Interrupt due to transmission end (TEND) Interrupt due to receive error (ORER, FER, or PER) Interrupt due to receive data full state (RDRF) Interrupt due to transmit data empty state (TDRE) Interrupt due to transmission end (TEND) DTC*1 Activation DMAC*1 Activation Priority*2 High Not possible Not possible Possible Possible Possible Possible Not possible Not possible Not possible Not possible Possible Possible Possible Possible Not possible Not possible Not possible Not possible Possible Possible Not possible Not possible Not possible Not possible Not possible Not possible Possible Possible Not possible Not possible Not possible Not possible Not possible Not possible Possible Possible Not possible Not possible Low Not possible Not possible Notes: *1 DMAC and DTC functions are not available in the H8S/2695. *2 This table shows the initial state immediately after a reset. Relative priorities among channels can be changed by means of the interrupt controller. 757 A TEI interrupt is requested when the TEND flag is set to 1 while the TEIE bit is set to 1. The TEND flag is cleared at the same time as the TDRE flag. Consequently, if a TEI interrupt and a TXI interrupt are requested simultaneously, the TXI interrupt may have priority for acceptance, with the result that the TDRE and TEND flags are cleared. Note that the TEI interrupt will not be accepted in this case. 16.5 Usage Notes The following points should be noted when using the SCI. Relation between Writes to TDR and the TDRE Flag The TDRE flag in SSR is a status flag that indicates that transmit data has been transferred from TDR to TSR. When the SCI transfers data from TDR to TSR, the TDRE flag is set to 1. Data can be written to TDR regardless of the state of the TDRE flag. However, if new data is written to TDR when the TDRE flag is cleared to 0, the data stored in TDR will be lost since it has not yet been transferred to TSR. It is therefore essential to check that the TDRE flag is set to 1 before writing transmit data to TDR. Operation when Multiple Receive Errors Occur Simultaneously If a number of receive errors occur at the same time, the state of the status flags in SSR is as shown in table 16-14. If there is an overrun error, data is not transferred from RSR to RDR, and the receive data is lost. Table 16-14 State of SSR Status Flags and Transfer of Receive Data SSR Status Flags RDRF 1 0 0 1 1 0 1 Notes: ORER 1 0 0 1 1 0 1 FER 0 1 0 1 0 1 1 PER 0 0 1 0 1 1 1 X X X Receive Data Transfer RSR to RDR X Receive Error Status Overrun error Framing error Parity error Overrun error + framing error Overrun error + parity error Framing error + parity error Overrun error + framing error + parity error : Receive data is transferred from RSR to RDR. X: Receive data is not transferred from RSR to RDR. 758 Break Detection and Processing (Asynchronous Mode Only): When framing error (FER) detection is performed, a break can be detected by reading the RxD pin value directly. In a break, the input from the RxD pin becomes all 0s, and so the FER flag is set, and the parity error flag (PER) may also be set. Note that, since the SCI continues the receive operation after receiving a break, even if the FER flag is cleared to 0, it will be set to 1 again. Sending a Break (Asynchronous Mode Only): The TxD pin has a dual function as an I/O port whose direction (input or output) is determined by DR and DDR. This can be used to send a break. Between serial transmission initialization and setting of the TE bit to 1, the mark state is replaced by the value of DR (the pin does not function as the TxD pin until the TE bit is set to 1). Consequently, DDR and DR for the port corresponding to the TxD pin are first set to 1. To send a break during serial transmission, first clear DR to 0, then clear the TE bit to 0. When the TE bit is cleared to 0, the transmitter is initialized regardless of the current transmission state, the TxD pin becomes an I/O port, and 0 is output from the TxD pin. Receive Error Flags and Transmit Operations (Clocked Synchronous Mode Only): Transmission cannot be started when a receive error flag (ORER, PER, or FER) is set to 1, even if the TDRE flag is cleared to 0. Be sure to clear the receive error flags to 0 before starting transmission. Note also that receive error flags cannot be cleared to 0 even if the RE bit is cleared to 0. Receive Data Sampling Timing and Reception Margin in Asynchronous Mode: In asynchronous mode, the SCI operates on a basic clock with a frequency of 16 times the transfer rate. In reception, the SCI samples the falling edge of the start bit using the basic clock, and performs internal synchronization. Receive data is latched internally at the rising edge of the 8th pulse of the basic clock. This is illustrated in figure 16-23. 759 16 clocks 8 clocks 0 Internal basic clock 7 15 0 7 15 0 Receive data (RxD) Synchronization sampling timing Start bit D0 D1 Data sampling timing Figure 16-23 Receive Data Sampling Timing in Asynchronous Mode Thus the reception margin in asynchronous mode is given by formula (1) below. M = | (0.5 - 1 2N ) - (L - 0.5) F - | D - 0.5 | N (1 + F) | x 100% ... Formula (1) Where M N D L F : Reception margin (%) : Ratio of bit rate to clock (N = 16) : Clock duty (D = 0 to 1.0) : Frame length (L = 9 to 12) : Absolute value of clock rate deviation Assuming values of F = 0 and D = 0.5 in formula (1), a reception margin of 46.875% is given by formula (2) below. When D = 0.5 and F = 0, M = (0.5 - = 46.875% 1 2 x 16 ) x 100% ... Formula (2) However, this is only the computed value, and a margin of 20% to 30% should be allowed in system design. 760 Restrictions on Use of DMAC * or DTC * * When an external clock source is used as the serial clock, the transmit clock should not be input until at least 5 o clock cycles after TDR is updated by the DMAC or DTC. Misoperation may occur if the transmit clock is input within 4 o clocks after TDR is updated. (Figure 16-24) * When RDR is read by the DMAC * or DTC*, be sure to set the activation source to the relevant SCI reception end interrupt (RXI). SCK t TDRE LSB Serial data D0 D1 D2 D3 D4 D5 D6 D7 Note: When operating on an external clock, set t >4 clocks. Figure 16-24 Example of Clocked Synchronous Transmission by DTC* Note: * DMAC and DTC functions are not available in the H8S/2695. Operation in Case of Mode Transition * Transmission Operation should be stopped (by clearing TE, TIE, and TEIE to 0) before making a module stop mode, software standby mode, watch mode, subactive mode, or subsleep mode transition. TSR, TDR, and SSR are reset. The output pin states in module stop mode, software standby mode, watch mode, subactive mode, or subsleep mode depend on the port settings, and becomes high-level output after the relevant mode is cleared. If a transition is made during transmission, the data being transmitted will be undefined. When transmitting without changing the transmit mode after the relevant mode is cleared, transmission can be started by setting TE to 1 again, and performing the following sequence: SSR read -> TDR write -> TDRE clearance. To transmit with a different transmit mode after clearing the relevant mode, the procedure must be started again from initialization. Figure 16-25 shows a sample flowchart for mode transition during transmission. Port pin states are shown in figures 16-26 and 16-27. Operation should also be stopped (by clearing TE, TIE, and TEIE to 0) before making a transition from transmission by DTC transfer to module stop mode, software standby mode, watch mode, subactive mode, or subsleep mode transition. To perform transmission with the DTC after the relevant mode is cleared, setting TE and TIE to 1 will set the TXI flag and start DTC transmission. 761 * Reception Receive operation should be stopped (by clearing RE to 0) before making a module stop mode, software standby mode, watch mode, subactive mode, or subsleep mode transition. RSR, RDR, and SSR are reset. If a transition is made without stopping operation, the data being received will be invalid. To continue receiving without changing the reception mode after the relevant mode is cleared, set RE to 1 before starting reception. To receive with a different receive mode, the procedure must be started again from initialization. Figure 16-28 shows a sample flowchart for mode transition during reception. All data transmitted? Yes Read TEND flag in SSR No [1] TEND = 1 Yes TE= 0 [2] No [1] Data being transmitted is interrupted. After exiting software standby mode, etc., normal CPU transmission is possible by setting TE to 1, reading SSR, writing TDR, and clearing TDRE to 0, but note that if the DTC* has been activated, the remaining data in DTCRAM will be transmitted when TE and TIE are set to 1. [2] If TIE and TEIE are set to 1, clear them to 0 in the same way. Transition to software standby mode, etc. Exit from software standby mode, etc. Change operating mode? Yes Initialization [3] [3] Includes module stop mode, watch mode, subactive mode, and subsleep mode. Note: * The DTC function is not available in the H8S/2695. No TE= 1 Figure 16-25 Sample Flowchart for Mode Transition during Transmission 762 Start of transmission End of transmission Transition to software standby Exit from software standby TE bit SCK output pin Port input/output TxD output pin Port input/output Port High output Start SCI TxD output Stop Port input/output Port High output SCI TxD output Figure 16-26 Asynchronous Transmission Using Internal Clock Transition to software standby Exit from software standby Start of transmission End of transmission TE bit SCK output pin Port input/output TxD output pin Port input/output Port Marking output SCI TxD output Last TxD bit held Port input/output Port High output* SCI TxD output Note: * Initialized by software standby. Figure 16-27 Synchronous Transmission Using Internal Clock 763 RDRF= 1 Yes Read receive data in RDR RE= 0 Transition to software standby mode, etc. Exit from software standby mode, etc. Change operating mode? Yes Initialization [2] [2] Includes module stop mode, watch mode, subactive mode, and subsleep mode. No RE= 1 Figure 16-28 Sample Flowchart for Mode Transition during Reception 764 Switching from SCK Pin Function to Port Pin Function: * Problem in Operation: When switching the SCK pin to the output function while DDR and DR are set to 1 and clock synchronous SCI clock output is being used, low-level output occurs for one half-cycle, followed by port output. When switching to the port function by making the following settings while DDR, DR, and C/A are set to 1 and CKE1, CKE0, and TE are set to 0, low-level output occurs for one halfcycle. 1. End of serial data transmission 2. TE bit = 0 3. C/A bit = 0 ... switchover to port output 4. Occurrence of low-level output (see figure 16-29) Half-cycle low-level output SCK/port 1. End of transmission Data TE C/A CKE1 CKE0 Bit 6 Bit 7 2.TE= 0 4. Low-level output 3.C/A = 0 Figure 16-29 Operation when Switching from SCK Pin Function to Port Pin Function 765 * Sample Procedure for Avoiding Low-Level Output: As this sample procedure temporarily places the SCK pin in the input state, the SCK/port pin should be pulled up beforehand with an external circuit. With DDR = 1, DR = 1, C/A = 1, CKE1 = 0, CKE0 = 0, and TE = 1, make the following settings in the order shown. 1. End of serial data transmission 2. TE bit = 0 3. CKE1 bit = 1 4. C/A bit = 0 ... switchover to port output 5. CKE1 bit = 0 High-level output TE SCK/port 1. End of transmission Data TE C/A 3.CKE1= 1 CKE1 CKE0 5.CKE1= 0 Bit 6 Bit 7 2.TE= 0 4.C/A = 0 Figure 16-30 Operation when Switching from SCK Pin Function to Port Pin Function (Example of Preventing Low-Level Output) 766 Section 17 Smart Card Interface 17.1 Overview SCI supports an IC card (Smart Card) interface conforming to ISO/IEC 7816-3 (Identification Card) as a serial communication interface extension function. Switching between the normal serial communication interface and the Smart Card interface is carried out by means of a register setting. 17.1.1 Features Features of the Smart Card interface supported by the H8S/2633 Series are as follows. * Asynchronous mode Data length: 8 bits Parity bit generation and checking Transmission of error signal (parity error) in receive mode Error signal detection and automatic data retransmission in transmit mode Direct convention and inverse convention both supported * On-chip baud rate generator allows any bit rate to be selected * Three interrupt sources Three interrupt sources (transmit data empty, receive data full, and transmit/receive error) that can issue requests independently The transmit data empty interrupt and receive data full interrupt can activate the DMA controller (DMAC)* or data transfer controller (DTC)* to execute data transfer Note: * DMAC and DTC functions are not available in the H8S/2695. 767 17.1.2 Block Diagram Figure 17-1 shows a block diagram of the Smart Card interface. Bus interface Module data bus Internal data bus RDR TDR RxD RSR TSR SCMR SSR SCR SMR Transmission/ reception control BRR o Baud rate generator o/4 o/16 o/64 Clock TxD Parity generation Parity check SCK TXI RXI ERI Legend SCMR : Smart Card mode register RSR : Receive shift register RDR : Receive data register TSR : Transmit shift register TDR : Transmit data register SMR : Serial mode register SCR : Serial control register SSR : Serial status register BRR : Bit rate register Figure 17-1 Block Diagram of Smart Card Interface 768 17.1.3 Pin Configuration Table 17-1 shows the Smart Card interface pin configuration. Table 17-1 Smart Card Interface Pins Channel 0 Pin Name Serial clock pin 0 Receive data pin 0 Transmit data pin 0 1 Serial clock pin 1 Receive data pin 1 Transmit data pin 1 2 Serial clock pin 2 Receive data pin 2 Transmit data pin 2 3 Serial clock pin 3 Receive data pin 3 Transmit data pin 3 4 Serial clock pin 4 Receive data pin 4 Transmit data pin 4 Symbol SCK0 RxD0 TxD0 SCK1 RxD1 TxD1 SCK2 RxD2 TxD2 SCK3 RxD3 TxD3 SCK4 RxD4 TxD4 I/O I/O Input Output I/O Input Output I/O Input Output I/O Input Output I/O Input Output Function SCI0 clock input/output SCI0 receive data input SCI0 transmit data output SCI1 clock input/output SCI1 receive data input SCI1 transmit data output SCI2 clock input/output SCI2 receive data input SCI2 transmit data output SCI3 clock input/output SCI3 receive data input SCI3 transmit data output SCI4 clock input/output SCI4 receive data input SCI4 transmit data output 769 17.1.4 Register Configuration Table 17-2 shows the registers used by the Smart Card interface. Details of BRR, TDR, RDR, and MSTPCR are the same as for the normal SCI function: see the register descriptions in section 16, Serial Communication Interface (SCI, IrDA). Table 17-2 Smart Card Interface Registers Channel 0 Name Serial mode register 0 Bit rate register 0 Serial control register 0 Transmit data register 0 Serial status register 0 Receive data register 0 Smart card mode register 0 1 Serial mode register 1 Bit rate register 1 Serial control register 1 Transmit data register 1 Serial status register 1 Receive data register 1 Smart card mode register 1 2 Serial mode register 2 Bit rate register 2 Serial control register 2 Transmit data register 2 Serial status register 2 Receive data register 2 Smart card mode register 2 Abbreviation SMR0 BRR0 SCR0 TDR0 SSR0 RDR0 SCMR0 SMR1 BRR1 SCR1 TDR1 SSR1 RDR1 SCMR1 SMR2 BRR2 SCR2 TDR2 SSR2 RDR2 SCMR2 R/W R/W R/W R/W R/W R/(W)* R R/W R/W R/W R/W R/W R/(W)* R R/W R/W R/W R/W R/W R/(W)* R R/W 2 2 2 Initial Value H'00 H'FF H'00 H'FF H'84 H'00 H'F2 H'00 H'FF H'00 H'FF H'84 H'00 H'F2 H'00 H'FF H'00 H'FF H'84 H'00 H'F2 Address* 1 H'FF78 H'FF79 H'FF7A H'FF7B H'FF7C H'FF7D H'FF7E H'FF80 H'FF81 H'FF82 H'FF83 H'FF84 H'FF85 H'FF86 H'FF88 H'FF89 H'FF8A H'FF8B H'FF8C H'FF8D H'FF8E 770 Channel 3 Name Serial mode register 3 Bit rate register 3 Serial control register 3 Transmit data register 3 Serial status register 3 Receive data register 3 Smart card mode register 3 Abbreviation SMR3 BRR3 SCR3 TDR3 SSR3 RDR3 SCMR3 SMR4 BRR4 SCR4 TDR4 SSR4 RDR4 SCMR4 MSTPCRB MSTPCRC R/W R/W R/W R/W R/W R/(W)* R R/W R/W R/W R/W R/W R/(W)* R R/W R/W R/W 2 2 Initial Value H'00 H'FF H'00 H'FF H'84 H'00 H'F2 H'00 H'FF H'00 H'FF H'84 H'00 H'F2 H'FF H'FF Address* 1 H'FDD0 H'FDD1 H'FDD2 H'FDD3 H'FDD4 H'FDD5 H'FDD6 H'FDD8 H'FDD9 H'FDDA H'FDDB H'FDDC H'FDDD H'FDDE H'FDE9 H'FDEA 4 Serial mode register 4 Bit rate register 4 Serial control register 4 Transmit data register 4 Serial status register 4 Receive data register 4 Smart card mode register 4 All Module stop control register B, C Notes: *1 Lower 16 bits of the address. *2 Can only be written with 0 for flag clearing. 771 17.2 Register Descriptions Registers added with the Smart Card interface and bits for which the function changes are described here. 17.2.1 Bit Smart Card Mode Register (SCMR) : 7 -- 6 -- 1 -- 5 -- 1 -- 4 -- 1 -- 3 SDIR 0 R/W 2 SINV 0 R/W 1 -- 1 -- 0 SMIF 0 R/W Initial value : R/W : 1 -- SCMR is an 8-bit readable/writable register that selects the Smart Card interface function. SCMR is initialized to H'F2 by a reset and in hardware standby mode. Bits 7 to 4--Reserved: These bits are always read as 1 and cannot be modified. Bit 3--Smart Card Data Transfer Direction (SDIR): Selects the serial/parallel conversion format. Bit 3 SDIR 0 Description TDR contents are transmitted LSB-first Receive data is stored in RDR LSB-first 1 TDR contents are transmitted MSB-first Receive data is stored in RDR MSB-first (Initial value) 772 Bit 2--Smart Card Data Invert (SINV): Specifies inversion of the data logic level. This function is used together with the SDIR bit for communication with an inverse convention card. The SINV bit does not affect the logic level of the parity bit. For parity-related setting procedures, see section 17.3.4, Register Settings. Bit 2 SINV 0 Description TDR contents are transmitted as they are Receive data is stored as it is in RDR 1 TDR contents are inverted before being transmitted Receive data is stored in inverted form in RDR (Initial value) Bit 1--Reserved: This bit is always read as 1 and cannot be modified. Bit 0--Smart Card Interface Mode Select (SMIF): Enables or disables the Smart Card interface function. Bit 0 SMIF 0 1 Description Smart Card interface function is disabled Smart Card interface function is enabled (Initial value) 773 17.2.2 Bit Serial Status Register (SSR) : 7 TDRE 6 RDRF 0 R/(W)* 5 ORER 0 R/(W)* 4 ERS 0 R/(W)* 3 PER 0 R/(W)* 2 TEND 1 R 1 MPB 0 R 0 MPBT 0 R/W Initial value : R/W : 1 R/(W)* Note: * Only 0 can be written, to clear these flags. Bit 4 of SSR has a different function in Smart Card interface mode. Coupled with this, the setting conditions for bit 2, TEND, are also different. Bits 7 to 5--Operate in the same way as for the normal SCI. For details, see section 16.2.7, Serial Status Register (SSR). Bit 4--Error Signal Status (ERS): In Smart Card interface mode, bit 4 indicates the status of the error signal sent back from the receiving end in transmission. Framing errors are not detected in Smart Card interface mode. Bit 4 ERS 0 Description Normal reception, with no error signal [Clearing conditions] * * 1 Upon reset, and in standby mode or module stop mode When 0 is written to ERS after reading ERS = 1 (Initial value) Error signal sent from receiver indicating detection of parity error [Setting condition] When the low level of the error signal is sampled Note: Clearing the TE bit in SCR to 0 does not affect the ERS flag, which retains its previous state. 774 Bits 3 to 0--Operate in the same way as for the normal SCI. For details, see section 16.2.7, Serial Status Register (SSR). However, the setting conditions for the TEND bit, are as shown below. Bit 2 TEND 0 Description Transmission is in progress [Clearing conditions] * * 1 When 0 is written to TDRE after reading TDRE = 1 When the DMAC* or DTC* is activated by a TXI interrupt and write data to TDR (Initial value) Transmission has ended [Setting conditions] * * * * * * Upon reset, and in standby mode or module stop mode When the TE bit in SCR is 0 and the ERS bit is also 0 When TDRE = 1 and ERS = 0 (normal transmission) 2.5 etu after transmission of a 1-byte serial character when GM = 0 and BLK = 0 When TDRE = 1 and ERS = 0 (normal transmission) 1.5 etu after transmission of a 1-byte serial character when GM = 0 and BLK = 1 When TDRE = 1 and ERS = 0 (normal transmission) 1.0 etu after transmission of a 1-byte serial character when GM = 1 and BLK = 0 When TDRE = 1 and ERS = 0 (normal transmission) 1.0 etu after transmission of a 1-byte serial character when GM = 1 and BLK = 1 Notes: etu: Elementary Time Unit (time for transfer of 1 bit) * DMAC and DTC functions are not available in the H8S/2695. 775 17.2.3 Bit Serial Mode Register (SMR) : 7 GM 6 BLK 0 R/W 5 PE 0 R/W 4 O/E 0 R/W 3 BCP1 0 R/W 2 BCP0 0 R/W 1 CKS1 0 R/W 0 CKS0 0 R/W Initial value : R/W : 0 R/W Note: When the smart card interface is used, be sure to make the 1 setting shown for bit 5. The function of bits 7, 6, 3, and 2 of SMR changes in Smart Card interface mode. Bit 7--GSM Mode (GM): Sets the smart card interface function to GSM mode. This bit is cleared to 0 when the normal smart card interface is used. In GSM mode, this bit is set to 1, the timing of setting of the TEND flag that indicates transmission completion is advanced and clock output control mode addition is performed. The contents of the clock output control mode addition are specified by bits 1 and 0 of the serial control register (SCR). Bit 7 GM 0 Description Normal smart card interface mode operation * * 1 * * (Initial value) TEND flag generation 12.5 etu (11.5 etu in block transfer mode) after beginning of start bit Clock output ON/OFF control only GSM mode smart card interface mode operation TEND flag generation 11.0 etu after beginning of start bit High/low fixing control possible in addition to clock output ON/OFF control (set by SCR) Note: etu: Elementary time unit (time for transfer of 1 bit) 776 Bit 6--Block Transfer Mode (BLK): Selects block transfer mode. Bit 6 BLK 0 Description Normal Smart Card interface mode operation * * * 1 Error signal transmission/detection and automatic data retransmission performed TXI interrupt generated by TEND flag TEND flag set 12.5 etu after start of transmission (11.0 etu in GSM mode) Block transfer mode operation * * * Error signal transmission/detection and automatic data retransmission not performed TXI interrupt generated by TDRE flag TEND flag set 11.5 etu after start of transmission (11.0 etu in GSM mode) Note: etu: Elementary time unit (time for transfer of 1 bit) Bits 3 and 2--Basic Clock Pulse 1 and 2 (BCP1, BCP0): These bits specify the number of basic clock periods in a 1-bit transfer interval on the Smart Card interface. Bit 3 BCP1 0 Bit 2 BCP0 1 0 1 1 0 Description 32 clock periods 64 clock periods 372 clock periods 256 clock periods (Initial value) Bits 5, 4, 1, and 0: Operate in the same way as for the normal SCI. For details, see section 16.2.5, Serial Mode Register (SMR). 777 17.2.4 Bit Serial Control Register (SCR) : 7 TIE 6 RIE 0 R/W 5 TE 0 R/W 4 RE 0 R/W 3 MPIE 0 R/W 2 TEIE 0 R/W 1 CKE1 0 R/W 0 CKE0 0 R/W Initial value : R/W : 0 R/W In smart card interface mode, the function of bits 1 and 0 of SCR changes when bit 7 of the serial mode register (SMR) is set to 1. Bits 7 to 2--Operate in the same way as for the normal SCI. For details, see section 16.2.6, Serial Control Register (SCR). Bits 1 and 0--Clock Enable 1 and 0 (CKE1, CKE0): These bits are used to select the SCI clock source and enable or disable clock output from the SCK pin. In smart card interface mode, in addition to the normal switching between clock output enabling and disabling, the clock output can be specified as to be fixed high or low. SCMR SMIF 0 1 1 1 1 1 1 SMR C/A, GM See the SCI 0 0 1 1 1 1 0 0 0 0 1 1 0 1 0 1 0 1 Operates as port I/O pin Outputs clock as SCK output pin Operates as SCK output pin, with output fixed low Outputs clock as SCK output pin Operates as SCK output pin, with output fixed high Outputs clock as SCK output pin SCR Setting CKE1 CKE0 SCK Pin Function 778 17.3 17.3.1 Operation Overview The main functions of the Smart Card interface are as follows. * * * * * One frame consists of 8-bit data plus a parity bit. In transmission, a guard time of at least 2 etu (1 etu in the block transfer mode) is left between the end of the parity bit and the start of the next frame. If a parity error is detected during reception, a low error signal level is output for one etu period, 10.5 etu after the start bit. If the error signal is sampled during transmission, the same data is transmitted automatically after the elapse of 2 etu or longer. (except in block transfer mode) Only asynchronous communication is supported; there is no clocked synchronous communication function. Note: etu: Elementary time unit (time for transfer of 1 bit) 17.3.2 Pin Connections Figure 17-2 shows a schematic diagram of Smart Card interface related pin connections. In communication with an IC card, since both transmission and reception are carried out on a single data transmission line, the TxD pin and RxD pin should be connected with the LSI pin. The data transmission line should be pulled up to the VCC power supply with a resistor. When the clock generated on the Smart Card interface is used by an IC card, the SCK pin output is input to the CLK pin of the IC card. No connection is needed if the IC card uses an internal clock. LSI port output is used as the reset signal. Other pins must normally be connected to the power supply or ground. 779 VCC TxD I/O RxD SCK Rx (port) H8S/2633 Series Connected equipment Data line Clock line Reset line CLK RST IC card Figure 17-2 Schematic Diagram of Smart Card Interface Pin Connections Note: If an IC card is not connected, and the TE and RE bits are both set to 1, closed transmission/reception is possible, enabling self-diagnosis to be carried out. 780 17.3.3 Data Format (1) Normal Transfer Mode Figure 17-3 shows the normal Smart Card interface data format. In reception in this mode, a parity check is carried out on each frame, and if an error is detected an error signal is sent back to the transmitting end, and retransmission of the data is requested. If an error signal is sampled during transmission, the same data is retransmitted. When there is no parity error Ds D0 D1 D2 D3 D4 D5 D6 D7 Dp Transmitting station output When a parity error occurs Ds D0 D1 D2 D3 D4 D5 D6 D7 Dp DE Transmitting station output Legend Ds D0 to D7 Dp DE Receiving station output : Start bit : Data bits : Parity bit : Error signal Figure 17-3 Normal Smart Card Interface Data Format 781 The operation sequence is as follows. [1] When the data line is not in use it is in the high-impedance state, and is fixed high with a pullup resistor. [2] The transmitting station starts transfer of one frame of data. The data frame starts with a start bit (Ds, low-level), followed by 8 data bits (D0 to D7) and a parity bit (Dp). [3] With the Smart Card interface, the data line then returns to the high-impedance state. The data line is pulled high with a pull-up resistor. [4] The receiving station carries out a parity check. If there is no parity error and the data is received normally, the receiving station waits for reception of the next data. If a parity error occurs, however, the receiving station outputs an error signal (DE, low-level) to request retransmission of the data. After outputting the error signal for the prescribed length of time, the receiving station places the signal line in the high-impedance state again. The signal line is pulled high again by a pull-up resistor. [5] If the transmitting station does not receive an error signal, it proceeds to transmit the next data frame. If it does receive an error signal, however, it returns to step [2] and retransmits the erroneous data. (2) Block Transfer Mode The operation sequence in block transfer mode is as follows. [1] When the data line in not in use it is in the high-impedance state, and is fixed high with a pullup resistor. [2] The transmitting station starts transfer of one frame of data. The data frame starts with a start bit (Ds, low-level), followed by 8 data bits (D0 to D7) and a parity bit (Dp). [3] With the Smart Card interface, the data line then returns to the high-impedance state. The data line is pulled high with a pull-up resistor. [4] After reception, a parity error check is carried out, but an error signal is not output even if an error has occurred. When an error occurs reception cannot be continued, so the error flag should be cleared to 0 before the parity bit of the next frame is received. [5] The transmitting station proceeds to transmit the next data frame. 782 17.3.4 Register Settings Table 17-3 shows a bit map of the registers used by the smart card interface. Bits indicated as 0 or 1 must be set to the value shown. The setting of other bits is described below. Table 17-3 Smart Card Interface Register Settings Bit Register SMR BRR SCR TDR SSR RDR SCMR Bit 7 GM BRR7 TIE TDR7 TDRE RDR7 -- Bit 6 BLK BRR6 RIE TDR6 RDRF RDR6 -- Bit 5 1 BRR5 TE TDR5 ORER RDR5 -- Bit 4 O/E BRR4 RE TDR4 ERS RDR4 -- Bit 3 BCP1 BRR3 0 TDR3 PER RDR3 SDIR Bit 2 BCP0 BRR2 0 TDR2 TEND RDR2 SINV Bit 1 CKS1 BRR1 CKE1* TDR1 0 RDR1 -- Bit 0 CKS0 BRR0 CKE0 TDR0 0 RDR0 SMIF Notes: -- : Unused bit. *: The CKE1 bit must be cleared to 0 when the GM bit in SMR is cleared to 0. SMR Setting: The GM bit is cleared to 0 in normal smart card interface mode, and set to 1 in GSM mode. The O/E bit is cleared to 0 if the IC card is of the direct convention type, and set to 1 if of the inverse convention type. Bits CKS1 and CKS0 select the clock source of the on-chip baud rate generator. Bits BCP1 and BCP0 select the number of basic clock periods in a 1-bit transfer interval. For details, see section 17.3.5, Clock. The BLK bit is cleared to 0 in normal smart card interface mode, and set to 1 in block transfer mode. BRR Setting: BRR is used to set the bit rate. See section 17.3.5, Clock, for the method of calculating the value to be set. SCR Setting: The function of the TIE, RIE, TE, and RE bits is the same as for the normal SCI. For details, see section 16, Serial Communication Interface (SCI, IrDA). Bits CKE1 and CKE0 specify the clock output. When the GM bit in SMR is cleared to 0, set these bits to B'00 if a clock is not to be output, or to B'01 if a clock is to be output. When the GM bit in SMR is set to 1, clock output is performed. The clock output can also be fixed high or low. 783 Smart Card Mode Register (SCMR) Setting: The SDIR bit is cleared to 0 if the IC card is of the direct convention type, and set to 1 if of the inverse convention type. The SINV bit is cleared to 0 if the IC card is of the direct convention type, and set to 1 if of the inverse convention type. The SMIF bit is set to 1 in the case of the Smart Card interface. Examples of register settings and the waveform of the start character are shown below for the two types of IC card (direct convention and inverse convention). * Direct convention (SDIR = SINV = O/E = 0) (Z) A Ds Z D0 Z D1 A D2 Z D3 Z D4 Z D5 A D6 A D7 Z Dp (Z) State With the direct convention type, the logic 1 level corresponds to state Z and the logic 0 level to state A, and transfer is performed in LSB-first order. The start character data above is H'3B. The parity bit is 1 since even parity is stipulated for the Smart Card. * Inverse convention (SDIR = SINV = O/E = 1) (Z) A Ds Z D7 Z D6 A D5 A D4 A D3 A D2 A D1 A D0 Z Dp (Z) State With the inverse convention type, the logic 1 level corresponds to state A and the logic 0 level to state Z, and transfer is performed in MSB-first order. The start character data above is H'3F. The parity bit is 0, corresponding to state Z, since even parity is stipulated for the Smart Card. With the H8S/2633 Series, inversion specified by the SINV bit applies only to the data bits, D7 to D0. For parity bit inversion, the O/E bit in SMR is set to odd parity mode (the same applies to both transmission and reception). 784 17.3.5 Clock Only an internal clock generated by the on-chip baud rate generator can be used as the transmit/receive clock for the smart card interface. The bit rate is set with BRR and the CKS1, CKS0, BCP1 and BCP0 bits in SMR. The formula for calculating the bit rate is as shown below. Table 17-5 shows some sample bit rates. If clock output is selected by setting CKE0 to 1, a clock is output from the SCK pin. The clock frequency is determined by the bit rate and the setting of bits BCP1 and BCP0. B= o Sx2 2n+1 x (N + 1) x 10 6 Where: N = Value set in BRR (0 N 255) B = Bit rate (bit/s) o = Operating frequency (MHz) n = See table 17-4 S = Number of internal clocks in 1-bit period, set by BCP1 and BCP0 Table 17-4 Correspondence between n and CKS1, CKS0 n 0 1 2 3 1 CKS1 0 CKS0 0 1 0 1 Table 17-5 Examples of Bit Rate B (bit/s) for Various BRR Settings (When n = 0 and S = 372) o (MHz) N 0 1 2 10.00 13441 6720 4480 10.714 14400 7200 4800 13.00 17473 8737 5824 14.285 19200 9600 6400 16.00 21505 10753 7168 18.00 24194 12097 8065 20.00 26882 13441 8961 25.00 33602 16801 11201 28.00 37634 18817 12545 Note: Bit rates are rounded to the nearest whole number. 785 The method of calculating the value to be set in the bit rate register (BRR) from the operating frequency and bit rate, on the other hand, is shown below. N is an integer, 0 N 255, and the smaller error is specified. N= o Sx2 2n+1 xB x 10 6 - 1 Table 17-6 Examples of BRR Settings for Bit Rate B (bit/s) (When n = 0 and S = 372) o (MHz) 7.1424 bit/s N Error 9600 0 0.00 N 1 10.00 Error 30 10.7136 N Error 1 25 13.00 N Error 1 8.99 14.2848 N Error 1 0.00 16.00 N Error 1 12.01 18.00 N Error 2 15.99 20.00 N Error 2 6.60 25.00 N Error 3 12.49 28.00 N Error 3 1.99 Table 17-7 Maximum Bit Rate at Various Frequencies (Smart Card Interface Mode) (when S = 372) o (MHz) 7.1424 10.00 10.7136 13.00 14.2848 16.00 18.00 20.00 25.00 28.00 Maximum Bit Rate (bit/s) 9600 13441 14400 17473 19200 21505 24194 26882 33602 37634 N 0 0 0 0 0 0 0 0 0 0 n 0 0 0 0 0 0 0 0 0 0 The bit rate error is given by the following formula: Error (%) = ( o Sx2 2n+1 x B x (N + 1) x 106 - 1) x 100 786 17.3.6 Data Transfer Operations Initialization: Before transmitting and receiving data, initialize the SCI as described below. Initialization is also necessary when switching from transmit mode to receive mode, or vice versa. [1] Clear the TE and RE bits in SCR to 0. [2] Clear the error flags ERS, PER, and ORER in SSR to 0. [3] Set the GM, BLK, O/E, BCP1, BCP0, CKS1, and CKS0 bits in SMR. Set the PE bit to 1. [4] Set the SMIF, SDIR, and SINV bits in SCMR. When the SMIF bit is set to 1, the TxD and RxD pins are both switched from ports to SCI pins, and are placed in the high-impedance state. [5] Set the value corresponding to the bit rate in BRR. [6] Set the CKE0 and CKE1 bits in SCR. Clear the TIE, RIE, TE, RE, MPIE, and TEIE bits to 0. If the CKE0 bit is set to 1, the clock is output from the SCK pin. [7] Wait at least one bit interval, then set the TIE, RIE, TE, and RE bits in SCR. Do not set the TE bit and RE bit at the same time, except for self-diagnosis. 787 Serial Data Transmission: As data transmission in smart card mode involves error signal sampling and retransmission processing, the processing procedure is different from that for the normal SCI. Figure 17-4 shows a flowchart for transmitting, and figure 17-5 shows the relation between a transmit operation and the internal registers. [1] Perform Smart Card interface mode initialization as described above in Initialization. [2] Check that the ERS error flag in SSR is cleared to 0. [3] Repeat steps [2] and [3] until it can be confirmed that the TEND flag in SSR is set to 1. [4] Write the transmit data to TDR, clear the TDRE flag to 0, and perform the transmit operation. The TEND flag is cleared to 0. [5] When transmitting data continuously, go back to step [2]. [6] To end transmission, clear the TE bit to 0. With the above processing, interrupt servicing or data transfer by the DMAC or DTC is possible. If transmission ends and the TEND flag is set to 1 while the TIE bit is set to 1 and interrupt requests are enabled, a transmit data empty interrupt (TXI) request will be generated. If an error occurs in transmission and the ERS flag is set to 1 while the RIE bit is set to 1 and interrupt requests are enabled, a transfer error interrupt (ERI) request will be generated. The timing for setting the TEND flag depends on the value of the GM bit in SMR. The TEND flag set timing is shown in figure 17-6. If the DMAC or DTC is activated by a TXI request, the number of bytes set in the DMAC or DTC can be transmitted automatically, including automatic retransmission. For details, see Interrupt Operation and Data Transfer Operation by DMAC or DTC below. Note: For block transfer mode, see section 16.3.2, Operation in Asynchronous Mode. 788 Start Initialization Start transmission ERS=0? Yes No Error processing No TEND=1? Yes Write data to TDR, and clear TDRE flag in SSR to 0 No All data transmitted? Yes No ERS=0? Yes Error processing No TEND=1? Yes Clear TE bit to 0 End Figure 17-4 Example of Transmission Processing Flow 789 TDR (1) Data write (2) Transfer from TDR to TSR (3) Serial data output Data 1 Data 1 Data 1 TSR (shift register) Data 1 ; Data remains in TDR Data 1 I/O signal line output In case of normal transmission: TEND flag is set In case of transmit error: ERS flag is set Steps (2) and (3) above are repeated until the TEND flag is set Note: When the ERS flag is set, it should be cleared until transfer of the last bit (D7 in LSB-first transmission, D0 in MSB-first transmission) of the next transfer data to be transmitted has been completed. Figure 17-5 Relation Between Transmit Operation and Internal Registers I/O data TXI (TEND interrupt) When GM = 0 Ds D0 D1 D2 D3 D4 D5 D6 D7 Dp DE Guard time 12.5 etu When GM = 1 11.0 etu Legend Ds D0 to D7 Dp DE : Start bit : Data bits : Parity bit : Error signal Note: etu: Elementary time unit (time for transfer of 1 bit) Figure 17-6 TEND Flag Generation Timing in Transmission Operation 790 Serial Data Reception (Except Block Transfer Mode): Data reception in Smart Card mode uses the same processing procedure as for the normal SCI. Figure 17-7 shows an example of the transmission processing flow. [1] Perform Smart Card interface mode initialization as described above in Initialization. [2] Check that the ORER flag and PER flag in SSR are cleared to 0. If either is set, perform the appropriate receive error processing, then clear both the ORER and the PER flag to 0. [3] Repeat steps [2] and [3] until it can be confirmed that the RDRF flag is set to 1. [4] Read the receive data from RDR. [5] When receiving data continuously, clear the RDRF flag to 0 and go back to step [2]. [6] To end reception, clear the RE bit to 0. Start Initialization Start reception ORER = 0 and PER = 0 Yes No Error processing No RDRF=1? Yes Read RDR and clear RDRF flag in SSR to 0 No All data received? Yes Clear RE bit to 0 Figure 17-7 Example of Reception Processing Flow 791 With the above processing, interrupt servicing or data transfer by the DMAC or DTC is possible. If reception ends and the RDRF flag is set to 1 while the RIE bit is set to 1 and interrupt requests are enabled, a receive data full interrupt (RXI) request will be generated. If an error occurs in reception and either the ORER flag or the PER flag is set to 1, a transfer error interrupt (ERI) request will be generated. If the DMAC or DTC is activated by an RXI request, the receive data in which the error occurred is skipped, and only the number of bytes of receive data set in the DMAC or DTC are transferred. For details, see Interrupt Operation and Data Transfer Operation by DMAC or DTC below. If a parity error occurs during reception and the PER is set to 1, the received data is still transferred to RDR, and therefore this data can be read. Note: For block transfer mode, see section 16.3.2, Operation in Asynchronous Mode. Mode Switching Operation: When switching from receive mode to transmit mode, first confirm that the receive operation has been completed, then start from initialization, clearing RE bit to 0 and setting TE bit to 1. The RDRF flag or the PER and ORER flags can be used to check that the receive operation has been completed. When switching from transmit mode to receive mode, first confirm that the transmit operation has been completed, then start from initialization, clearing TE bit to 0 and setting RE bit to 1. The TEND flag can be used to check that the transmit operation has been completed. Fixing Clock Output Level: When the GM bit in SMR is set to 1, the clock output level can be fixed with bits CKE1 and CKE0 in SCR. At this time, the minimum clock pulse width can be made the specified width. Figure 17-8 shows the timing for fixing the clock output level. In this example, GM is set to 1, CKE1 is cleared to 0, and the CKE0 bit is controlled. Specified pulse width Specified pulse width SCK SCR write (CKE0 = 0) SCR write (CKE0 = 1) Figure 17-8 Timing for Fixing Clock Output Level Interrupt Operation (Except Block Transfer Mode): There are three interrupt sources in smart card interface mode: transmit data empty interrupt (TXI) requests, transfer error interrupt (ERI) 792 requests, and receive data full interrupt (RXI) requests. The transmit end interrupt (TEI) request is not used in this mode. When the TEND flag in SSR is set to 1, a TXI interrupt request is generated. When the RDRF flag in SSR is set to 1, an RXI interrupt request is generated. When any of flags ORER, PER, and ERS in SSR is set to 1, an ERI interrupt request is generated. The relationship between the operating states and interrupt sources is shown in table 17-8. Note: For block transfer mode, see section 16.4, SCI Interrupts. Table 17-8 Smart Card Mode Operating States and Interrupt Sources Operating State Transmit Mode Normal operation Error Receive Mode Normal operation Error Flag TEND ERS RDRF PER, ORER Enable Bit TIE RIE RIE RIE Interrupt Source TXI ERI RXI ERI DMAC Activation Possible Not possible Possible Not possible DTC Activation Possible Not possible Possible Not possible Data Transfer Operation by DMAC* or DTC *: In smart card mode, as with the normal SCI, transfer can be carried out using the DMAC* or DTC*. In a transmit operation, the TDRE flag is also set to 1 at the same time as the TEND flag in SSR, and a TXI interrupt is generated. If the TXI request is designated beforehand as a DMAC* or DTC* activation source, the DMAC* or DTC* will be activated by the TXI request, and transfer of the transmit data will be carried out. The TDRE and TEND flags are automatically cleared to 0 when data transfer is performed by the DMAC* or DTC*. In the event of an error, the SCI retransmits the same data automatically. During this period, TEND remains cleared to 0 and the DMAC* is not activated. Therefore, the SCI and DMAC* will automatically transmit the specified number of bytes, including retransmission in the event of an error. However, the ERS flag is not cleared automatically when an error occurs, and so the RIE bit should be set to 1 beforehand so that an ERI request will be generated in the event of an error, and the ERS flag will be cleared. When performing transfer using the DMAC* or DTC*, it is essential to set and enable the DMAC* or DTC* before carrying out SCI setting. For details of the DMAC* or DTC* setting procedures, see section 8, DMA Controller (DMAC*) and section 9, Data Transfer Controller (DTC*). In a receive operation, an RXI interrupt request is generated when the RDRF flag in SSR is set to 1. If the RXI request is designated beforehand as a DMAC* or DTC* activation source, the DMAC* or DTC* will be activated by the RXI request, and transfer of the receive data will be 793 carried out. The RDRF flag is cleared to 0 automatically when data transfer is performed by the DMAC* or DTC*. If an error occurs, an error flag is set but the RDRF flag is not. Consequently, the DTC* or DTC* is not activated, but instead, an ERI interrupt request is sent to the CPU. Therefore, the error flag should be cleared. Notes: For block transfer mode, see section 16.4, SCI Interrupts. * DMAC and DTC functions are not available in the H8S/2695. 17.3.7 Operation in GSM Mode Switching the Mode: When switching between smart card interface mode and software standby mode, the following switching procedure should be followed in order to maintain the clock duty. * When changing from smart card interface mode to software standby mode [1] Set the data register (DR) and data direction register (DDR) corresponding to the SCK pin to the value for the fixed output state in software standby mode. [2] Write 0 to the TE bit and RE bit in the serial control register (SCR) to halt transmit/receive operation. At the same time, set the CKE1 bit to the value for the fixed output state in software standby mode. [3] Write 0 to the CKE0 bit in SCR to halt the clock. [4] Wait for one serial clock period. During this interval, clock output is fixed at the specified level, with the duty preserved. [5] Make the transition to the software standby state. * When returning to smart card interface mode from software standby mode [6] Exit the software standby state. [7] Write 1 to the CKE0 bit in SCR and output the clock. Signal generation is started with the normal duty. Software standby Normal operation Normal operation [1] [2] [3] [4] [5] [6] [7] Figure 17-9 Clock Halt and Restart Procedure 794 Powering On: To secure the clock duty from power-on, the following switching procedure should be followed. [1] The initial state is port input and high impedance. Use a pull-up resistor or pull-down resistor to fix the potential. [2] Fix the SCK pin to the specified output level with the CKE1 bit in SCR. [3] Set SMR and SCMR, and switch to smart card mode operation. [4] Set the CKE0 bit in SCR to 1 to start clock output. 17.3.8 Operation in Block Transfer Mode Operation in block transfer mode is the same as in SCI asynchronous mode, except for the following points. For details, see section 16.3.2, Operation in Asynchronous Mode. (1) Data Format The data format is 8 bits with parity. There is no stop bit, but there is a 2-bit (1-bit or more in reception) error guard time. Also, except during transmission (with start bit, data bits, and parity bit), the transmission pins go to the high-impedance state, so the signal lines must be fixed high with a pull-up resistor. (2) Transmit/Receive Clock Only an internal clock generated by the on-chip baud rate generator can be used as the transmit/receive clock. The number of basic clock periods in a 1-bit transfer interval can be set to 32, 64, 372, or 256 with bits BCP1 and BCP0. For details, see section 17.3.5, Clock. (3) ERS (FER) Flag As with the normal Smart Card interface, the ERS flag indicates the error signal status, but since error signal transmission and reception is not performed, this flag is always cleared to 0. 795 17.4 Usage Notes The following points should be noted when using the SCI as a Smart Card interface. Receive Data Sampling Timing and Reception Margin in Smart Card Interface Mode: In Smart Card interface mode, the SCI operates on a basic clock with a frequency of 32, 64, 372, or 256 times the transfer rate (as determined by bits BCP1 and BCP0). In reception, the SCI samples the falling edge of the start bit using the basic clock, and performs internal synchronization. Receive data is latched internally at the rising edge of the 16th, 32nd, 186th, or 128th pulse of the basic clock. Figure 17-10 shows the receive data sampling timing when using a clock of 372 times the transfer rate. 372 clocks 186 clocks 0 185 371 0 185 371 0 Internal basic clock Receive data (RxD) Start bit D0 D1 Synchronization sampling timing Data sampling timing Figure 17-10 Receive Data Sampling Timing in Smart Card Mode (Using Clock of 372 Times the Transfer Rate) 796 Thus the reception margin in asynchronous mode is given by the following formula. Formula for reception margin in smart card interface mode M = (0.5 - 1 2N ) - (L - 0.5) F - D - 0.5 N (1 + F) x 100% Where M: Reception margin (%) N: Ratio of bit rate to clock (N = 32, 64, 372, and 256) D: Clock duty (D = 0 to 1.0) L: Frame length (L = 10) F: Absolute value of clock frequency deviation Assuming values of F = 0, D = 0.5 and N = 372 in the above formula, the reception margin formula is as follows. When D = 0.5 and F = 0, M = (0.5 - 1/2 x 372) x 100% = 49.866% Retransfer Operations (Except Block Transfer Mode): Retransfer operations are performed by the SCI in receive mode and transmit mode as described below. * Retransfer operation when SCI is in receive mode Figure 17-11 illustrates the retransfer operation when the SCI is in receive mode. [1] If an error is found when the received parity bit is checked, the PER bit in SSR is automatically set to 1. If the RIE bit in SCR is enabled at this time, an ERI interrupt request is generated. The PER bit in SSR should be kept cleared to 0 until the next parity bit is sampled. [2] The RDRF bit in SSR is not set for a frame in which an error has occurred. [3] If no error is found when the received parity bit is checked, the PER bit in SSR is not set to 1. [4] If no error is found when the received parity bit is checked, the receive operation is judged to have been completed normally, and the RDRF flag in SSR is automatically set to 1. If the RIE bit in SCR is enabled at this time, an RXI interrupt request is generated. If DMAC* or DTC* data transfer by an RXI source is enabled, the contents of RDR can be read automatically. When the RDR data is read by the DMAC* or DTC*, the RDRF flag is automatically cleared to 0. [5] When a normal frame is received, the pin retains the high-impedance state at the timing for error signal transmission. Note: * DMAC and DTC functions are not available in the H8S/2695. 797 nth transfer frame Ds D0 D1 D2 D3 D4 D5 D6 D7 Dp DE RDRF [2] PER [1] Retransferred frame Transfer frame n+1 (DE) Ds D0 D1 D2 D3 D4 D5 D6 D7 Dp Ds D0 D1 D2 D3 D4 [4] [3] Figure 17-11 Retransfer Operation in SCI Receive Mode * Retransfer operation when SCI is in transmit mode Figure 17-12 illustrates the retransfer operation when the SCI is in transmit mode. [6] If an error signal is sent back from the receiving end after transmission of one frame is completed, the ERS bit in SSR is set to 1. If the RIE bit in SCR is enabled at this time, an ERI interrupt request is generated. The ERS bit in SSR should be kept cleared to 0 until the next parity bit is sampled. [7] The TEND bit in SSR is not set for a frame for which an error signal indicating an abnormality is received. [8] If an error signal is not sent back from the receiving end, the ERS bit in SSR is not set. [9] If an error signal is not sent back from the receiving end, transmission of one frame, including a retransfer, is judged to have been completed, and the TEND bit in SSR is set to 1. If the TIE bit in SCR is enabled at this time, a TXI interrupt request is generated. If data transfer by the DMAC* and DTC* by means of the TXI source is enabled, the next data can be written to TDR automatically. When data is written to TDR by the DMAC* or DTC*, the TDRE bit is automatically cleared to 0. Note: * DMAC and DTC functions are not available in the H8S/2695. nth transfer frame Ds D0 D1 D2 D3 D4 D5 D6 D7 Dp DE TDRE Transfer to TSR from TDR TEND [7] FER/ERS [6] [8] [9] Transfer to TSR from TDR Transfer to TSR from TDR Retransferred frame Ds D0 D1 D2 D3 D4 D5 D6 D7 Dp (DE) Transfer frame n+1 Ds D0 D1 D2 D3 D4 Figure 17-12 Retransfer Operation in SCI Transmit Mode 798 Section 18 I2 C Bus Interface [Option] (This function is not available in the H8S/2695) A two-channel I2C bus interface is available as an option in the H8S/2633 Series. The I2C bus interface is not available for the H8S/2633 Series. Observe the following notes when using this option. 1. For mask-ROM versions, a W is added to the part number in products in which this optional function is used. Examples: HD6432633WF 2. The product number is identical for F-ZTAT versions. However, be sure to inform your Hitachi sales representative if you will be using this option. 18.1 Overview A two-channel I2C bus interface is available for the H8S/2633 Series as an option. The I2C bus interface conforms to and provides a subset of the Philips I2C bus (inter-IC bus) interface functions. The register configuration that controls the I2C bus differs partly from the Philips configuration, however. Each I2C bus interface channel uses only one data line (SDA) and one clock line (SCL) to transfer data, saving board and connector space. 18.1.1 Features * Selection of addressing format or non-addressing format I2C bus format: addressing format with acknowledge bit, for master/slave operation Serial format: non-addressing format without acknowledge bit, for master operation only * Conforms to Philips I2C bus interface (I2C bus format) * Two ways of setting slave address (I2C bus format) * Start and stop conditions generated automatically in master mode (I2C bus format) * Selection of acknowledge output levels when receiving (I2C bus format) * Automatic loading of acknowledge bit when transmitting (I2C bus format) 799 * Wait function in master mode (I 2C bus format) A wait can be inserted by driving the SCL pin low after data transfer, excluding acknowledgement. The wait can be cleared by clearing the interrupt flag. * Wait function in slave mode (I2C bus format) A wait request can be generated by driving the SCL pin low after data transfer, excluding acknowledgement. The wait request is cleared when the next transfer becomes possible. * Three interrupt sources Data transfer end (including transmission mode transition with I 2C bus format and address reception after loss of master arbitration) Address match: when any slave address matches or the general call address is received in slave receive mode (I2C bus format) Stop condition detection * Selection of 16 internal clocks (in master mode) * Direct bus drive (with SCL and SDA pins) Two pins--P35/SCL0 and P34/SDA0--(normally NMOS push-pull outputs) function as NMOS open-drain outputs when the bus drive function is selected. Two pins--P33/SCL1 and P32/SDA1--(normally CMOS pins) function as NMOS-only outputs when the bus drive function is selected. 18.1.2 Block Diagram Figure 18-1 shows a block diagram of the I2C bus interface. Figure 18-2 shows an example of I/O pin connections to external circuits. Channel 0 I/O pins are NMOS open drains, and it is possible to apply voltages in excess of the power supply (PVCC) voltage for this LSI. Set the upper limit of voltage applied to the power supply (PVCC) power supply range + 0.3 V, i.e. 5.8 V. Channel 1 I/O pins are driven solely by NMOS, so in terms of appearance they carry out the same operations as an NMOS open drain. However, the voltage which can be applied to the I/O pins depends on the voltage of the power supply (PVCC) of this LSI. 800 o SCL PS ICCR Clock control Noise canceler Bus state decision circuit Arbitration decision circuit ICMR ICSR ICDRT SDA Output data control circuit ICDRS ICDRR Noise canceler Address comparator SAR, SARX Legend: ICCR: I2C bus control register ICMR: I2C bus mode register ICSR: I2C bus status register ICDR: I2C bus data register SAR: Slave address register SARX: Second slave address register X Prescaler PS: Interrupt generator Interrupt request Figure 18-1 Block Diagram of I 2C Bus Interface Internal data bus 801 VDD PVCC2 SCL SCL in SCL out SDA SDA SCL SDA in SDA out (Master) SCL SDA SCL in SCL out SCL in SCL out H8S/2633 Series chip SDA in SDA out (Slave 1) SDA in SDA out (Slave 2) Figure 18-2 I 2C Bus Interface Connections (Example: H8S/2633 Series Chip as Master) 18.1.3 Input/Output Pins Table 18-1 summarizes the input/output pins used by the I2C bus interface. Table 18-1 I2C Bus Interface Pins Channel 0 Name Serial clock Serial data 1 Serial clock Serial data Abbreviation* SCL0 SDA0 SCL1 SDA1 I/O I/O I/O I/O I/O Function IIC0 serial clock input/output IIC0 serial data input/output IIC1 serial clock input/output IIC1 serial data input/output Note: * In the text, the channel subscript is omitted, and only SCL and SDA are used. 802 SCL SDA 18.1.4 Register Configuration Table 18-2 summarizes the registers of the I2C bus interface. Table 18-2 Register Configuration Channel 0 Name I 2C bus control register I 2C bus status register I 2C bus data register I 2C bus mode register Slave address register Second slave address register 1 I 2C bus control register I 2C bus status register I 2C bus data register I 2C bus mode register Slave address register Second slave address register Common Serial control register X DDC switch register Module stop control register B Abbreviation ICCR0 ICSR0 ICDR0 ICMR0 SAR0 SARX0 ICCR1 ICSR1 ICDR1 ICMR1 SAR1 SARX1 SCRX DDCSWR MSTPCRB R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W Initial Value H'01 H'00 -- H'00 H'00 H'01 H'01 H'00 -- H'00 H'00 H'01 H'00 H'0F H'FF Address* 1 H'FF78* 3 H'FF79* 3 H'FF7E* 2 *3 H'FF7F* 2 *3 H'FF7F* 2 *3 H'FF7E* 2 *3 H'FF80* 3 H'FF81* 3 H'FF86* 2 *3 H'FF87* 2 *3 H'FF87* 2 *3 H'FF86* 2 *3 H'FDB4 H'FDB5 H'FDE9 Notes: *1 Lower 16 bits of the address. *2 The register that can be written or read depends on the ICE bit in the I 2C bus control register. The slave address register can be accessed when ICE = 0, and the I2C bus mode register can be accessed when ICE = 1. *3 The I 2C bus interface registers are assigned to the same addresses as other registers. Register selection is performed by means of the IICE bit in the serial control register X (SCRX). 803 18.2 18.2.1 Bit Register Descriptions I2C Bus Data Register (ICDR) : 7 ICDR7 -- R/W 6 ICDR6 -- R/W 5 ICDR5 -- R/W 4 ICDR4 -- R/W 3 ICDR3 -- R/W 2 ICDR2 -- R/W 1 ICDR1 -- R/W 0 ICDR0 -- R/W Initial value : R/W : * ICDRR Bit : 7 -- R 6 -- R 5 -- R 4 -- R 3 -- R 2 -- R 1 -- R 0 -- R ICDRR7 ICDRR6 ICDRR5 ICDRR4 ICDRR3 ICDRR2 ICDRR1 ICDRR0 Initial value : R/W : * ICDRS Bit : 7 -- -- 6 -- -- 5 -- -- 4 -- -- 3 -- -- 2 -- -- 1 -- -- 0 -- -- ICDRS7 ICDRS6 ICDRR5 ICDRS4 ICDRS3 ICDRS2 ICDRS1 ICDRS0 Initial value : R/W : * ICDRT Bit : 7 -- W 6 -- W 5 -- W 4 -- W 3 -- W 2 -- W 1 -- W 0 -- W ICDRT7 ICDRT6 ICDRT5 ICDRT4 ICDRT3 ICDRT2 ICDRT1 ICDRT0 Initial value : R/W : * TDRE, RDRF (internal flags) Bit Initial value R/W : : : -- TDRE 0 -- -- RDRF 0 -- 804 ICDR is an 8-bit readable/writable register that is used as a transmit data register when transmitting and a receive data register when receiving. ICDR is divided internally into a shift register (ICDRS), receive buffer (ICDRR), and transmit buffer (ICDRT). ICDRS cannot be read or written by the CPU, ICDRR is read-only, and ICDRT is write-only. Data transfers among the three registers are performed automatically in coordination with changes in the bus state, and affect the status of internal flags such as TDRE and RDRF. If IIC is in transmit mode and the next data is in ICDRT (the TDRE flag is 0) following transmission/reception of one frame of data using ICDRS, data is transferred automatically from ICDRT to ICDRS. If IIC is in receive mode and no previous data remains in ICDRR (the RDRF flag is 0) following transmission/reception of one frame of data using ICDRS, data is transferred automatically from ICDRS to ICDRR. If the number of bits in a frame, excluding the acknowledge bit, is less than 8, transmit data and receive data are stored differently. Transmit data should be written justified toward the MSB side when MLS = 0, and toward the LSB side when MLS = 1. Receive data bits read from the LSB side should be treated as valid when MLS = 0, and bits read from the MSB side when MLS = 1. ICDR is assigned to the same address as SARX, and can be written and read only when the ICE bit is set to 1 in ICCR. The value of ICDR is undefined after a reset. The TDRE and RDRF flags are set and cleared under the conditions shown below. Setting the TDRE and RDRF flags affects the status of the interrupt flags. 805 TDRE 0 Description The next transmit data is in ICDR (ICDRT), or transmission cannot be started [Clearing conditions] * * * * When transmit data is written in ICDR (ICDRT) in transmit mode (TRS = 1) When a stop condition is detected in the bus line state after a stop condition is issued with the I 2C bus format or serial format selected When a stop condition is detected with the I 2C bus format selected In receive mode (TRS = 0) (A 0 write to TRS during transfer is valid after reception of a frame containing an acknowledge bit) (Initial value) 1 The next transmit data can be written in ICDR (ICDRT) [Setting conditions] * In transmit mode (TRS = 1), when a start condition is detected in the bus line state after a start condition is issued in master mode with the I 2C bus format or serial format selected When using formatless mode in transmit mode (TRS = 1) When data is transferred from ICDRT to ICDRS (Data transfer from ICDRT to ICDRS when TRS = 1 and TDRE = 0, and ICDRS is empty) When a switch is made from receive mode (TRS = 0) to transmit mode (TRS = 1 ) after detection of a start condition * * * RDRF 0 Description The data in ICDR (ICDRR) is invalid [Clearing condition] When ICDR (ICDRR) receive data is read in receive mode (Initial value) 1 The ICDR (ICDRR) receive data can be read [Setting condition] When data is transferred from ICDRS to ICDRR (Data transfer from ICDRS to ICDRR in case of normal termination with TRS = 0 and RDRF = 0) 806 18.2.2 Bit Slave Address Register (SAR) : 7 SVA6 0 R/W 6 SVA5 0 R/W 5 SVA4 0 R/W 4 SVA3 0 R/W 3 SVA2 0 R/W 2 SVA1 0 R/W 1 SVA0 0 R/W 0 FS 0 R/W Initial value : R/W : SAR is an 8-bit readable/writable register that stores the slave address and selects the communication format. When the chip is in slave mode (and the addressing format is selected), if the upper 7 bits of SAR match the upper 7 bits of the first frame received after a start condition, the chip operates as the slave device specified by the master device. SAR is assigned to the same address as ICMR, and can be written and read only when the ICE bit is cleared to 0 in ICCR. SAR is initialized to H'00 by a reset and in hardware standby mode. Bits 7 to 1--Slave Address (SVA6 to SVA0): Set a unique address in bits SVA6 to SVA0, differing from the addresses of other slave devices connected to the I2C bus. Bit 0--Format Select (FS): Used together with the FSX bit in SARX and the SW bit in DDCSWR to select the communication format. * I2C bus format: addressing format with acknowledge bit * Synchronous serial format: non-addressing format without acknowledge bit, for master mode only The FS bit also specifies whether or not SAR slave address recognition is performed in slave mode. 807 DDCSWR Bit 6 SW 0 SAR Bit 0 FS 0 SARX Bit 0 FSX 0 1 Operating Mode I 2C bus format * 2 SAR and SARX slave addresses recognized (Initial value) SAR slave address recognized SARX slave address ignored SAR slave address ignored SARX slave address recognized SAR and SARX slave addresses ignored I C bus format * * 1 0 I 2C bus format * * 1 1 -- -- Synchronous serial format * Must not be set. 18.2.3 Bit Second Slave Address Register (SARX) : 7 SVAX6 0 R/W 6 SVAX5 0 R/W 5 SVAX4 0 R/W 4 SVAX3 0 R/W 3 SVAX2 0 R/W 2 SVAX1 0 R/W 1 SVAX0 0 R/W 0 FSX 1 R/W Initial value : R/W : SARX is an 8-bit readable/writable register that stores the second slave address and selects the communication format. When the chip is in slave mode (and the addressing format is selected), if the upper 7 bits of SARX match the upper 7 bits of the first frame received after a start condition, the chip operates as the slave device specified by the master device. SARX is assigned to the same address as ICDR, and can be written and read only when the ICE bit is cleared to 0 in ICCR. SARX is initialized to H'01 by a reset and in hardware standby mode. Bits 7 to 1--Second Slave Address (SVAX6 to SVAX0): Set a unique address in bits SVAX6 to SVAX0, differing from the addresses of other slave devices connected to the I2C bus. 808 Bit 0--Format Select X (FSX): Used together with the FS bit in SAR and the SW bit in DDCSWR to select the communication format. * I2C bus format: addressing format with acknowledge bit * Synchronous serial format: non-addressing format without acknowledge bit, for master mode only The FSX bit also specifies whether or not SARX slave address recognition is performed in slave mode. For details, see the description of the FS bit in SAR. 18.2.4 Bit I2C Bus Mode Register (ICMR) : 7 MLS 0 R/W 6 WAIT 0 R/W 5 CKS2 0 R/W 4 CKS1 0 R/W 3 CKS0 0 R/W 2 BC2 0 R/W 1 BC1 0 R/W 0 BC0 0 R/W Initial value : R/W : ICMR is an 8-bit readable/writable register that selects whether the MSB or LSB is transferred first, performs master mode wait control, and selects the master mode transfer clock frequency and the transfer bit count. ICMR is assigned to the same address as SAR. ICMR can be written and read only when the ICE bit is set to 1 in ICCR. ICMR is initialized to H'00 by a reset and in hardware standby mode. Bit 7--MSB-First/LSB-First Select (MLS): Selects whether data is transferred MSB-first or LSB-first. If the number of bits in a frame, excluding the acknowledge bit, is less than 8, transmit data and receive data are stored differently. Transmit data should be written justified toward the MSB side when MLS = 0, and toward the LSB side when MLS = 1. Receive data bits read from the LSB side should be treated as valid when MLS = 0, and bits read from the MSB side when MLS = 1. Do not set this bit to 1 when the I 2C bus format is used. Bit 7 MLS 0 1 Description MSB-first LSB-first (Initial value) 809 Bit 6--Wait Insertion Bit (WAIT): Selects whether to insert a wait between the transfer of data and the acknowledge bit, in master mode with the I2C bus format. When WAIT is set to 1, after the fall of the clock for the final data bit, the IRIC flag is set to 1 in ICCR, and a wait state begins (with SCL at the low level). When the IRIC flag is cleared to 0 in ICCR, the wait ends and the acknowledge bit is transferred. If WAIT is cleared to 0, data and acknowledge bits are transferred consecutively with no wait inserted. The IRIC flag in ICCR is set to 1 on completion of the acknowledge bit transfer, regardless of the WAIT setting. The setting of this bit is invalid in slave mode. Bit 6 WAIT 0 1 Description Data and acknowledge bits transferred consecutively Wait inserted between data and acknowledge bits (Initial value) 810 Bits 5 to 3--Serial Clock Select (CKS2 to CKS0): These bits, together with the IICX1 (channel 1) or IICX0 (channel 0) bit in the SCRX register, select the serial clock frequency in master mode. They should be set according to the required transfer rate. SCRX Bit 5 or 6 IICX 0 Bit 5 CKS2 0 Bit 4 CKS1 0 Bit 3 CKS0 0 1 Clock o/28 o/40 o/48 o/64 o/80 o/100 o/112 o/128 o/56 o/80 o/96 o/128 o/160 o/200 o/224 o/256 o= 5 MHz 179 kHz 125 kHz 104 kHz 78.1 kHz 62.5 kHz 50.0 kHz 44.6 kHz 39.1 kHz 89.3 kHz 62.5 kHz 52.1 kHz 39.1 kHz 31.3 kHz 25.0 kHz 22.3 kHz 19.5 kHz o= 8 MHz 286 kHz 200 kHz 167 kHz 125 kHz 100 kHz 80.0 kHz 71.4 kHz 62.5 kHz 143 kHz 100 kHz 83.3 kHz 62.5 kHz 50.0 kHz 40.0 kHz 35.7 kHz 31.3 kHz o= 10 MHz 357 kHz 250 kHz 208 kHz 156 kHz 125 kHz 100 kHz 89.3 kHz 78.1 kHz 179 kHz 125 kHz 104 kHz 78.1 kHz 62.5 kHz 50.0 kHz 44.6 kHz 39.1 kHz Transfer Rate o= 16 MHz o= 20 MHz o= 25 MHz o= 28 MHz 571 kHz* 714 kHz* 893 kHz* 1000 kHz* 400 kHz 333 kHz 250 kHz 200 kHz 160 kHz 143 kHz 125 kHz 286 kHz 200 kHz 167 kHz 125 kHz 100 kHz 80.0 kHz 71.4 kHz 62.5 kHz 500 kHz* 625 kHz* 700 kHz* 417 kHz* 521 kHz* 583 kHz* 313 kHz 250 kHz 200 kHz 179 kHz 156 kHz 357 kHz 250 kHz 208 kHz 156 kHz 125 kHz 100 kHz 89.3 kHz 78.1 kHz 391 kHz 313 kHz 250 kHz 223 kHz 195 kHz 438 kHz* 350 kHz 280 kHz 250 kHz 219 kHz 1 0 1 1 0 0 1 1 0 1 1 0 0 0 1 446 kHz* 500 kHz* 313 kHz 260 kHz 195 kHz 156 kHz 125 kHz 112 kHz 97.7 kHz 350 kHz 292 kHz 219 kHz 175 kHz 140 kHz 125 kHz 109 kHz 1 0 1 1 0 0 1 1 0 1 Note: * These rates are outside the ranges stipulated in the I2C bus interface specifications (normal mode: max. 100 kHz, high-speed mode: max. 400 kHz). 811 Bits 2 to 0--Bit Counter (BC2 to BC0): Bits BC2 to BC0 specify the number of bits to be transferred next. With the I 2C bus format (when the FS bit in SAR or the FSX bit in SARX is 0), the data is transferred with one addition acknowledge bit. Bit BC2 to BC0 settings should be made during an interval between transfer frames. If bits BC2 to BC0 are set to a value other than 000, the setting should be made while the SCL line is low. The bit counter is initialized to 000 by a reset and when a start condition is detected. The value returns to 000 at the end of a data transfer, including the acknowledge bit. Bit 2 BC2 0 Bit 1 BC1 0 Bit 0 BC0 0 1 1 0 1 1 0 0 1 1 0 1 Bits/Frame Synchronous Serial Format 8 1 2 3 4 5 6 7 I 2C Bus Format 9 2 3 4 5 6 7 8 (Initial value) 18.2.5 Bit I2C Bus Control Register (ICCR) : 7 ICE 0 R/W 6 IEIC 0 R/W 5 MST 0 R/W 4 TRS 0 R/W 3 ACKE 0 R/W 2 BBSY 0 R/W 1 IRIC 0 R/(W)* 0 SCP 1 W Initial value : R/W : Note: * Only 0 can be written, for flag clearing. ICCR is an 8-bit readable/writable register that enables or disables the I2C bus interface, enables or disables interrupts, selects master or slave mode and transmission or reception, enables or disables acknowledgement, confirms the I2C bus interface bus status, issues start/stop conditions, and performs interrupt flag confirmation. ICCR is initialized to H'01 by a reset and in hardware standby mode. 812 Bit 7--I2C Bus Interface Enable (ICE): Selects whether or not the I2C bus interface is to be used. When ICE is set to 1, port pins function as SCL and SDA input/output pins and transfer operations are enabled. When ICE is cleared to 0, the I2C bus interface module is halted and its internal states are cleared. The SAR and SARX registers can be accessed when ICE is 0. The ICMR and ICDR registers can be accessed when ICE is 1. Bit 7 ICE 0 Description I 2C bus interface module disabled, with SCL and SDA signal pins set to port function I 2C bus interface module internal states initialized SAR and SARX can be accessed 1 I 2C bus interface module enabled for transfer operations (pins SCL and SCA are driving the bus) ICMR and ICDR can be accessed (Initial value) Bit 6--I2C Bus Interface Interrupt Enable (IEIC): Enables or disables interrupts from the I2C bus interface to the CPU. Bit 6 IEIC 0 1 Description Interrupts disabled Interrupts enabled (Initial value) Bit 5--Master/Slave Select (MST) Bit 4--Transmit/Receive Select (TRS) MST selects whether the I2C bus interface operates in master mode or slave mode. TRS selects whether the I2C bus interface operates in transmit mode or receive mode. In master mode with the I2C bus format, when arbitration is lost, MST and TRS are both reset by hardware, causing a transition to slave receive mode. In slave receive mode with the addressing format (FS = 0 or FSX = 0), hardware automatically selects transmit or receive mode according to the R/W bit in the first frame after a start condition. Modification of the TRS bit during transfer is deferred until transfer of the frame containing the acknowledge bit is completed, and the changeover is made after completion of the transfer. 813 MST and TRS select the operating mode as follows. Bit 5 MST 0 Bit 4 TRS 0 1 1 0 1 Operating Mode Slave receive mode Slave transmit mode Master receive mode Master transmit mode (Initial value) Bit 5 MST 0 Description Slave mode [Clearing conditions] 1. When 0 is written by software 2. When bus arbitration is lost after transmission is started in I 2C bus format master mode 1 Master mode [Setting conditions] 1. When 1 is written by software (in cases other than clearing condition 2) 2. When 1 is written in MST after reading MST = 0 (in case of clearing condition 2) Bit 4 TRS 0 Description Receive mode [Clearing conditions] 1. When 0 is written by software (in cases other than setting condition 3) 2. When 0 is written in TRS after reading TRS = 1 (in case of clearing condition 3) 3. When bus arbitration is lost after transmission is started in I 2C bus format master mode 4. When the SW bit in DDCSWR changes from 1 to 0 1 Transmit mode [Setting conditions] 1. When 1 is written by software (in cases other than clearing conditions 3 and 4) 2. When 1 is written in TRS after reading TRS = 0 (in case of clearing conditions 3 and 4) 3. When 1 is received as the R/W bit of the first frame in I 2C bus format slave mode (Initial value) (Initial value) 814 Bit 3--Acknowledge Bit Judgement Selection (ACKE): Specifies whether the value of the acknowledge bit returned from the receiving device when using the I2C bus format is to be ignored and continuous transfer is performed, or transfer is to be aborted and error handling, etc., performed if the acknowledge bit is 1. When the ACKE bit is 0, the value of the received acknowledge bit is not indicated by the ACKB bit, which is always 0. In the H8S/2633 Series, the DTC* can be used to perform continuous transfer. The DTC* is activated when the IRTR interrupt flag is set to 1 (IRTR is one of two interrupt flags, the other being IRIC). When the ACKE bit is 0, the TDRE, IRIC, and IRTR flags are set on completion of data transmission, regardless of the value of the acknowledge bit. When the ACKE bit is 1, the TDRE, IRIC, and IRTR flags are set on completion of data transmission when the acknowledge bit is 0, and the IRIC flag alone is set on completion of data transmission when the acknowledge bit is 1. When the DTC* is activated, the TDRE, IRIC, and IRTR flags are cleared to 0 after the specified number of data transfers have been executed. Consequently, interrupts are not generated during continuous data transfer, but if data transmission is completed with a 1 acknowledge bit when the ACKE bit is set to 1, the DTC* is not activated and an interrupt is generated, if enabled. Depending on the receiving device, the acknowledge bit may be significant, in indicating completion of processing of the received data, for instance, or may be fixed at 1 and have no significance. Note: * The DTC function is not available in the H8S/2695. Bit 3 ACKE 0 1 Description The value of the acknowledge bit is ignored, and continuous transfer is performed If the acknowledge bit is 1, continuous transfer is interrupted (Initial value) Bit 2--Bus Busy (BBSY): The BBSY flag can be read to check whether the I2C bus (SCL, SDA) is busy or free. In master mode, this bit is also used to issue start and stop conditions. A high-to-low transition of SDA while SCL is high is recognized as a start condition, setting BBSY to 1. A low-to-high transition of SDA while SCL is high is recognized as a stop condition, clearing BBSY to 0. To issue a start condition, use a MOV instruction to write 1 in BBSY and 0 in SCP. A retransmit start condition is issued in the same way. To issue a stop condition, use a MOV instruction to write 0 in BBSY and 0 in SCP. It is not possible to write to BBSY in slave mode; the I2C bus interface must be set to master transmit mode before issuing a start condition. MST and TRS should both be set to 1 before writing 1 in BBSY and 0 in SCP. 815 Bit 2 BBSY 0 Description Bus is free [Clearing condition] When a stop condition is detected 1 Bus is busy [Setting condition] When a start condition is detected (Initial value) Bit 1--I2C Bus Interface Interrupt Request Flag (IRIC): Indicates that the I2C bus interface has issued an interrupt request to the CPU. IRIC is set to 1 at the end of a data transfer, when a slave address or general call address is detected in slave receive mode, when bus arbitration is lost in master transmit mode, and when a stop condition is detected. IRIC is set at different times depending on the FS bit in SAR and the WAIT bit in ICMR. See section 18.3.7, IRIC Setting Timing and SCL Control. The conditions under which IRIC is set also differ depending on the setting of the ACKE bit in ICCR. IRIC is cleared by reading IRIC after it has been set to 1, then writing 0 in IRIC. When the DTC* is used, IRIC is cleared automatically and transfer can be performed continuously without CPU intervention. Note: * The DTC function is not available in the H8S/2695. 816 Bit 1 IRIC 0 Description Waiting for transfer, or transfer in progress [Clearing conditions] 1. When 0 is written in IRIC after reading IRIC = 1 2. When ICDR is written or read by the DTC* (When the TDRE or RDRF flag is cleared to 0) (This is not always a clearing condition; see the description of DTC* operation for details) 1 Interrupt requested [Setting conditions] * I 2C bus format master mode 1. When a start condition is detected in the bus line state after a start condition is issued (when the TDRE flag is set to 1 because of first frame transmission) 2. When a wait is inserted between the data and acknowledge bit when WAIT = 1 3. At the end of data transfer (at the rise of the 9th transmit/receive clock pulse, or at the fall of the 8th transmit/receive clock pulse when using wait insertion) 4. When a slave address is received after bus arbitration is lost (when the AL flag is set to 1) 5. When 1 is received as the acknowledge bit when the ACKE bit is 1 (when the ACKB bit is set to 1) I 2C bus format slave mode 1. When the slave address (SVA, SVAX) matches (when the AAS and AASX flags are set to 1) and at the end of data transfer up to the subsequent retransmission start condition or stop condition detection (when the TDRE or RDRF flag is set to 1) 2. When the general call address is detected (when FS = 0 and the ADZ flag is set to 1) and at the end of data transfer up to the subsequent retransmission start condition or stop condition detection (when the TDRE or RDRF flag is set to 1) 3. When 1 is received as the acknowledge bit when the ACKE bit is 1 (when the ACKB bit is set to 1) 4. When a stop condition is detected (when the STOP or ESTP flag is set to 1) Synchronous serial format 1. At the end of data transfer (when the TDRE or RDRF flag is set to 1) 2. When a start condition is detected with serial format selected When any other condition arises in which the TDRE or RDRF flag is set to 1 Note: * The DTC function is not available in the H8S/2695. 817 (Initial value) * * When, with the I2C bus format selected, IRIC is set to 1 and an interrupt is generated, other flags must be checked in order to identify the source that set IRIC to 1. Although each source has a corresponding flag, caution is needed at the end of a transfer. When the TDRE or RDRF internal flag is set, the readable IRTR flag may or may not be set. The IRTR flag (the DTC start request flag) is not set at the end of a data transfer up to detection of a retransmission start condition or stop condition after a slave address (SVA) or general call address match in I 2C bus format slave mode. Even when the IRIC flag and IRTR flag are set, the TDRE or RDRF internal flag may not be set. The IRIC and IRTR flags are not cleared at the end of the specified number of transfers in continuous transfer using the DTC*. The TDRE or RDRF flag is cleared, however, since the specified number of ICDR reads or writes have been completed. Table 18-3 shows the relationship between the flags and the transfer states. Note: * The DTC function is not available in the H8S/2695. Table 18-3 Flags and Transfer States MST TRS BBSY ESTP STOP IRTR 1/0 1 1 1 1 0 0 0 0 0 1/0 1 1 1/0 1/0 0 0 0 0 1/0 0 0 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 AASX AL 0 0 0 0 0 1/0 0 0 1 0 0 0 0 0 0 1 0 0 0 0 AAS 0 0 0 0 0 1/0 1 1 0 0 ADZ 0 0 0 0 0 1/0 0 1 0 0 ACKB State 0 0 0 0/1 0/1 0 0 0 0 0/1 Idle state (flag clearing required) Start condition issuance Start condition established Master mode wait Master mode transmit/receive end Arbitration lost SAR match by first frame in slave mode General call address match SARX match Slave mode transmit/receive end (except after SARX match) Slave mode transmit/receive end (after SARX match) Stop condition detected 0 0 0 1/0 1 1/0 1 1 0 0 0 1/0 0 0 1/0 1 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 1 0/1 818 Bit 0--Start Condition/Stop Condition Prohibit (SCP): Controls the issuing of start and stop conditions in master mode. To issue a start condition, write 1 in BBSY and 0 in SCP. A retransmit start condition is issued in the same way. To issue a stop condition, write 0 in BBSY and 0 in SCP. This bit is always read as 1. If 1 is written, the data is not stored. Bit 0 SCP 0 1 Description Writing 0 issues a start or stop condition, in combination with the BBSY flag Reading always returns a value of 1 Writing is ignored (Initial value) 18.2.6 Bit I2C Bus Status Register (ICSR) : 7 ESTP 0 R/(W)* 6 STOP 0 R/(W)* 5 IRTR 0 R/(W)* 4 AASX 0 R/(W)* 3 AL 0 R/(W)* 2 AAS 0 R/(W)* 1 ADZ 0 R/(W)* 0 ACKB 0 R/W Initial value : R/W : Note: * Only 0 can be written, for flag clearing. ICSR is an 8-bit readable/writable register that performs flag confirmation and acknowledge confirmation and control. ICSR is initialized to H'00 by a reset and in hardware standby mode. 819 Bit 7--Error Stop Condition Detection Flag (ESTP): Indicates that a stop condition has been detected during frame transfer in I2C bus format slave mode. Bit 7 ESTP 0 Description No error stop condition [Clearing conditions] 1. When 0 is written in ESTP after reading ESTP = 1 2. When the IRIC flag is cleared to 0 1 * In I 2C bus format slave mode Error stop condition detected [Setting condition] When a stop condition is detected during frame transfer * In other modes No meaning (Initial value) Bit 6--Normal Stop Condition Detection Flag (STOP): Indicates that a stop condition has been detected after completion of frame transfer in I2C bus format slave mode. Bit 6 STOP 0 Description No normal stop condition [Clearing conditions] 1. When 0 is written in STOP after reading STOP = 1 2. When the IRIC flag is cleared to 0 1 * In I 2C bus format slave mode Normal stop condition detected [Setting condition] When a stop condition is detected after completion of frame transfer * In other modes No meaning (Initial value) Bit 5--I2C Bus Interface Continuous Transmission/Reception Interrupt Request Flag (IRTR): Indicates that the I2C bus interface has issued an interrupt request to the CPU, and the source is completion of reception/transmission of one frame in continuous transmission/reception for which DTC* activation is possible. When the IRTR flag is set to 1, the IRIC flag is also set to 1 at the same time. 820 IRTR flag setting is performed when the TDRE or RDRF flag is set to 1. IRTR is cleared by reading IRTR after it has been set to 1, then writing 0 in IRTR. IRTR is also cleared automatically when the IRIC flag is cleared to 0. Bit 5 IRTR 0 Description Waiting for transfer, or transfer in progress [Clearing conditions] 1. When 0 is written in IRTR after reading IRTR = 1 2. When the IRIC flag is cleared to 0 1 Continuous transfer state [Setting conditions] * * In I 2C bus interface slave mode When the TDRE or RDRF flag is set to 1 when AASX = 1 In other modes When the TDRE or RDRF flag is set to 1 (Initial value) Note: * The DTC function is not available in the H8S/2695. Bit 4--Second Slave Address Recognition Flag (AASX): In I2C bus format slave receive mode, this flag is set to 1 if the first frame following a start condition matches bits SVAX6 to SVAX0 in SARX. AASX is cleared by reading AASX after it has been set to 1, then writing 0 in AASX. AASX is also cleared automatically when a start condition is detected. Bit 4 AASX 0 Description Second slave address not recognized [Clearing conditions] 1. When 0 is written in AASX after reading AASX = 1 2. When a start condition is detected 3. In master mode 1 Second slave address recognized [Setting condition] When the second slave address is detected in slave receive mode and FSX = 0 (Initial value) Bit 3--Arbitration Lost (AL): This flag indicates that arbitration was lost in master mode. The I2C bus interface monitors the bus. When two or more master devices attempt to seize the bus at nearly the same time, if the I2C bus interface detects data differing from the data it sent, it sets AL to 1 to indicate that the bus has been taken by another master. 821 AL is cleared by reading AL after it has been set to 1, then writing 0 in AL. In addition, AL is reset automatically by write access to ICDR in transmit mode, or read access to ICDR in receive mode. Bit 3 AL 0 Description Bus arbitration won [Clearing conditions] 1. When ICDR data is written (transmit mode) or read (receive mode) 2. When 0 is written in AL after reading AL = 1 1 Arbitration lost [Setting conditions] 1. If the internal SDA and SDA pin disagree at the rise of SCL in master transmit mode 2. If the internal SCL line is high at the fall of SCL in master transmit mode (Initial value) Bit 2--Slave Address Recognition Flag (AAS): In I2C bus format slave receive mode, this flag is set to 1 if the first frame following a start condition matches bits SVA6 to SVA0 in SAR, or if the general call address (H'00) is detected. AAS is cleared by reading AAS after it has been set to 1, then writing 0 in AAS. In addition, AAS is reset automatically by write access to ICDR in transmit mode, or read access to ICDR in receive mode. Bit 2 AAS 0 Description Slave address or general call address not recognized [Clearing conditions] 1. When ICDR data is written (transmit mode) or read (receive mode) 2. When 0 is written in AAS after reading AAS = 1 3. In master mode 1 Slave address or general call address recognized [Setting condition] When the slave address or general call address is detected in slave receive mode and FS = 0 (Initial value) 822 Bit 1--General Call Address Recognition Flag (ADZ): In I2C bus format slave receive mode, this flag is set to 1 if the first frame following a start condition is the general call address (H'00). ADZ is cleared by reading ADZ after it has been set to 1, then writing 0 in ADZ. In addition, ADZ is reset automatically by write access to ICDR in transmit mode, or read access to ICDR in receive mode. Bit 1 ADZ 0 Description General call address not recognized [Clearing conditions] 1. When ICDR data is written (transmit mode) or read (receive mode) 2. When 0 is written in ADZ after reading ADZ = 1 3. In master mode 1 General call address recognized [Setting condition] When the general call address is detected in slave receive mode and (FSX = 0 or FS = 0) (Initial value) Bit 0--Acknowledge Bit (ACKB): Stores acknowledge data. In transmit mode, after the receiving device receives data, it returns acknowledge data, and this data is loaded into ACKB. In receive mode, after data has been received, the acknowledge data set in this bit is sent to the transmitting device. When this bit is read, in transmission (when TRS = 1), the value loaded from the bus line (returned by the receiving device) is read. In reception (when TRS = 0), the value set by internal software is read. Bit 0 ACKB 0 Description Receive mode: 0 is output at acknowledge output timing (Initial value) Transmit mode: Indicates that the receiving device has acknowledged the data (signal is 0) 1 Receive mode: 1 is output at acknowledge output timing Transmit mode: Indicates that the receiving device has not acknowledged the data (signal is 1) 823 18.2.7 Bit Serial Control Register X (SCRX) : 7 -- 0 R/W 6 IICX1 0 R/W 5 IICX0 0 R/W 4 IICE 0 R/W 3 FLSHE 0 R/W 2 -- 0 R/W 1 -- 0 R/W 0 -- 0 R/W Initial value : R/W : SCRX is an 8-bit readable/writable register that controls register access, the I2C interface operating mode (when the on-chip IIC option is included), and on-chip flash memory control (FZTAT versions). If a module controlled by SCRX is not used, do not write 1 to the corresponding bit. SCRX is initialized to H'00 by a reset and in hardware standby mode. Bit 7--Reserved: Do not set 1. Bits 6 and 5--I2C Transfer Select 1 and 0 (IICX1 and IICX0): These bits, together with bits CKS2 to CKS0 in ICMR of IIC1 and IIC0, select the transfer rate in master mode. For details, see section 18.2.4, I2C Bus Mode Register (ICMR). Bit 4--I2C Master Enable (IICE): Controls CPU access to the I2C bus interface data and control registers (ICCR, ICSR, ICDR/SARX, and ICMR/SAR). Bit 4 IICE 0 1 Description CPU access to I 2C bus interface data and control registers is disabled CPU access to I C bus interface data and control registers is enabled 2 (Initial value) Bit 3--Flash Memory Control Register Enable (FLSHE): Controls the operation of the flash memory in F-ZTAT versions. For details, see section 22, ROM. Bits 2 to 0--Reserved: Do not set 1. 824 18.2.8 Bit DDC Switch Register (DDCSWR) : 7 -- 0 6 -- 0 5 -- 0 4 -- 0 3 CLR3 1 W*2 2 CLR2 1 W*2 1 CLR1 1 W*2 0 CLR0 1 W*2 Initial value : R/W : R/(W)*1 R/(W)*1 R/(W)*1 R/(W)*1 Notes: *1 Should always be written with 0. *2 Always read as 1. DDCSWR is an 8-bit readable/writable register that is used to initialize the IIC module. DDCSWR is initialized to H'0F by a reset and in hardware standby mode. Bits 7 to 4--Reserved: Should always be written with 0. Bits 3 to 0--IIC Clear 3 to 0 (CLR3 to CLR0): These bits control initialization of the internal state of IIC0 and IIC1. These bits can only be written to; if read they will always return a value of 1. When a write operation is performed on these bits, a clear signal is generated for the internal latch circuit of the corresponding module(s), and the internal state of the IIC module(s) is initialized. The write data for these bits is not retained. To perform IIC clearance, bits CLR3 to CLR0 must be written to simultaneously using an MOV instruction. Do not use a bit manipulation instruction such as BCLR. When clearing is required again, all the bits must be written to in accordance with the setting. Bit 3 CLR3 0 Bit 2 CLR2 0 1 Bit 1 CLR1 -- 0 Bit 0 CLR0 -- 0 1 1 0 1 1 -- -- -- Description Setting prohibited Setting prohibited IIC0 internal latch cleared IIC1 internal latch cleared IIC0 and IIC1 internal latches cleared Invalid setting 825 18.2.9 Bit Module Stop Control Register B (MSTPCRB) : 7 1 R/W 6 1 R/W 5 1 R/W 4 1 R/W 3 1 R/W 2 1 R/W 1 1 R/W 0 1 R/W MSTPB7 MSTPB6 MSTPB5 MSTPB4 MSTPB3 MSTPB2 MSTPB1 MSTPB0 Initial value : R/W : MSTPCRB is an 8-bit readable/writable register that perform module stop mode control. When the MSTPB4 or MSTPB3 bit is set to 1, operation of the corresponding IIC channel is halted at the end of the bus cycle, and a transition is made to module stop mode. For details, see section 24.5, Module Stop Mode. MSTPCRB is initialized to H'FF by a power-on reset and in hardware standby mode. It is not initialized by a manual reset and in software standby mode. Bit 4--Module Stop (MSTPB4): Specifies IIC channel 0 module stop mode. Bit 4 MSTPB4 0 1 Description IIC channel 0 module stop mode is cleared IIC channel 0 module stop mode is set (Initial value) Bit 3--Module Stop (MSTPB3): Specifies IIC channel 1 module stop mode. Bit 3 MSTPB3 0 1 Description IIC channel 1 module stop mode is cleared IIC channel 1 module stop mode is set (Initial value) 826 18.3 18.3.1 Operation I2C Bus Data Format The I2C bus interface has serial and I2C bus formats. The I2C bus formats are addressing formats with an acknowledge bit. These are shown in figures 18-3 (a) and (b). The first frame following a start condition always consists of 8 bits. The serial format is a non-addressing format with no acknowledge bit. Although start and stop conditions must be issued, this format can be used as a synchronous serial format. This is shown in figure 18-4. Figure 18-5 shows the I2C bus timing. The symbols used in figures 18-3 to 18-5 are explained in table 18-4. (a) I2C bus format (FS = 0 or FSX = 0) S 1 SLA 7 1 R/W 1 A 1 DATA n A 1 m A/A 1 P 1 n: transfer bit count (n = 1 to 8) m: transfer frame count (m 1) (b) I2C bus format (start condition retransmission, FS = 0 or FSX = 0) S 1 SLA 7 1 R/W 1 A 1 DATA n1 m1 A/A 1 S 1 SLA 7 1 R/W 1 A 1 DATA n2 m2 A/A 1 P 1 n1 and n2: transfer bit count (n1 and n2 = 1 to 8) m1 and m2: transfer frame count (m1 and m2 1) Figure 18-3 I 2C Bus Data Formats (I2C Bus Formats) FS = 1 and FSX = 1 S 1 DATA 8 1 DATA n m P 1 n: transfer bit count (n = 1 to 8) m: transfer frame count (m 1) Figure 18-4 I 2C Bus Data Format (Serial Format) 827 SDA SCL S 1-7 SLA 8 R/W 9 A 1-7 DATA 8 9 A 1-7 DATA 8 9 A/A P Figure 18-5 I 2C Bus Timing Table 18-4 I2C Bus Data Format Symbols Legend S SLA R/W A DATA P Start condition. The master device drives SDA from high to low while SCL is high Slave address, by which the master device selects a slave device Indicates the direction of data transfer: from the slave device to the master device when R/W is 1, or from the master device to the slave device when R/W is 0 Acknowledge. The receiving device (the slave in master transmit mode, or the master in master receive mode) drives SDA low to acknowledge a transfer Transferred data. The bit length is set by bits BC2 to BC0 in ICMR. The MSB-first or LSB-first format is selected by bit MLS in ICMR Stop condition. The master device drives SDA from low to high while SCL is high 828 18.3.2 Initial Setting At startup the following procedure is used to initialize the IIC. Start initialization Set MSTP4 = 0 (IIC0) MSTP3 = 0 (IIC1) (MSTPCRL) Set IICE = 1 (STCR) Set DDCSWR Set ICE = 0 (ICCR) Set SAR and SARX Set ICE = 1 (ICCR) Set ICSR Set STCR Set IMCR Set ICCR Transmit/receive start Clear module stop. Enable CPU access by IIC control register and data register. Set IIC transfer format. (SWE, SW, IE, IF) Enable SAR and SARX access. Set transfer format for 1st slave address, 2nd slave address, and IIC (SVA8-SVA0, FS, SVAX6-SVAX0, FSX). Enable IMCR and IMDR access. Use SCL and SDA pins is IIC port. Set acknowledge bit (ACKB). Set transfer rate (IICX). Set transfer format, wait insertion, and transfer rate (MLS, WAIT, CKS2-CKS0). Set interrupt enable, transfer mode, and acknowledge judgment (IEIC, MST, TRS, ACKE). Figure 18-6 Flowchart for IIC Initialization (Example) Note: The ICMR register should be written to only after transmit or receive operations have completed. Writing to the ICMR register while a transmit or receive operation is in progress could cause an erroneous value to be written to bit counter bits BC2 to BC0. This could result in improper operation. 18.3.3 Master Transmit Operation In I2C bus format master transmit mode, the master device outputs the transmit clock and transmit data, and the slave device returns an acknowledge signal. Figure 18-7 is a flowchart showing an example of the master transmit mode. 829 Start Initial settings [1] Initial settings. Read BBSY flag in ICCR [2] Determine status of SCL and SDA lines. No BBSY = 0? Yes Set MST = 1 and TRS = 1 (ICCR) Write BBSY = 1 and SCP = 0 (ICCR) [3] Set to master transmit mode. [4] Generate start condition. Read IRIC flag in ICCR [5] Wait for start condition to be met. No IRIC = 1? Yes Write transmit data to ICDR Clear IRIC flag in ICCR [6] Set 1st byte (slave address + R/W) transmit data. (Perform ICDR write and IRIC flag clear operations continuously.) Read IRIC flag in ICCR [7] Wait for end of 1 byte transmission. No IRIC = 1? Yes Read ACKB bit in ICSR ACKB = 0? Yes Transmit mode? Yes Write transmit data to ICDR Clear IRIC flag in ICCR [9] Set transmit data for 2nd byte onward. (Perform ICDR write and IRIC flag clear operations continuously.) No Master receive mode No [8] Judge acknowledge signal from specified. slave device. Read IRIC flag in ICCR [10] Wait for end of 1 byte transmission. No IRIC = 1? Yes Read ACKB bit in ICSR [11] Judge end of transmission. No Transmit complete? (ACKB = 1?) Yes Clear IRIC flag in ICCR [12] Generate stop condition. Write BBSY = 0 and SCP = 0 (ICCR) End Figure 18-7 Flowchart for Master Transmit Mode (Example) 830 The procedure for transmitting data sequentially, synchronized with ICDR (ICDRT) write operations, is described below. [1] [2] [3] [4] [5] [6] Perform initial settings as described in section 18.3.2, Initial Setting. Read the BBSY flag in ICCR to confirm that the bus is free. Set bits MST and TSR in ICCR to 1 to switch to the master transmit mode. Write 1 to BBSY and 0 to SCP in ICCR. This changes SDA from high to low when SCL is high, and generates the start condition. The IRIC and IRTR flags are set to 1 when the start condition is generated. If the IEIC bit in ICCR has been set to 1, an interrupt request is sent to the CPU. After the start condition is detected, write the data (slave address + R/W) to ICDR. With the I2C bus format (when the FS bit in SAR or the FSX bit in SARX is 0), the first frame data following the start condition indicates the 7-bit slave address and transmit/receive direction (R/W). Next, clear the IRIC flag to 0 to indicate the end of the transfer. Continue successively writing to ICDR and clearing the IRIC flag to ensure that processing of other interrupts does not intervene. If the time required to transmit one byte of data elapses by the time the IRIC flag is cleared, it will not be possible to determine the end of the transmission. The master device sequentially sends the transmit clock and the data written to ICDR. The selected slave device (i.e., the slave device with the matching slave address) drives SDA low at the 9th transmit clock pulse and returns an acknowledge signal. When one frame of data has been transmitted, the IRIC flag is set to 1 at the rise of the 9th transmit clock pulse. After one frame has been transmitted, SCL is automatically fixed low in synchronization with the internal clock until the next transmit data is written. Read the ACKB bit in ICSR to confirm that its value is 0. If the slave device has not returned an acknowledge signal and the value of ACKB is 1, perform the transmit end processing described in step [12] and then recommence the transmit operation from the beginning. Write the transmit data to ICDR. Next, clear the IRIC flag to 0 to indicate the end of the transfer. Then continue successively writing to ICDR and clearing the IRIC flag as described in step [6]. Transmission of the next frame is synchronized with the internal clock. When one frame of data has been transmitted, the IRIC flag is set to 1 at the rise of the 9th transmit clock pulse. After one frame has been transmitted, SCL is automatically fixed low in synchronization with the internal clock until the next transmit data is written. Read the ACKB bit in ICSR to confirm that the slave device has returned an acknowledge signal and the value of ACKB is 0. If the slave device has not returned an acknowledge signal and the value of ACKB is 1, perform the transmit end processing described in step [12]. Clear the IRIC flag to 0. Write 0 to the ACKE bit in ICCR and clear the received ACKB bit to 0. [7] [8] [9] [10] [11] [12] 831 Write 0 to BBSY and SCP in ICCR. This changes SDA from low to high when SCL is high, and generates the stop condition. Generate start condition SCL (Master output) SDA (Master output) SDA (Slave output) ICDRE IRIC IRTR ICDRT ICDRS Note: ICDR data setting timing Normal operation Improper operation will result. User processing [4] Write BBSY = 1 and SCP = 0 (generate start condition) [6] ICDR write [6] IRIC clearance [9] ICDR write [9] IRIC clearance Address + R/W Address + R/W Data 1 Data 1 Interrupt request Interrupt request 1 Bit 7 2 Bit 6 3 Bit 5 4 Bit 4 5 Bit 3 6 Bit 2 7 Bit 1 8 Bit 0 R/W [7] A 9 1 Bit 7 2 Bit 6 Slave address [5] Data 1 Figure 18-8 Example of Master Transmit Mode Operation Timing (MLS = WAIT = 0) Generate start condition SCL (Master output) SDA (Master output) 8 Bit 0 Data 1 SDA (Slave output) ICDRE IRIC IRTR ICDR Data 1 Data 2 [7] A 9 1 Bit 7 2 3 4 Bit 4 5 Bit 3 6 Bit 2 7 8 9 Bit 6 Bit 5 Bit 1 Bit 0 [10] A Data 2 User processing [9] ICDR write [9] IRIC clearance [11] ACKB read [12] Write BBSY = 0 and SCP = 0 (generate stop condition) [12] IRIC clearance Figure 18-9 Example of Master Transmit Mode Stop Condition Generation Timing (MLS = WAIT = 0) 832 18.3.4 Master Receive Operation In I2C bus format master receive mode, the master device outputs the receive clock, receives data, and returns an acknowledge signal. The slave device transmits data. The master device transmits the data containing the slave address + R/W (0: read) in the 1st frame after a start condition is generated in the master transmit mode. After the slave device is selected the switch to receive operation takes place. (1) Receive Operation Using Wait States Figures 18-10 and 18-11 are flowcharts showing examples of the master receive mode (WAIT = 1). 833 Master receive mode Set TRS = 0 (ICCR) Set ACKB = 0 (ICSR) Clear IRIC flag in ICCR Set WAIT = 1 (ICMR) Read ICDR [2] Receive start, dummy read. [1] Set to receive mode. Read IRIC flag in ICCR No IRIC = 1? Yes No IRTR = 1? Yes Final receive? No Read ICDR Clear IRIC flag in ICCR Yes [3] Receive wait state (IRIC set at falling edge of 8th clock cycle) or Wait for end of reception of 1 byte (IRIC set at rising edge of 9th clock cycle). [4] Data receive completed judgment. [5] Read receive data. [6] Clear IRIC flag (cancel wait state). Set ACKB = 1 (ICSR) 1 clock cycle wait state Set TRS = 1 (ICCR) Read ICDR Clear IRIC flag in ICCR [7] Set acknowledge data for final receive. [8] Wait time until TRS setting. [9] Set TRS to generate stop condition. [10] Read receive data. [11] Clear IRIC flag (cancel wait state). Read IRIC flag in ICCR No IRIC = 1? Yes IRTR = 1? No Clear IRIC flag in ICCR Yes [12] Receive wait state (IRIC set at falling edge of 8th clock cycle) or Wait for end of reception of 1 byte (IRIC set at rising edge of 9th clock cycle). [13] Data receive completed judgment. [14] Clear IRIC flag (cancel wait state). Set WAIT = 0 (ICMR) Clear IRIC flag in ICCR Read ICDR Write BBSY = 0 and SCP = 0 (ICCR) End [15] Cancel wait mode Clear IRIC flag. (IRIC flag should be cleared when WAIT = 0.) [16] Read final receive data. [17] Generate stop condition. Figure 18-10 Flowchart for Master Receive Mode (Receiving Multiple Bytes) (WAIT = 1) (Example) 834 Master receive mode Set TRS = 0 (ICCR) Set ACKB = 0 (ICSR) [1] Clear IRIC flag in ICCR Set WAIT = 1 (ICMR) Read ICDR [2] Receive start, dummy read. Set to receive mode Read IRIC flag in ICCR No IRIC = 1? Yes Set ACKB = 1 (ICSR) Set TRS = 1 (ICCR) Clear IRIC flag in ICCR [3] Receive wait state (IRIC set at falling edge of 8th clock cycle) or Wait for end of reception of 1 byte (IRIC set at rising edge of 9th clock cycle). [7] [9] Set acknowledge data for final receive. Set TRS to generate stop condition. [11] Clear IRIC flag (cancel wait state). Read IRIC flag in ICCR No [12] Wait for end of reception of 1 byte. (IRIC set at rising edge of 9th clock cycle) IRIC = 1? Yes Set WAIT = 0 (ICMR) Clear IRIC flag in ICCR Read ICDR Write BBSY = 0 and SCP = 0 (ICCR) End [15] Cancel wait mode Clear IRIC flag. (IRIC flag should be cleared when WAIT = 0.) [16] Read final receive data. [17] Generate stop condition. Figure 18-11 Flowchart for Master Receive Mode (Receiving 1 Byte) (WAIT = 1) (Example) The procedure for receiving data sequentially, using the wait states (WAIT bit) for synchronization with ICDR (ICDRR) read operations, is described below. The procedure below describes the operation for receiving multiple bytes. Note that some of the steps are omitted when receiving only 1 byte. Refer to figure 18-11 for details. [1] Clear the TRS bit in ICCR to 0 to switch from transmit mode to receive mode. Clear the ACKB bit in ICSR to 0 (acknowledge data setting). Clear the HNDS bit in ICXR to 0 (cancel handshake function). Clear the IRIC flag to 0, then set the WAIT bit in ICMR to 1. 835 [2] When ICDR is read (dummy data read), reception is started, and the receive clock is output, and data received, in synchronization with the internal clock. [3] The IRIC flag is set to 1 by the following two conditions. At that point, an interrupt request is issued to the CPU if the IEIC bit in ICCR is set to 1. 1. The flag is set at the falling edge of the 8th clock cycle of the receive clock for 1 frame. SCL is automatically held low, in synchronization with the internal clock, until the IRIC flag is cleared. 2. The flag is set at the rising edge of the 9th clock cycle of the receive clock for 1 frame. The IRIC flag and ICDRF flag are set to 1, indicating that reception of 1 frame of data has ended. The master device continues to output the receive clock for the receive data. [4] Read the IRTR flag in ICSR. If the IRTR flag value is 0, the wait state is cancelled by clearing the IRIC flag as described in step [6] below. If the IRTR flag value is 1 and the next receive data is the final receive data, perform the end processing described in step [7] below. [5] If the IRTR flag value is 1, read the ICDR receive data. [6] Clear the IRTR flag to 0. If condition [3]-1 is true, the master device drives SDA to low level and returns an acknowledge signal when the receive clock outputs the 9th clock cycle. Further data can be received by repeating steps [3] through [6]. [7] Set the ACKB bit in ICSR to 1 to set the acknowledge data for the final receive. [8] Wait for at least 1 clock cycle after the IRIC flag is set to 1 and then wait for the rising edge of the 1st clock cycle of the next receive data. [9] Set the TSR bit in ICCR to 1 to switch from the receive mode to the transmit mode. The TSR bit setting value at this point becomes valid when the rising edge of the next 9th clock cycle is input. [10] Read the ICDR receive data. [11] Clear the IRTR flag to 0. [12] The IRIC flag is set to 1 by the following two conditions. 1. The flag is set at the falling edge of the 8th clock cycle of the receive clock for 1 frame. SCL is automatically held low, in synchronization with the internal clock, until the IRIC flag is cleared. 2. The flag is set at the rising edge of the 9th clock cycle of the receive clock for 1 frame. The IRIC flag and ICDRF flag are set to 1, indicating that reception of 1 frame of data has ended. The master device continues to output the receive clock for the receive data. [13] Read the IRTR flag in ICSR. If the IRTR flag value is 0, the wait state is cancelled by clearing the IRIC flag as described in step [14] below. If the IRTR flag value is 1 and the receive operation has finished, perform the issue stop condition processing described in step [15] below. [14] If the IRTR flag value is 0, clear the IRIC flag to 0 to cancel the wait state. Return to reading the IRIC flag, as described in step [12], to detect the end of the receive operation. [15] Clear the WAIT bit in ICMR to 0 to cancel the wait mode. Then clear the IRIC flag to 0. The IRIC flag should be cleared when the value of WAIT is 0. (The stop condition may not be 836 output properly when the issue stop condition instruction is executed if the WAIT bit was cleared to 0 after the IRIC flag is cleared to 0.) [16] Read the final receive data in ICDR. [17] Write 0 to BBSY and SCP in ICCR. This changes SDA from low to high when SCL is high, and generates the stop condition. Master transmit mode SCL (master output) SDA (slave output) Master receive mode 9 A 1 2 3 4 5 6 7 8 9 1 2 3 4 5 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Data 1 Bit 1 Bit 0 [3] A [3] Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Data 2 SDA (master output) IRIC IRTR ICDR [4] IRTR = 0 [4] IRTR = 1 Data 1 User processing [2] ICDR read (dummy read) [1] TRS cleared to 0 IRIC clearance [6] IRIC clearance (cancel wait) [5] ICDR read (data 1) [6] IRIC clearance Figure 18-12 Example of Master Receive Mode Operation Timing (MLS = ACKB = 0, WAIT = 1) [8] 1 clock cycle wait time SCL (master output) Stop condition generated 4 5 6 7 8 9 8 9 1 2 3 SDA Bit 0 (slave output) Data 2 [3] SDA (master output) IRIC IRTR ICDR [4] IRTR = 0 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 [3] A Data 3 Bit 1 Bit 0 [12] A [12] [4] IRTR = 1 [13] IRTR = 0 [13] IRTR = 1 Data 1 Data 2 Data 3 User processing [6] IRIC clearance [11] IRIC clearance [10] ICDR read (data 2) [9] TRS set to 1 [14] IRIC clearance [15] WAIT cleared to 0 IRIC clearance [17] Stop condition issued [7] ACKB set to 1 [16] ICDR read (data 3) Figure 18-13 Example of Master Receive Mode Stop Condition Generation Timing (MLS = ACKB = 0, WAIT = 1) 837 18.3.5 Slave Receive Operation In slave receive mode, the master device outputs the transmit clock and transmit data, and the slave device returns an acknowledge signal. The reception procedure and operations in slave receive mode are described below. (1) Set the ICE bit in ICCR to 1. Set the MLS bit in ICMR and the MST and TRS bits in ICCR according to the operating mode. (2) When the start condition output by the master device is detected, the BBSY flag in ICCR is set to 1. (3) When the slave address matches in the first frame following the start condition, the device operates as the slave device specified by the master device. If the 8th data bit (R/W) is 0, the TRS bit in ICCR remains cleared to 0, and slave receive operation is performed. (4) At the 9th clock pulse of the receive frame, the slave device drives SDA low and returns an acknowledge signal. At the same time, the IRIC flag in ICCR is set to 1. If the IEIC bit in ICCR has been set to 1, an interrupt request is sent to the CPU. If the RDRF internal flag has been cleared to 0, it is set to 1, and the receive operation continues. If the RDRF internal flag has been set to 1, the slave device drives SCL low from the fall of the receive clock until data is read into ICDR. (5) Read ICDR and clear the IRIC flag in ICCR to 0. The RDRF flag is cleared to 0. Receive operations can be performed continuously by repeating steps (4) and (5). When SDA is changed from low to high when SCL is high, and the stop condition is detected, the BBSY flag in ICCR is cleared to 0. 838 Start condition issuance SCL (master output) SCL (slave output) SDA (master output) SDA (slave output) Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Bit 7 Bit 6 1 2 3 4 5 6 7 8 9 1 2 Slave address R/W [4] A Data 1 RDRF IRIC Interrupt request generation Address + R/W ICDRS ICDRR Address + R/W User processing [5] ICDR read [5] IRIC clearance Figure 18-14 Example of Slave Receive Mode Operation Timing (1) (MLS = ACKB = 0) 839 SCL (master output) SCL (slave output) SDA (master output) 7 8 9 1 2 3 4 5 6 7 8 9 Bit 1 Bit 0 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Data 1 SDA (slave output) [4] Data 2 [4] A A RDRF IRIC Interrupt request generation Data 1 Data 2 Interrupt request generation ICDRS ICDRR Data 1 Data 2 User processing [5] ICDR read [5] IRIC clearance Figure 18-15 Example of Slave Receive Mode Operation Timing (2) (MLS = ACKB = 0) 18.3.6 Slave Transmit Operation In slave transmit mode, the slave device outputs the transmit data, while the master device outputs the receive clock and returns an acknowledge signal. The transmission procedure and operations in slave transmit mode are described below. (1) Set the ICE bit in ICCR to 1. Set the MLS bit in ICMR and the MST and TRS bits in ICCR according to the operating mode. (2) When the slave address matches in the first frame following detection of the start condition, the slave device drives SDA low at the 9th clock pulse and returns an acknowledge signal. At the same time, the IRIC flag in ICCR is set to 1. If the IEIC bit in ICCR has been set to 1, an interrupt request is sent to the CPU. If the 8th data bit (R/W) is 1, the TRS bit in ICCR is set to 1, and the mode changes to slave transmit mode automatically. The TDRF flag is set to 1. The slave device drives SCL low from the fall of the transmit clock until ICDR data is written. (3) After clearing the IRIC flag to 0, write data to ICDR. The TDRE internal flag is cleared to 0. The written data is transferred to ICDRS, and the TDRE internal flag and the IRIC and IRTR flags are set to 1 again. After clearing the IRIC flag to 0, write the next data to ICDR. The 840 slave device sequentially sends the data written into ICDR in accordance with the clock output by the master device at the timing shown in figure 18-16. (4) When one frame of data has been transmitted, the IRIC flag in ICCR is set to 1 at the rise of the 9th transmit clock pulse. If the TDRE internal flag has been set to 1, this slave device drives SCL low from the fall of the transmit clock until data is written to ICDR. The master device drives SDA low at the 9th clock pulse, and returns an acknowledge signal. As this acknowledge signal is stored in the ACKB bit in ICSR, this bit can be used to determine whether the transfer operation was performed normally. When the TDRE internal flag is 0, the data written into ICDR is transferred to ICDRS, transmission is started, and the TDRE internal flag and the IRIC and IRTR flags are set to 1 again. (5) To continue transmission, clear the IRIC flag to 0, then write the next data to be transmitted into ICDR. The TDRE flag is cleared to 0. Transmit operations can be performed continuously by repeating steps (4) and (5). To end transmission, write H'FF to ICDR to release SDA on the slave side. When SDA is changed from low to high when SCL is high, and the stop condition is detected, the BBSY flag in ICCR is cleared to 0. Slave receive mode SCL (master output) SDA (slave output) Slave transmit mode 8 9 1 2 3 4 5 6 7 8 9 1 2 SDA (slave output) SDA (slave output) R/W A [2] Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Bit 7 Bit 6 Data 1 A Data 2 TDRE [4] IRIC Interrupt request generation Interrupt request generation Interrupt request generation ICDRT Data 1 Data 2 ICDRS Data 1 Data 2 User processing [3] IRIC clearance [3] ICDR write [3] ICDR write [5] IRIC clearance [3] ICDR write Figure 18-16 Example of Slave Transmit Mode Operation Timing (MLS = 0) 841 18.3.7 IRIC Setting Timing and SCL Control The interrupt request flag (IRIC) is set at different times depending on the WAIT bit in ICMR, the FS bit in SAR, and the FSX bit in SARX. If the TDRE or RDRF internal flag is set to 1, SCL is automatically held low after one frame has been transferred; this timing is synchronized with the internal clock. Figure 18-17 shows the IRIC set timing and SCL control. (a) When WAIT = 0, and FS = 0 or FSX = 0 (I2C bus format, no wait) SCL 7 8 9 1 SDA IRIC 7 8 A 1 User processing Clear IRIC Write to ICDR (transmit) or read ICDR (receive) (b) When WAIT = 1, and FS = 0 or FSX = 0 (I2C bus format, wait inserted) SCL 8 9 1 SDA IRIC 8 A 1 User processing Clear IRIC Clear Write to ICDR (transmit) IRIC or read ICDR (receive) (c) When FS = 1 and FSX = 1 (synchronous serial format) SCL 7 8 1 SDA IRIC 7 8 1 User processing Clear IRIC Write to ICDR (transmit) or read ICDR (receive) Figure 18-17 IRIC Setting Timing and SCL Control 842 18.3.8 Operation Using the DTC* The I2C bus format provides for selection of the slave device and transfer direction by means of the slave address and the R/W bit, confirmation of reception with the acknowledge bit, indication of the last frame, and so on. Therefore, continuous data transfer using the DTC* must be carried out in conjunction with CPU processing by means of interrupts. Table 18-5 shows some examples of processing using the DTC*. These examples assume that the number of transfer data bytes is known in slave mode. Note: * The DTC function is not available in the H8S/2695. Table 18-5 Examples of Operation Using the DTC* Item Master Transmit Mode Master Receive Mode Slave Transmit Mode Reception by CPU (ICDR read) Slave Receive Mode Reception by CPU (ICDR read) Transmission by Slave address + Transmission by DTC* (ICDR write) CPU (ICDR write) R/W bit transmission/ reception Dummy data read Actual data transmission/ reception Dummy data (H'FF) write Last frame processing Transfer request processing after last frame processing -- Processing by CPU (ICDR read) -- -- Transmission by Reception by Transmission by Reception by DTC* DTC* (ICDR write) DTC* (ICDR read) DTC* (ICDR write) (ICDR read) -- Not necessary 1st time: Clearing by CPU 2nd time: End condition issuance by CPU Reception: Actual Transmission: Actual data count data count + 1 (+1 equivalent to slave address + R/W bits) -- Reception by CPU (ICDR read) Not necessary Processing by -- DTC* (ICDR write) Not necessary Reception by CPU (ICDR read) Automatic clearing Not necessary on detection of end condition during transmission of dummy data (H'FF) Reception: Actual Transmission: Actual data count data count + 1 (+1 equivalent to dummy data (H'FF)) Setting of number of DTC* transfer data frames Note: * The DTC function is not available in the H8S/2695. 843 18.3.9 Noise Canceler The logic levels at the SCL and SDA pins are routed through noise cancelers before being latched internally. Figure 18-18 shows a block diagram of the noise canceler circuit. The noise canceler consists of two cascaded latches and a match detector. The SCL (or SDA) input signal is sampled on the system clock, but is not passed forward to the next circuit unless the outputs of both latches agree. If they do not agree, the previous value is held. Sampling clock C SCL or SDA input signal D Latch Q D C Q Latch Match detector Internal SCL or SDA signal System clock period Sampling clock Figure 18-18 Block Diagram of Noise Canceler 18.3.10 Sample Flowcharts Figures 18-19 and 18-20 show sample flowcharts for using the I 2C bus interface in each mode. 844 Start Initialize Set MST = 0 and TRS = 0 in ICCR Set ACKB = 0 in ICSR Read IRIC in ICCR No [2] IRIC = 1? Yes [1] Read AAS and ADZ in ICSR AAS = 1 and ADZ = 0? Yes Read TRS in ICCR TRS = 0? Yes Last receive? No Read ICDR Clear IRIC in ICCR Yes No Slave transmit mode No General call address processing * Description omitted [3] [1] Select slave receive mode. [2] Wait for the first byte to be received (slave address). [3] Start receiving. The first read is a dummy read. [4] Read IRIC in ICCR No IRIC = 1? Yes [4] Wait for the transfer to end. [5] Set acknowledge data for the last receive. [6] Start the last receive. [7] Wait for the transfer to end. Set ACKB = 0 in ICSR Read ICDR Clear IRIC in ICCR [5] [6] [8] Read the last receive data. Read IRIC in ICCR No IRIC = 1? Yes Read ICDR Clear IRIC in ICCR End [7] [8] Figure 18-19 Flowchart for Slave Transmit Mode (Example) 845 Slave transmit mode Clear IRIC in ICCR [1] Set transmit data for the second and subsequent bytes. [1] [2] Wait for 1 byte to be transmitted. [3] Test for end of transfer. Clear IRIC in ICCR [4] Select slave receive mode. [5] Dummy read (to release the SCL line). Read IRIC in ICCR No [2] IRIC = 1? Yes Read ACKB in ICSR End of transmission (ACKB = 1)? Yes Set TRS = 0 in ICCR Read ICDR Clear IRIC in ICCR [4] [3] Write transmit data in ICDR No [5] End Figure 18-20 Flowchart for Slave Receive Mode (Example) 846 18.3.11 Initialization of Internal State The IIC has a function for forcible initialization of its internal state if a deadlock occurs during communication. Initialization is executed by (1) setting bits CLR3 to CLR0 in the DDCSWR register or (2) clearing the ICE bit. For details of settings for bits CLR3 to CLR0, see section 18.2.8, DDC Switch Register (DDCSWR). Scope of Initialization: The initialization executed by this function covers the following items: * TDRE and RDRF internal flags * Transmit/receive sequencer and internal operating clock counter * Internal latches for retaining the output state of the SCL and SDA pins (wait, clock, data output, etc.) The following items are not initialized: * Actual register values (ICDR, SAR, SARX, ICMR, ICCR, ICSR, DDCSWR, and STCR) * Internal latches used to retain register read information for setting/clearing flags in the ICMR, ICCR, ICSR, and DDCSWR registers * The value of the ICMR register bit counter (BC2 to BC0) * Generated interrupt sources (interrupt sources transferred to the interrupt controller) Notes on Initialization: * Interrupt flags and interrupt sources are not cleared, and so flag clearing measures must be taken as necessary. * Basically, other register flags are not cleared either, and so flag clearing measures must be taken as necessary. * When initialization is performed by means of the DDCSWR register, the write data for bits CLR3 to CLR0 is not retained. To perform IIC clearance, bits CLR3 to CLR0 must be written to simultaneously using an MOV instruction. Do not use a bit manipulation instruction such as BCLR. Similarly, when clearing is required again, all the bits must be written to simultaneously in accordance with the setting. * If a flag clearing setting is made during transmission/reception, the IIC module will stop transmitting/receiving at that point and the SCL and SDA pins will be released. When transmission/reception is started again, register initialization, etc., must be carried out as necessary to enable correct communication as a system. 847 The value of the BBSY bit cannot be modified directly by this module clear function, but since the stop condition pin waveform is generated according to the state and release timing of the SCL and SDA pins, the BBSY bit may be cleared as a result. Similarly, state switching of other bits and flags may also have an effect. To prevent problems caused by these factors, the following procedure should be used when initializing the IIC state. 1. Execute initialization of the internal state according to the setting of bits CLR3 to CLR0, or according to the ICE bit. 2. Execute a stop condition issuance instruction (write 0 to BBSY and SCP) to clear the BBST bit to 0, and wait for two transfer rate clock cycles. 3. Re-execute initialization of the internal state according to the setting of bits CLR3 to CLR0, or according to the ICE bit. 4. Initialize (re-set) the IIC registers. 18.4 Usage Notes * In master mode, if an instruction to generate a start condition is immediately followed by an instruction to generate a stop condition, neither condition will be output correctly. To output consecutive start and stop conditions, after issuing the instruction that generates the start condition, read the relevant ports, check that SCL and SDA are both low, then issue the instruction that generates the stop condition. Note that SCL may not yet have gone low when BBSY is cleared to 0. * Either of the following two conditions will start the next transfer. Pay attention to these conditions when reading or writing to ICDR. Write access to ICDR when ICE = 1 and TRS = 1 (including automatic transfer from ICDRT to ICDRS) Read access to ICDR when ICE = 1 and TRS = 0 (including automatic transfer from ICDRS to ICDRR) * Table 18-6 shows the timing of SCL and SDA output in synchronization with the internal clock. Timings on the bus are determined by the rise and fall times of signals affected by the bus load capacitance, series resistance, and parallel resistance. 848 Table 18-6 I2C Bus Timing (SCL and SDA Output) Item SCL output cycle time SCL output high pulse width SCL output low pulse width SDA output bus free time Start condition output hold time Retransmission start condition output setup time Stop condition output setup time Data output setup time (master) Data output setup time (slave) Data output hold time t SDAHO Symbol t SCLO t SCLHO t SCLLO t BUFO t STAHO t STASO t STOSO t SDASO Output Timing 28t cyc to 256tcyc 0.5tSCLO 0.5tSCLO 0.5tSCLO - 1t cyc 0.5tSCLO - 1t cyc 1t SCLO 0.5tSCLO + 2tcyc 1t SCLLO - 3tcyc 1t SCLL - 3t cyc 3t cyc ns Unit ns ns ns ns ns ns ns ns Notes Figure 25-33, figure 26-33 (reference) Note: * 6t cyc when IICX is 0, 12tcyc when 1. * SCL and SDA input is sampled in synchronization with the internal clock. The AC timing therefore depends on the system clock cycle tcyc, as shown in tables 25-10 and 26-10 in section 25 and 26, Electrical Characteristics. Note that the I2C bus interface AC timing specifications will not be met with a system clock frequency of less than 5 MHz. * The I2C bus interface specification for the SCL rise time tsr is under 1000 ns (300 ns for highspeed mode). In master mode, the I2C bus interface monitors the SCL line and synchronizes one bit at a time during communication. If tsr (the time for SCL to go from low to VIH) exceeds the time determined by the input clock of the I2C bus interface, the high period of SCL is extended. The SCL rise time is determined by the pull-up resistance and load capacitance of the SCL line. To insure proper operation at the set transfer rate, adjust the pull-up resistance and load capacitance so that the SCL rise time does not exceed the values given in the table 18-7. 849 Table 18-7 Permissible SCL Rise Time (tSr) Values Time Indication t cyc IICX Indication 0 7.5tcyc Standard mode High-speed mode 1 17.5tcyc Standard mode High-speed mode I2C Bus Specification o = (Max.) 5 MHz 1000 ns 300 ns 1000 ns 300 ns o= 8 MHz o= o= o= o= o= 10 MHz 16 MHz 20 MHz 25 MHz 28 MHz 750 ns 468 ns 300 ns 300 ns 375 ns 300 ns 300 ns 300 ns 700 ns 300 ns 267 ns 300 ns 624 ns 300 ns 1000 ns 937 ns 300 ns 300 ns 1000 ns 1000 ns 1000 ns 1000 ns 875 ns 300 ns 300 ns 300 ns 300 ns 300 ns * The I2C bus interface specifications for the SCL and SDA rise and fall times are under 1000 ns and 300 ns. The I2C bus interface SCL and SDA output timing is prescribed by t Scyc and tcyc, as shown in table 18-6. However, because of the rise and fall times, the I2C bus interface specifications may not be satisfied at the maximum transfer rate. Table 18-8 shows output timing calculations for different operating frequencies, including the worst-case influence of rise and fall times. tBUFO fails to meet the I2C bus interface specifications at any frequency. The solution is either (a) to provide coding to secure the necessary interval (approximately 1 s) between issuance of a stop condition and issuance of a start condition, or (b) to select devices whose input timing permits this output timing for use as slave devices connected to the I2C bus. tSCLLO in high-speed mode and t STASO in standard mode fail to satisfy the I 2C bus interface specifications for worst-case calculations of tSr/tSf. Possible solutions that should be investigated include (a) adjusting the rise and fall times by means of a pull-up resistor and capacitive load, (b) reducing the transfer rate to meet the specifications, or (c) selecting devices whose input timing permits this output timing for use as slave devices connected to the I 2C bus. 850 Table 18-8 I2C Bus Timing (with Maximum Influence of tSr/tSf) Time Indication (at Maximum Transfer Rate) [ns] I2C Bus SpecifitSr/tSf Influence cation o = (Max.) (Min.) 5 MHz Standard mode High-speed mode tSCLLO 0.5t SCLO (-tSf ) Standard mode High-speed mode tBUFO 0.5t SCLO - 1tcyc ( -tSr ) Standard mode High-speed mode tSTAHO 0.5t SCLO - 1tcyc (-tSf ) Standard mode High-speed mode tSTASO 1tSCLO (-tSr ) Standard mode High-speed mode tSTOSO 0.5t SCLO + 2tcyc (-tSr ) Standard mode High-speed mode 1tSCLLO* 2 - 3tcyc Standard tSDASO (master) (-tSr ) mode High-speed mode tSDASO (slave) 1tSCLL* 2 - 3tcyc* 2 Standard (-tSr ) mode High-speed mode tSDAHO 3tcyc Standard mode High-speed mode -1000 -300 -250 -250 -1000 -300 -250 -250 -1000 -300 -1000 -300 -1000 -300 -1000 -300 0 0 4000 600 4700 1300 4700 1300 4000 600 4700 600 4000 600 250 100 250 100 0 0 4000 950 4750 1000* 1 3800* 1 750* 1 4550 800 9000 2200 4400 1350 3100 400 3100 400 600 600 Item tSCLHO tcyc Indication 0.5t SCLO (-tSr) o= 8 MHz 4000 950 4750 1000* 1 3875* 1 825* 1 4625 875 9000 2200 4250 1200 3325 625 3325 625 375 375 o= o= o= o= o= 10 MHz 16 MHz 20 MHz 25 MHz 28 MHz 4000 950 4750 1000* 1 3900* 1 850* 1 4650 900 9000 2200 4200 1150 3400 700 3400 700 300 300 4000 950 4750 1000* 1 3938* 1 888* 1 4688 938 9000 2200 4125 1075 3513 813 3513 813 188 188 4000 950 4750 1000* 1 3950* 1 900* 1 4700 950 9000 2200 4100 1050 3550 850 3550 850 150 150 4000 950 4750 1000* 1 3960* 1 910* 1 4710 960 9000 2200 4080 1030 3580 880 3580 880 120 120 4000 950 4750 1000* 1 3964* 1 912* 1 4713 964 9000 2200 4071 1021 3593 893 3593 893 107 107 Notes: *1 Does not meet the I2C bus interface specification. Remedial action such as the following is necessary: (a) secure a start/stop condition issuance interval; (b) adjust the rise and fall times by means of a pull-up resistor and capacitive load; (c) reduce the transfer rate; (d) select slave devices whose input timing permits this output timing. The values in the above table will vary depending on the settings of the IICX bit and bits CKS0 to CKS2. Depending on the frequency it may not be possible to achieve the maximum transfer rate; therefore, whether or not the I2C bus interface specifications are met must be determined in accordance with the actual setting conditions. *2 Calculated using the I2C bus specification values (standard mode: 4700 ns min.; high-speed mode: 1300 ns min.). 851 * Note on ICDR Read at End of Master Reception To halt reception at the end of a receive operation in master receive mode, set the TRS bit to 1 and write 0 to BBSY and SCP in ICCR. This changes SDA from low to high when SCL is high, and generates the stop condition. After this, receive data can be read by means of an ICDR read, but if data remains in the buffer the ICDRS receive data will not be transferred to ICDR, and so it will not be possible to read the second byte of data. If it is necessary to read the second byte of data, issue the stop condition in master receive mode (i.e. with the TRS bit cleared to 0). When reading the receive data, first confirm that the BBSY bit in the ICCR register is cleared to 0, the stop condition has been generated, and the bus has been released, then read the ICDR register with TRS cleared to 0. Note that if the receive data (ICDR data) is read in the interval between execution of the instruction for issuance of the stop condition (writing of 0 to BBSY and SCP in ICCR) and the actual generation of the stop condition, the clock may not be output correctly in subsequent master transmission. Clearing of the MST bit after completion of master transmission/reception, or other modifications of IIC control bits to change the transmit/receive operating mode or settings, must be carried out during interval (a) in figure 18-18 (after confirming that the BBSY bit has been cleared to 0 in the ICCR register). Stop condition (a) SDA SCL Internal clock BBSY bit Master receive mode ICDR reading prohibited Bit 0 8 A 9 Start condition Execution of stop condition issuance instruction (0 written to BBSY and SCP) Confirmation of stop condition generation (0 read from BBSY) Start condition issuance Figure 18-21 Points for Attention Concerning Reading of Master Receive Data 852 * Notes on Start Condition Issuance for Retransmission Figure 18-22 shows the timing of start condition issuance for retransmission, and the timing for subsequently writing data to ICDR, together with the corresponding flowchart. [1] Wait for end of 1-byte transfer. IRIC= 1 ? Yes Clear IRIC in ICSR Start condition issuance? Yes Read SCL pin SCL= Low ? Yes Write BBSY = 1, SCP = 0 (ICSR) Read SCL pin SCL= High ? Yes Write transmit data to ICDR [5] No [4] [3] No [2] No Other processing [5] Set transmit data (slave address + R/W). Note: Program so that processing from [3] to [5] is executed continuously. No [1] [2] Determine whether SCL is low. [3] Issue restart condition instruction for retransmission. [4] Determine whether SCL is high. SCL SDA ACK Start condition (retransmission) Bit 7 IRIC [1] IRIC determination [2] Determination of SCL = low [4] Determination of SCL = high [5] ICDR write [3] Start condition instruction issuance Figure 18-22 Flowchart and Timing of Start Condition Instruction Issuance for Retransmission 853 * Notes on I 2C Bus Interface Stop Condition Instruction Issuance If the rise time of the 9th SCL acknowledge exceeds the specification because the bus load capacitance is large, or if there is a slave device of the type that drives SCL low to effect a wait, issue the stop condition instruction after reading SCL and determining it to be low, as shown below. 9th clock VIH High period secured SCL As waveform rise is late, SCL is detected as low SDA Stop condition IRIC [1] Determination of SCL = low [2] Stop condition instruction issuance Figure 18-23 Timing of Stop Condition Issuance * Notes on IRIC Flag Clearance when Using Wait Function If the SCL rise time exceeds the designated duration or if the slave device is of the type that keeps SCL low and applies a wait state when the wait function is used in the master mode of the I2C bus interface, read SCL and clear the IRIC flag after determining that SCL has gone low, as shown below. Clearing the IRIC flag to 0 when WAIT is set to 1 and SCL is being held at high level can cause the SDA value to change before SCL goes low, resulting in a start condition or stop condition being generated erroneously. SCL = high duration maintained SCL VIH SCL = low detected SDA IRIC [1] Judgment that SCL = low [2] IRIC clearance Figure 18-24 IRIC Flag Clearance in WAIT = 1 Status 854 * Notes on ICDR Reads and ICCR Access in Slave Transmit Mode In a transmit operation in the slave mode of the I2C bus interface, do not read the ICDR register or read or write to the ICCR register during the period indicated by the shaded portion in figure 18-25. Normally, when interrupt processing is triggered in synchronization with the rising edge of the 9th clock cycle, the period in question has already elapsed when the transition to interrupt processing takes place, so there is no problem with reading the ICDR register or reading or writing to the ICCR register. To ensure that the interrupt processing is performed properly, one of the following two conditions should be applied. (1) Make sure that reading received data from the ICDR register, or reading or writing to the ICCR register, is completed before the next slave address receive operation starts. (2) Monitor the BC2-BC0 counter in the ICMR register and, when the value of BC2-BC0 is 000 (8th or 9th clock cycle), allow a waiting time of at least 2 transfer clock cycles in order to involve the problem period in question before reading from the ICDR register, or reading or writing to the ICCR register. Waveforms if problem occurs SDA SCL TRS R/W 8 Address received Period when ICDR reads and ICCR reads and writes are prohibited (6 system clock cycles) A 9 Data transmission ICDR write Bit 7 Detection of 9th clock cycle rising edge Figure 18-25 ICDR Read and ICCR Access Timing in Slave Transmit Mode 855 * Notes on TRS Bit Setting in Slave Mode From the detection of the rising edge of the 9th clock cycle or of a stop condition to when the rising edge of the next SCL pin signal is detected (the period indicated as (a) in figure 18-26) in the slave mode of the I 2C bus interface, the value set in the TRS bit in the ICCR register is effective immediately. However, at other times (indicated as (b) in figure 18-26) the value set in the TRS bit is put on hold until the next rising edge of the 9th clock cycle or stop condition is detected, rather than taking effect immediately. This results in the actual internal value of the TRS bit remaining 1 (transmit mode) and no acknowledge bit being sent at the 9th clock cycle address receive completion in the case of an address receive operation following a restart condition input with no stop condition intervening. When receiving an address in the slave mode, clear the TRS bit to 0 during the period indicated as (a) in figure 18-26. To cancel the holding of the SCL bit low by the wait function in the slave mode, clear the TRS bit to 0 and then perform a dummy read of the ICDR register. Restart condition (a) SDA SCL TRS 8 9 1 2 3 4 5 6 7 8 (b) A 9 Data transmission Address reception TRS bit setting hold time ICDR dummy read TRS bit set Detection of 9th clock cycle rising edge Detection of 9th clock cycle rising edge Figure 18-26 TRS Bit Setting Timing in Slave Mode 856 * Notes on ICDR Reads in Transmit Mode and ICDR Writes in Receive Mode When attempting to read ICDR in the transmit mode (TRS = 1) or write to ICDR in the receive mode (TRS = 0) under certain conditions, the SCL pin may not be held low after the completion of the transmit or receive operation and a clock may not be output to the SCL bus line before the ICDR register access operation can take place properly. When accessing ICDR, always change the setting to the transmit mode before performing a read operation, and always change the setting to the receive mode before performing a write operation. * Notes on ACKE Bit and TRS Bit in Slave Mode When using the I 2C bus interface, if an address is received in the slave mode immediately after 1 is received as an acknowledge bit (ACKB = 1) in the transmit mode (TRS = 1), an interrupt may be generated at the rising edge of the 9th clock cycle if the address does not match. When performing slave mode operations using the IIC bus interface module, make sure to do the following. (1) When a 1 is received as an acknowledge bit for the final transmit data after completing a series of transmit operations, clear the ACKE bit in the ICCR register to 0 to initialize the ACKB bit to 0. (2) In the slave mode, change the setting to the receive mode (TRS = 0) before the start condition is input. To ensure that the switch from the slave transmit mode to the slave receive mode is accomplished properly, end the transmission as described in figure 18-19, Flowchart for Slave Transmit Mode (Example), in section 18.3.10, Sample Flowcharts. 857 858 Section 19 A/D Converter 19.1 Overview The H8S/2633 Series incorporates a successive approximation type 10-bit A/D converter that allows up to sixteen analog input channels to be selected. 19.1.1 Features A/D converter features are listed below. * 10-bit resolution * Sixteen input channels * Settable analog conversion voltage range Conversion of analog voltages with the reference voltage pin (Vref) as the analog reference voltage * High-speed conversion Minimum conversion time: 10.64 s per channel (at 25 MHz operation) * Choice of single mode or scan mode Single mode: Single-channel A/D conversion Scan mode: Continuous A/D conversion on 1 to 4 channels * Four data registers Conversion results are held in a 16-bit data register for each channel * Sample and hold function * Three kinds of conversion start Choice of software or timer conversion start trigger (TPU or 8-bit timer), or ADTRG pin * A/D conversion end interrupt generation A/D conversion end interrupt (ADI) request can be generated at the end of A/D conversion * Module stop mode can be set As the initial setting, A/D converter operation is halted. Register access is enabled by exiting module stop mode. 859 19.1.2 Block Diagram Figure 19-1 shows a block diagram of the A/D converter. Module data bus Bus interface A D D R A A D D R B A D D R C A D D R D A D C S R A D C R + Multiplexer - Comparator Sample-andhold circuit Control circuit Internal data bus AVCC Vref AVSS 10-bit D/A AN0 AN1 AN2 AN3 AN4 AN5 AN6 AN7 AN8 AN9 AN10 AN11 AN12 AN13 AN14 AN15 Successive approximations register o/2 o/4 o/8 o/16 ADI interrupt Conversion start trigger from 8-bit timer* or TPU ADTRG ADCR : A/D control register ADCSR : A/D control/status register ADDRA : A/D data register A ADDRB : A/D data register B ADDRC : A/D data register C ADDRD : A/D data register D Note: * This function is not available in the H8S/2695. Figure 19-1 Block Diagram of A/D Converter 860 19.1.3 Pin Configuration Table 19-1 summarizes the input pins used by the A/D converter. The AVCC and AVSS pins are the power supply pins for the analog block in the A/D converter. The Vref pin is the A/D conversion reference voltage pin. The 16 analog input pins are divided into two channel sets and two groups, with analog input pins 0 to 7 (AN0 to AN7) comprising channel set 0, analog input pins 8 to 15 (AN8 to AN15) comprising channel set 1, analog input pins 0 to 3 and 8 to 11 (AN0 to AN3, AN8 to AN11) comprising group 0, and analog input pins 4 to 7 and 12 to 15 (AN4 to AN7, AN12 to AN15) comprising group 1. Table 19-1 A/D Converter Pins Pin Name Analog power supply pin Analog ground pin Reference voltage pin Analog input pin 0 Analog input pin 1 Analog input pin 2 Analog input pin 3 Analog input pin 4 Analog input pin 5 Analog input pin 6 Analog input pin 7 Analog input pin 8 Analog input pin 9 Analog input pin 10 Analog input pin 11 Analog input pin 12 Analog input pin 13 Analog input pin 14 Analog input pin 15 A/D external trigger input pin Symbol AVCC AVSS Vref AN0 AN1 AN2 AN3 AN4 AN5 AN6 AN7 AN8 AN9 AN10 AN11 AN12 AN13 AN14 AN15 ADTRG I/O Input Input Input Input Input Input Input Input Input Input Input Input Input Input Input Input Input Input Input Input External trigger input for starting A/D conversion Channel set 1 (CH3 = 1) group 1 analog inputs Channel set 1 (CH3 = 1) group 0 analog inputs Channel set 0 (CH3 = 0) group 1 analog inputs Function Analog block power supply Analog block ground and reference voltage A/D conversion reference voltage Channel set 0 (CH3 = 0) group 0 analog inputs 861 19.1.4 Register Configuration Table 19-2 summarizes the registers of the A/D converter. Table 19-2 A/D Converter Registers Name A/D data register AH A/D data register AL A/D data register BH A/D data register BL A/D data register CH A/D data register CL A/D data register DH A/D data register DL A/D control/status register A/D control register Module stop control register A Abbreviation ADDRAH ADDRAL ADDRBH ADDRBL ADDRCH ADDRCL ADDRDH ADDRDL ADCSR ADCR MSTPCRA R/W R R R R R R R R R/(W)* R/W R/W 2 Initial Value H'00 H'00 H'00 H'00 H'00 H'00 H'00 H'00 H'00 H'33 H'3F Address* 1 H'FF90 H'FF91 H'FF92 H'FF93 H'FF94 H'FF95 H'FF96 H'FF97 H'FF98 H'FF99 H'FDE8 Notes: *1 Lower 16 bits of the address. *2 Bit 7 can only be written with 0 for flag clearing. 862 19.2 19.2.1 Bit Register Descriptions A/D Data Registers A to D (ADDRA to ADDRD) : 15 0 R 14 0 R 13 0 R 12 0 R 11 0 R 10 0 R 9 0 R 8 0 R 7 0 R 6 0 R 5 0 R 4 -- 0 R 3 -- 0 R 2 -- 0 R 1 -- 0 R 0 -- 0 R AD9 AD8 AD7 AD6 AD5 AD4 AD3 AD2 AD1 AD0 -- Initial value : R/W : There are four 16-bit read-only ADDR registers, ADDRA to ADDRD, used to store the results of A/D conversion. The 10-bit data resulting from A/D conversion is transferred to the ADDR register for the selected channel and stored there. The upper 8 bits of the converted data are transferred to the upper byte (bits 15 to 8) of ADDR, and the lower 2 bits are transferred to the lower byte (bits 7 and 6) and stored. Bits 5 to 0 are always read as 0. The correspondence between the analog input channels and ADDR registers is shown in table 19-3. ADDR can always be read by the CPU. The upper byte can be read directly, but for the lower byte, data transfer is performed via a temporary register (TEMP). For details, see section 19.3, Interface to Bus Master. The ADDR registers are initialized to H'0000 by a reset, and in standby mode or module stop mode. Table 19-3 Analog Input Channels and Corresponding ADDR Registers Analog Input Channel Channel Set 0 (CH3 = 0) Group 0 AN0 AN1 AN2 AN3 Group 1 AN4 AN5 AN6 AN7 Channel Set 1 (CH3 = 1) Group 0 AN8 AN9 AN10 AN11 Group 1 AN12 AN13 AN14 AN15 A/D Data Register ADDRA ADDRB ADDRC ADDRD 863 19.2.2 Bit A/D Control/Status Register (ADCSR) : 7 ADF 0 R/(W)* 6 ADIE 0 R/W 5 ADST 0 R/W 4 SCAN 0 R/W 3 CH3 0 R/W 2 CH2 0 R/W 1 CH1 0 R/W 0 CH0 0 R/W Initial value : R/W : Note: * Only 0 can be written to bit 7, to clear this flag. ADCSR is an 8-bit readable/writable register that controls A/D conversion operations. ADCSR is initialized to H'00 by a reset, and in hardware standby mode or module stop mode. Bit 7--A/D End Flag (ADF): Status flag that indicates the end of A/D conversion. Bit 7 ADF 0 Description [Clearing conditions] * * 1 When 0 is written to the ADF flag after reading ADF = 1 When the DTC * is activated by an ADI interrupt and ADDR is read (Initial value) [Setting conditions] * * Single mode: When A/D conversion ends Scan mode: When A/D conversion ends on all specified channels Note: * The DTC function is not available in the H8S/2695. Bit 6--A/D Interrupt Enable (ADIE): Selects enabling or disabling of interrupt (ADI) requests at the end of A/D conversion. Bit 6 ADIE 0 1 Description A/D conversion end interrupt (ADI) request disabled A/D conversion end interrupt (ADI) request enabled (Initial value) 864 Bit 5--A/D Start (ADST): Selects starting or stopping on A/D conversion. Holds a value of 1 during A/D conversion. The ADST bit can be set to 1 by software, a timer conversion start trigger, or the A/D external trigger input pin (ADTRG). Bit 5 ADST 0 1 Description * * * A/D conversion stopped (Initial value) Single mode: A/D conversion is started. Cleared to 0 automatically when conversion on the specified channel ends Scan mode: A/D conversion is started. Conversion continues sequentially on the selected channels until ADST is cleared to 0 by software, a reset, or a transition to standby mode or module stop mode Bit 4--Scan Mode (SCAN): Selects single mode or scan mode as the A/D conversion operating mode. See section 19.4, Operation, for single mode and scan mode operation. Only set the SCAN bit while conversion is stopped (ADST = 0). Bit 4 SCAN 0 1 Description Single mode Scan mode (Initial value) Bit 3--Channel Select 3 (CH3): Switches the analog input pins assigned to group 0 or group 1. Setting CH3 to CH1 enables AN8 to AN15 to be used instead of AN0 to AN7. Bit 3 CH3 0 1 Description AN8 to AN11 are group 0 analog input pins, AN12 to AN15 are group 1 analog input pins AN0 to AN3 are group 0 analog input pins, AN4 to AN7 are group 1 analog input pins (Initial value) 865 Bits 2 to 0--Channel Select 2 to 0 (CH2 to CH0): Together with the SCAN bit, these bits select the analog input channels. Only set the input channel while conversion is stopped (ADST = 0). Channel Selection CH3 0 CH2 0 CH1 0 CH0 0 1 1 0 1 1 0 0 1 1 0 1 1 0 0 0 1 1 0 1 1 0 0 1 1 0 1 Single Mode (SCAN = 0) AN0 AN1 AN2 AN3 AN4 AN5 AN6 AN7 AN8 AN9 AN10 AN11 AN12 AN13 AN14 AN15 (Initial value) Description Scan Mode (SCAN = 1) AN0 AN0, AN1 AN0 to AN2 AN0 to AN3 AN4 AN4, AN5 AN4 to AN6 AN4 to AN7 AN8 AN8, AN9 AN8 to AN10 AN8 to AN11 AN12 AN12, AN13 AN12 to AN14 AN12 to AN15 866 19.2.3 Bit A/D Control Register (ADCR) : 7 TRGS1 0 R/W 6 TRGS0 0 R/W 5 -- 1 -- 4 -- 1 -- 3 CKS1 0 R/W 2 CKS0 0 R/W 1 -- 1 -- 0 -- 1 -- Initial value : R/W : ADCR is an 8-bit readable/writable register that enables or disables external triggering of A/D conversion operations and sets the A/D conversion time. ADCR is initialized to H'33 by a reset, and in standby mode or module stop mode. Bits 7 and 6--Timer Trigger Select 1 and 0 (TRGS1, TRGS0): Select enabling or disabling of the start of A/D conversion by a trigger signal. Only set bits TRGS1 and TRGS0 while conversion is stopped (ADST = 0). Bit 7 TRGS1 0 Bit 6 TRGS0 0 1 1 0 1 Description A/D conversion start by software is enabled (Initial value) A/D conversion start by TPU conversion start trigger is enabled A/D conversion start by 8-bit timer * conversion start trigger is enabled A/D conversion start by external trigger pin (ADTRG) is enabled Note: * This function is not available in the H8S/2695. Bits 5, 4, 1, and 0--Reserved: They are always read as 1 and cannot be modified. Bits 3 and 2--Clock Select 1 and 0 (CKS1, CKS0): These bits select the A/D conversion time. The conversion time should be changed only when ADST = 0. Set bits CKS1 and CKS0 to give a conversion time of at least 10 s when AVCC 4.5 V, and at least 16 s when AVCC < 4.5 V. Bit 3 CKS1 0 Bit 2 CKS0 0 1 1 0 1 Description Conversion time = 530 states (max.) Conversion time = 266 states (max.) Conversion time = 134 states (max.) Conversion time = 68 states (max.) (Initial value) 867 19.2.4 Bit Module Stop Control Register A (MSTPCRA) : 7 0 R/W 6 0 R/W 5 1 R/W 4 1 R/W 3 1 R/W 2 1 R/W 1 1 R/W 0 1 R/W MSTPA7 MSTPA6 MSTPA5 MSTPA4 MSTPA3 MSTPA2 MSTPA1 MSTPA0 Initial value : R/W : MSTPCR is a 8-bit readable/writable register that performs module stop mode control. When the MSTPA1 bit in MSTPCR is set to 1, A/D converter operation stops at the end of the bus cycle and a transition is made to module stop mode. Registers cannot be read or written to in module stop mode. For details, see section 24.5, Module Stop Mode. MSTPCRA is initialized to H'3F by a reset and in hardware standby mode. It is not initialized by a manual reset and in software standby mode. Bit 1--Module Stop (MSTPA1): Specifies the A/D converter module stop mode. Bit 1 MSTPA1 0 1 Description A/D converter module stop mode cleared A/D converter module stop mode set (Initial value) 868 19.3 Interface to Bus Master ADDRA to ADDRD are 16-bit registers, and the data bus to the bus master is 8 bits wide. Therefore, in accesses by the bus master, the upper byte is accessed directly, but the lower byte is accessed via a temporary register (TEMP). A data read from ADDR is performed as follows. When the upper byte is read, the upper byte value is transferred to the CPU and the lower byte value is transferred to TEMP. Next, when the lower byte is read, the TEMP contents are transferred to the CPU. When reading ADDR. always read the upper byte before the lower byte. It is possible to read only the upper byte, but if only the lower byte is read, incorrect data may be obtained. Figure 19-2 shows the data flow for ADDR access. Upper byte read Bus master (H'AA) Bus interface Module data bus TEMP (H'40) ADDRnH (H'AA) ADDRnL (H'40) (n = A to D) Lower byte read Bus master (H'40) Module data bus Bus interface TEMP (H'40) ADDRnH (H'AA) ADDRnL (H'40) (n = A to D) Figure 19-2 ADDR Access Operation (Reading H'AA40) 869 19.4 Operation The A/D converter operates by successive approximation with 10-bit resolution. It has two operating modes: single mode and scan mode. 19.4.1 Single Mode (SCAN = 0) Single mode is selected when A/D conversion is to be performed on a single channel only. A/D conversion is started when the ADST bit is set to 1, according to the software or external trigger input. The ADST bit remains set to 1 during A/D conversion, and is automatically cleared to 0 when conversion ends. On completion of conversion, the ADF flag is set to 1. If the ADIE bit is set to 1 at this time, an ADI interrupt request is generated. The ADF flag is cleared by writing 0 after reading ADCSR. When the operating mode or analog input channel must be changed during analog conversion, to prevent incorrect operation, first clear the ADST bit to 0 in ADCSR to halt A/D conversion. After making the necessary changes, set the ADST bit to 1 to start A/D conversion again. The ADST bit can be set at the same time as the operating mode or input channel is changed. Typical operations when channel 1 (AN1) is selected in single mode are described next. Figure 19-3 shows a timing diagram for this example. [1] Single mode is selected (SCAN = 0), input channel AN1 is selected (CH3 = 0, CH2 = 0, CH1 = 0, CH0 = 1), the A/D interrupt is enabled (ADIE = 1), and A/D conversion is started (ADST = 1). [2] When A/D conversion is completed, the result is transferred to ADDRB. At the same time the ADF flag is set to 1, the ADST bit is cleared to 0, and the A/D converter becomes idle. [3] Since ADF = 1 and ADIE = 1, an ADI interrupt is requested. [4] The A/D interrupt handling routine starts. [5] The routine reads ADCSR, then writes 0 to the ADF flag. [6] The routine reads and processes the connection result (ADDRB). [7] Execution of the A/D interrupt handling routine ends. After that, if the ADST bit is set to 1, A/D conversion starts again and steps [2] to [7] are repeated. 870 Set* ADIE ADST ADF State of channel 0 (AN0) State of channel 1 (AN1) State of channel 2 (AN2) State of channel 3 (AN3) Idle Idle Idle Idle A/D conversion 1 A/D conversion starts Set* Clear* Set* Clear* Idle A/D conversion 2 Idle ADDRA ADDRB ADDRC ADDRD Read conversion result A/D conversion result 1 Read conversion result A/D conversion result 2 Note: * Vertical arrows ( ) indicate instructions executed by software. Figure 19-3 Example of A/D Converter Operation (Single Mode, Channel 1 Selected) 871 19.4.2 Scan Mode (SCAN = 1) Scan mode is useful for monitoring analog inputs in a group of one or more channels. When the ADST bit is set to 1 by a software, timer or external trigger input, A/D conversion starts on the first channel in the group (AN0). When two or more channels are selected, after conversion of the first channel ends, conversion of the second channel (AN1) starts immediately. A/D conversion continues cyclically on the selected channels until the ADST bit is cleared to 0. The conversion results are transferred for storage into the ADDR registers corresponding to the channels. When the operating mode or analog input channel must be changed during analog conversion, to prevent incorrect operation, first clear the ADST bit to 0 in ADCSR to halt A/D conversion. After making the necessary changes, set the ADST bit to 1 to start A/D conversion again from the first channel (AN0). The ADST bit can be set at the same time as the operating mode or input channel is changed. Typical operations when three channels (AN0 to AN2) are selected in scan mode are described next. Figure 19-4 shows a timing diagram for this example. [1] Scan mode is selected (SCAN = 1), channel set 0 is selected (CH3 = 0), scan group 0 is selected (CH2 = 0), analog input channels AN0 to AN2 are selected (CH1 = 1, CH0 = 0), and A/D conversion is started (ADST = 1). [2] When A/D conversion of the first channel (AN0) is completed, the result is transferred to ADDRA. Next, conversion of the second channel (AN1) starts automatically. [3] Conversion proceeds in the same way through the third channel (AN2). [4] When conversion of all the selected channels (AN0 to AN2) is completed, the ADF flag is set to 1 and conversion of the first channel (AN0) starts again. If the ADIE bit is set to 1 at this time, an ADI interrupt is requested after A/D conversion ends. [5] Steps [2] to [4] are repeated as long as the ADST bit remains set to 1. When the ADST bit is cleared to 0, A/D conversion stops. After that, if the ADST bit is set to 1, A/D conversion starts again from the first channel (AN0). 872 Continuous A/D conversion execution Set*1 ADST ADF A/D conversion time State of channel 0 (AN0) State of channel 1 (AN1) State of channel 2 (AN2) State of channel 3 (AN3) Transfer ADDRA ADDRB ADDRC ADDRD Notes: *1 Vertical arrows ( ) indicate instructions executed by software. *2 Data currently being converted is ignored. A/D conversion result 1 A/D conversion result 4 A/D conversion result 2 A/D conversion result 3 Idle Idle Idle A/D conversion 1 Clear*1 Clear*1 Idle A/D conversion 2 A/D conversion 4 Idle A/D conversion 5 *2 Idle A/D conversion 3 Idle Idle Idle Figure 19-4 Example of A/D Converter Operation (Scan Mode, 3 Channels AN0 to AN2 Selected) 873 19.4.3 Input Sampling and A/D Conversion Time The A/D converter has a built-in sample-and-hold circuit. The A/D converter samples the analog input at a time tD after the ADST bit is set to 1, then starts conversion. Figure 19-5 shows the A/D conversion timing. Table 19-4 indicates the A/D conversion time. As indicated in figure 19-5, the A/D conversion time includes tD and the input sampling time. The length of tD varies depending on the timing of the write access to ADCSR. The total conversion time therefore varies within the ranges indicated in table 19-4. In scan mode, the values given in table 19-4 apply to the first conversion time. The values given in table 19-5 apply to the second and subsequent conversions. In both cases, set bits CKS1 and CKS0 in ADCR to give a conversion time of at least 10 s when AVCC 4.5 V, and at least 16 s when AV CC < 4.5 V. (1) o Address (2) Write signal Input sampling timing ADF tD t SPL t CONV Legend (1) : (2) : : tD tSPL : tCONV : ADCSR write cycle ADCSR address A/D conversion start delay Input sampling time A/D conversion time Figure 19-5 A/D Conversion Timing 874 Table 19-4 A/D Conversion Time (Single Mode) CKS1 = 0 CKS0 = 0 Item CKS0 = 1 CKS1 = 1 CKS0 = 0 CKS0 = 1 Symbol Min Typ Max Min Typ Max Min Typ Max Min Typ Max 18 -- -- 33 10 -- -- 63 17 -- 6 -- -- 31 9 -- 4 -- -- 15 -- 5 -- 68 A/D conversion start delay t D Input sampling time A/D conversion time t SPL t CONV 127 -- 515 -- 530 259 -- 266 131 -- 134 67 Note: Values in the table are the number of states. Table 19-5 A/D Conversion Time (Scan Mode) CKS1 0 CKS0 0 1 1 0 1 Conversion Time (State) 512 (Fixed) 256 (Fixed) 128 (Fixed) 64 (Fixed) 19.4.4 External Trigger Input Timing A/D conversion can be externally triggered. When the TRGS1 and TRGS0 bits are set to 11 in ADCR, external trigger input is enabled at the ADTRG pin. A falling edge at the ADTRG pin sets the ADST bit to 1 in ADCSR, starting A/D conversion. Other operations, in both single and scan modes, are the same as if the ADST bit has been set to 1 by software. Figure 19-6 shows the timing. o ADTRG Internal trigger signal ADST A/D conversion Figure 19-6 External Trigger Input Timing 875 19.5 Interrupts The A/D converter generates an A/D conversion end interrupt (ADI) at the end of A/D conversion. ADI interrupt requests can be enabled or disabled by means of the ADIE bit in ADCSR. The DTC* and DMAC* can be activated by an ADI interrupt. Having the converted data read by the DTC* or DMAC* in response to an ADI interrupt enables continuous conversion to be achieved without imposing a load on software. The A/D converter interrupt source is shown in table 19-6. Note: * This function is not available in the H8S/2695. Table 19-6 A/D Converter Interrupt Source Interrupt Source ADI Description Interrupt due to end of conversion DTC*, DMAC* Activation Possible Note: * This function is not available in the H8S/2695. 19.6 Usage Notes The following points should be noted when using the A/D converter. Setting Range of Analog Power Supply and Other Pins: (1) Analog input voltage range The voltage applied to analog input pin ANn during A/D conversion should be in the range AVSS ANn Vref. (2) Relation between AVCC, AVSS and VCC, VSS As the relationship between AVCC, AVSS and VCC, VSS, set AVSS = VSS. If the A/D converter is not used, the AVCC and AVSS pins must on no account be left open. (3) Vref input range The analog reference voltage input at the Vref pin set in the range Vref AVCC. If conditions (1), (2), and (3) above are not met, the reliability of the device may be adversely affected. Notes on Board Design: In board design, digital circuitry and analog circuitry should be as mutually isolated as possible, and layout in which digital circuit signal lines and analog circuit signal lines cross or are in close proximity should be avoided as far as possible. Failure to do so may result in incorrect operation of the analog circuitry due to inductance, adversely affecting A/D conversion values. 876 Also, digital circuitry must be isolated from the analog input signals (AN0 to AN15), analog reference power supply (Vref), and analog power supply (AVCC) by the analog ground (AVSS). Also, the analog ground (AVSS) should be connected at one point to a stable digital ground (VSS) on the board. Notes on Noise Countermeasures: A protection circuit connected to prevent damage due to an abnormal voltage such as an excessive surge at the analog input pins (AN0 to AN15) and analog reference power supply (Vref) should be connected between AVCC and AVSS as shown in figure 19-7. Also, the bypass capacitors connected to AVCC and Vref and the filter capacitor connected to AN0 to AN15 must be connected to AVSS. If a filter capacitor is connected as shown in figure 19-7, the input currents at the analog input pins (AN0 to AN15) are averaged, and so an error may arise. Also, when A/D conversion is performed frequently, as in scan mode, if the current charged and discharged by the capacitance of the sample-and-hold circuit in the A/D converter exceeds the current input via the input impedance (Rin ), an error will arise in the analog input pin voltage. Careful consideration is therefore required when deciding the circuit constants. AVCC Vref Rin* 2 *1 *1 0.1 F 100 AN0 to AN15 AVSS Notes: Values are reference values. *1 10 F 0.01 F *2 Rin: Input impedance Figure 19-7 Example of Analog Input Protection Circuit 877 Table 19-7 Analog Pin Specifications Item Analog input capacitance Permissible signal source impedance Min -- -- Max 20 5 Unit pF k 10 k AN0 to AN15 To A/D converter 20 pF Note: Values are reference values. Figure 19-8 Analog Input Pin Equivalent Circuit A/D Conversion Precision Definitions: H8S/2633 Series A/D conversion precision definitions are given below. * Resolution The number of A/D converter digital output codes * Offset error The deviation of the analog input voltage value from the ideal A/D conversion characteristic when the digital output changes from the minimum voltage value B'0000000000 (H'00) to B'0000000001 (H'01) (see figure 19-10). * Full-scale error The deviation of the analog input voltage value from the ideal A/D conversion characteristic when the digital output changes from B'1111111110 (H'3E) to B'1111111111 (H'3F) (see figure 19-10). * Quantization error The deviation inherent in the A/D converter, given by 1/2 LSB (see figure 19-9). * Nonlinearity error The error with respect to the ideal A/D conversion characteristic between the zero voltage and the full-scale voltage. Does not include the offset error, full-scale error, or quantization error. * Absolute precision The deviation between the digital value and the analog input value. Includes the offset error, full-scale error, quantization error, and nonlinearity error. 878 Digital output 111 110 101 100 011 010 001 000 Ideal A/D conversion characteristic Quantization error 1 2 1024 1024 1022 1023 1024 1024 FS Analog input voltage Figure 19-9 A/D Conversion Precision Definitions (1) 879 Digital output Full-scale error Ideal A/D conversion characteristic Nonlinearity error Actual A/D conversion characteristic FS Offset error Analog input voltage Figure 19-10 A/D Conversion Precision Definitions (2) Permissible Signal Source Impedance: H8S/2633 Series analog input is designed so that conversion precision is guaranteed for an input signal for which the signal source impedance is 5 k or less. This specification is provided to enable the A/D converter's sample-and-hold circuit input capacitance to be charged within the sampling time; if the sensor output impedance exceeds 10 k, charging may be insufficient and it may not be possible to guarantee the A/D conversion precision. However, if a large capacitance is provided externally, the input load will essentially comprise only the internal input resistance of 10 k, and the signal source impedance is ignored. However, since a low-pass filter effect is obtained in this case, it may not be possible to follow an analog signal with a large differential coefficient (e.g., 5 mV/s or greater). When converting a high-speed analog signal, a low-impedance buffer should be inserted. 880 Influences on Absolute Precision: Adding capacitance results in coupling with GND, and therefore noise in GND may adversely affect absolute precision. Be sure to make the connection to an electrically stable GND such as AVSS. Care is also required to insure that filter circuits do not communicate with digital signals on the mounting board, so acting as antennas. H8S/2633 Series Sensor output impedance Up to 5 k Sensor input Low-pass filter C Up to 0.1 F Cin = 15 pF A/D converter equivalent circuit 10 k 20 pF Figure 19-11 Example of Analog Input Circuit 881 882 Section 20 D/A Converter (This function is not available in the H8S/2695) 20.1 Overview The H8S/2633 Series has an on-chip D/A converter module with four channels. 20.1.1 Features Features of the D/A converter module are listed below. * * * * * * Eight-bit resolution Four-channel output Maximum conversion time: 10 s (with 20-pF load capacitance) Output voltage: 0 V to Vref D/A output retention in software standby mode Possible to set module stop mode Operation of D/A converter is disenabled by initial values. It is possible to access the register by canceling module stop mode. Block Diagram 20.1.2 Figure 20-1 shows a block diagram of the D/A converter. 883 Module data bus Bus interface Internal data bus Vref DADR0 (DADR2) AVCC DA1 (DA3) DA0 (DA2) AVSS 8-bit D/A DADR1 (DADR3) Control circuit Legend: DACR: D/A control register DADR0 to DADR3: D/A data register 0 to 3 Figure 20-1 Block Diagram of D/A Converter 884 DACR 20.1.3 Input and Output Pins Table 20-1 lists the input and output pins used by the D/A converter module. Table 20-1 Input and Output Pins of D/A Converter Module Name Analog supply voltage Analog ground Analog output 0 Analog output 1 Analog output 2 Analog output 3 Reference voltage Abbreviation AVCC AVSS DA0 DA1 DA2 DA3 Vref I/O Input Input Output Output Output Output Input Function Power supply for analog circuits Ground and reference voltage for analog circuits Analog output channel 0 Analog output channel 1 Analog output channel 2 Analog output channel 3 Reference voltage of analog section 20.1.4 Register Configuration Table 20-2 lists the registers of the D/A converter module. Table 20-2 D/A Converter Registers Channel 0, 1 Name D/A data register 0 D/A data register 1 D/A control register 01 2, 3 D/A data register 2 D/A data register 3 D/A control register 23 All Module stop control register A Module stop control register C Note: * Lower 16 bits of the address. Abbreviation DADR0 DADR1 DACR01 DADR2 DADR3 DACR23 MSTPCRA MSTPCRC R/W R/W R/W R/W R/W R/W R/W R/W R/W Initial Value H'00 H'00 H'1F H'00 H'00 H'1F H'3F H'FF Address* H'FFA4 H'FFA5 H'FFA6 H'FDAC H'FDAD H'FDAE H'FDF8 H'FDEA 885 20.2 20.2.1 Bit Register Descriptions D/A Data Registers 0 to 3 (DADR0 to DADR3) : 7 0 R/W 6 0 R/W 5 0 R/W 4 0 R/W 3 0 R/W 2 0 R/W 1 0 R/W 0 0 R/W Initial value : R/W : D/A data registers 0 to 3 (DADR0 to DADR3) are 8-bit readable/writable registers that store data to be converted. When analog output is enabled, the value in the D/A data register is converted and output continuously at the analog output pin. The D/A data registers are initialized to H'00 by a reset and in hardware standby mode. 20.2.2 Bit D/A Control Register 01 and 23 (DACR01 and DACR23) : 7 DAOE1 0 R/W 6 DAOE0 0 R/W 5 DAE 0 R/W 4 -- 1 -- 3 -- 1 -- 2 -- 1 -- 1 -- 1 -- 0 -- 1 -- Initial value : R/W : DACR01 and DACR23 are an 8-bit readable/writable register that controls the operation of the D/A converter module. DACR01 and DACR23 are initialized to H'1F by a reset and in hardware standby mode. Bit 7--D/A Output Enable 1 (DAOE1): Controls D/A conversion and analog output. Bit 7 DAOE1 0 1 Description Analog output DA1 (DA3) is disabled (Initial value) D/A conversion is enabled on channel 1. Analog output DA1 (DA3) is enabled 886 Bit 6--D/A Output Enable 0 (DAOE0): Controls D/A conversion and analog output. Bit 6 DAOE0 0 1 Description Analog output DA0 (DA2) is disabled (Initial value) D/A conversion is enabled on channel 0. Analog output DA0 (DA2) is enabled Bit 5--D/A Enable (DAE): Controls D/A conversion, in combination with bits DAOE0 and DAOE1. D/A conversion is controlled independently on channels 0 and 1 when DAE = 0. Channels 0 and 1 are controlled together when DAE = 1. Output of the converted results is always controlled independently by DAOE0 and DAOE1. Bit 7 DAOE1 0 Bit 6 DAOE0 0 1 Bit 5 DAE * 0 D/A conversion Disabled on channels 0 and 1 (channels 2 and 3) Enabled on channel 0 (channel 2) Disabled on channel 1 (channel 3) 1 1 0 0 Enabled on channels 0 and 1 (channels 2 and 3) Disabled on channel 0 (channel 2) Enabled on channel 1 (channel 3) 1 1 * Enabled on channels 0 and 1 (channels 2 and 3) Enabled on channels 0 and 1 (channels 2 and 3) *: Don't care If the H8S/2633 Series chip enters software standby mode while D/A conversion is enabled, the D/A output is retained and the analog power supply current is the same as during D/A conversion. If it is necessary to reduce the analog power supply current in software standby mode, disable D/A output by clearing both the DAOE0 and DAOE1 bits to 0. Bits 4 to 0--Reserved: These bits cannot be modified and are always read as 1. 887 20.2.3 Module Stop Control Register A and C (MSTPCRA and MSTPCRC) MSTPCRA Bit : 7 0 R/W 6 0 R/W 5 1 R/W 4 1 R/W 3 1 R/W 2 1 R/W 1 1 R/W 0 1 R/W MSTPA7 MSTPA6 MSTPA5 MSTPA4 MSTPA3 MSTPA2 MSTPA1 MSTPA0 Initial value : R/W : MSTPCRC Bit : 7 1 R/W 6 1 R/W 5 1 R/W 4 1 R/W 3 1 R/W 2 1 R/W 1 1 R/W 0 1 R/W MSTPC7 MSTPC6 MSTPC5 MSTPC4 MSTPC3 MSTPC2 MSTPC1 MSTPC0 Initial value : R/W : MSTPCRA and MSTPCRC are an 8-bit readable/writable registers that performs module stop mode control. When the MSTPA2 and MSTPC5 are set to 1, the D/A converter halts and enters module stop mode at the end of the bus cycle. Register read/write is disenabled in module stop mode. See section 24.5, Module Stop Mode, for details. MSTPCRA is initialized to H'3F by a power-on reset and in hardware standby mode. MSTPCRC is initialized to H'FF by a power-on reset and in hardware standby mode. It is not initialized by a manual reset and in software standby mode. 888 Module Stop Control Register A (MSTPCRA) Bit 2--Module Stop (MSTPA2): Specifies D/A converter (channels 0 and 1) module stop mode. Bit 2 MSTPA2 0 1 Description D/A converter (channels 0 and 1) module stop mode is cleared D/A converter (channels 0 and 1) module stop mode is set (Initial value) Module Stop Control Register C (MSTPCRC) Bit 5--Module Stop (MSTPC5): Specifies D/A converter (channels 2 and 3) module stop mode. Bit 5 MSTPC5 0 1 Description D/A converter (channels 2 and 3) module stop mode is cleared D/A converter (channels 2 and 3) module stop mode is set (Initial value) 889 20.3 Operation The D/A converter module has two built-in D/A converter circuits that can operate independently. D/A conversion is performed continuously whenever enabled by the D/A control register (DACR). When a new value is written in DADR0 or DADR1, conversion of the new value begins immediately. The converted result is output by setting the DAOE0 or DAOE1 bit to 1. An example of conversion on channel 0 is given next. Figure 20-2 shows the timing. * Software writes the data to be converted in DADR0. * D/A conversion begins when the DAOE0 bit in DACR is set to 1. After the elapse of the conversion time, analog output appears at the DA0 pin. The output value is Vref x (DADR0 value)/256. This output continues until a new value is written in DADR0 or the DAOE0 bit is cleared to 0. * If a new value is written in DADR0, conversion begins immediately. Output of the converted result begins after the conversion time. * When the DAOE0 bit is cleared to 0, DA0 becomes an input pin. DADR0 write cycle DACR write cycle DADR0 write cycle DACR write cycle O Address DADR0 Conversion data (1) Conversion data (2) DAOE0 DA0 High-impedance state t DCONV Conversion result (1) Conversion result (2) t DCONV t DCONV: D/A conversion time Figure 20-2 D/A Conversion (Example) 890 Section 21 RAM 21.1 Overview The H8S/2633 and H8S/2633R have 16 kbytes of on-chip high-speed static RAM, the H8S/2632 has 12 kbytes, and the H8S/2631 and H8S/2695 have 8 kbytes. The RAM is connected to the CPU by a 16-bit data bus, enabling one-state access by the CPU to both byte data and word data. This makes it possible to perform fast word data transfer. The on-chip RAM can be enabled or disabled by means of the RAM enable bit (RAME) in the system control register (SYSCR). 21.1.1 Block Diagram Figure 21-1 shows a block diagram of the on-chip RAM. Internal data bus (upper 8 bits) Internal data bus (lower 8 bits) H'FFB000 H'FFB002 H'FFB004 H'FFB001 H'FFB003 H'FFB005 H'FFEFBE H'FFFFC0 H'FFEFBF H'FFFFC1 H'FFFFFE H'FFFFFF Figure 21-1 Block Diagram of RAM (H8S/2633 Series and H8S/2633R) 891 21.1.2 Register Configuration The on-chip RAM is controlled by SYSCR. Table 21-1 shows the address and initial value of SYSCR. Table 21-1 RAM Register Name System control register Abbreviation SYSCR R/W R/W Initial Value H'01 Address* H'FDE5 Note: * Lower 16 bits of the address. 21.2 21.2.1 Bit Register Descriptions System Control Register (SYSCR) : 7 MACS 0 R/W 6 -- 0 -- 5 INTM1 0 R/W 4 INTM0 0 R/W 3 0 R/W 2 0 R/W 1 -- 0 -- 0 RAME 1 R/W NMIEG MRESE Initial value : R/W : The on-chip RAM is enabled or disabled by the RAME bit in SYSCR. For details of other bits in SYSCR, see section 3.2.2, System Control Register (SYSCR). Bit 0--RAM Enable (RAME): Enables or disables the on-chip RAM. The RAME bit is initialized when the reset state is released. It is not initialized in software standby mode. Note: When the DTC* is used, the RAME bit must not be cleared to 0. * The DTC function is not available in the H8S/2695. Bit 0 RAME 0 1 Description On-chip RAM is disabled On-chip RAM is enabled (Initial value) 892 21.3 Operation When the RAME bit is set to 1, accesses to addresses H'FFB000 to H'FFEFBF and H'FFFFC0 to H'FFFFFF in the H8S/2633 and H8S/2633R, to addresses H'FFC000 to H'FFEFBF and H'FFFFC0 to H'FFFFFF in the H8S/2632, and to addresses H'FFD000 to H'FFEFBF and H'FFFFC0 to H'FFFFFF in the H8S/2631 and H8S/2695, are directed to the on-chip RAM. When the RAME bit is cleared to 0, the off-chip address space is accessed. Since the on-chip RAM is connected to the CPU by an internal 16-bit data bus, it can be written to and read in byte or word units. Each type of access can be performed in one state. Even addresses use the upper 8 bits, and odd addresses use the lower 8 bits. Word data must start at an even address. 21.4 Usage Notes When Using the DTC*: DTC* register information can be located in addresses H'FFEBC0 to H'FFEFBF. When the DTC* is used, the RAME bit must not be cleared to 0. Note: * The DTC function is not available in the H8S/2695. Reserved Areas: Addresses H'FFB000 to H'FFBFFF in the H8S/2632, and H'FFB000 to H'FFCFFF in the H8S/2631 and H8S/2695 are reserved areas that cannot be read or written to. When the RAME bit is cleared to 0, the off-chip address space is accessed. 893 894 Section 22 ROM 22.1 Overview The H8/2633 Series has 256 kbytes of on-chip flash memory, or 256, 192, or 128 kbytes of onchip mask ROM, the H8S/2633 and H8S/2633R have 256 kbytes of flash memory, and the H8S/2695 has 192 kbytes of mask ROM. The ROM is connected to the bus master via a 16-bit data bus, enabling both byte and word data to be accessed in one state. Instruction fetching is thus speeded up, and processing speed increased. The on-chip ROM is enabled and disabled by setting the mode pins (MD2, MD1, and MD0). The flash memory version can be erased and programmed on-board, as well as with a specialpurpose PROM programmer. 22.1.1 Block Diagram Figure 22-1 shows a block diagram of 256-kbyte ROM. Internal data bus (upper 8 bits) Internal data bus (lower 8 bits) H'000000 H'000002 H'000001 H'000003 H'03FFFE H'03FFFF Figure 22-1 Block Diagram of ROM (256 kbytes) 22.1.2 Register Configuration The H8/2633 Series operating mode is controlled by the mode pins and the MDCR register. The register configuration is shown in table 22-1. 895 Table 22-1 Register Configuration Register Name Mode control register Abbreviation MDCR R/W R/W Initial Value Undefined Address* H'FDE7 Note: * Lower 16 bits of the address. 22.2 22.2.1 Register Descriptions Mode Control Register (MDCR) Bit: 7 -- Initial value: R/W: 1 R/W 6 -- 0 -- 5 -- 0 -- 4 -- 0 -- 3 -- 0 -- 2 MDS2 --* R 1 MDS1 --* R 0 MDS0 --* R Note: * Determined by pins MD2 to MD0. MDCR is an 8-bit read-only register used to monitor the current H8/2633 Series operating mode. Bit 7--Reserved: Only 1 should be written to this bit. Bits 6 to 3--Reserved: Read-only bits, always read as 0. Bits 2 to 0--Mode Select 2 to 0 (MDS2 to MDS0): These bits indicate the input levels at pins MD2 to MD0 (the current operating mode). Bits MDS2 to MDS0 correspond to pins MD2 to MD0. MDS2 to MDS0 are read-only bits, and cannot be modified. The mode pin (MD2 to MD0) input levels are latched into these bits when MDCR is read. These latches are canceled by a power-on reset, but are retained in a manual reset. 22.3 Operation The on-chip ROM is connected to the CPU by a 16-bit data bus, and both byte and word data can be accessed in one state. Even addresses are connected to the upper 8 bits, and odd addresses to the lower 8 bits. Word data must start at an even address. The on-chip ROM is enabled and disabled by setting the mode pins (MD2, MD1, and MD0). These settings are shown in table 22-2. 896 Table 22-2 Operating Modes and ROM (F-ZTAT Version) Mode Pins Operating Mode Mode 0 Mode 1 Mode 2 Mode 3 Mode 4 Mode 5 Mode 6 Mode 7 Mode 8 Mode 9 Mode 10 Mode 11 Mode 12 Mode 13 Mode 14 User program mode (advanced expanded mode with on-chip ROM enabled)* 1 User program mode (advanced singlechip mode)* 2 1 Boot mode (advanced expanded mode with on-chip ROM enabled)* 1 Boot mode (advanced single-chip mode)*2 -- 1 0 1 Advanced expanded mode with on-chip ROM disabled Advanced expanded mode with on-chip ROM disabled Advanced expanded mode with on-chip ROM enabled Advanced single-chip mode -- 1 0 0 1 1 0 1 -- FWE 0 MD2 0 MD1 0 MD0 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 Enabled (256 kbytes) Enabled (256 kbytes) Enabled (256 kbytes) Enabled (256 kbytes) -- Enabled (256 kbytes) Enabled (256 kbytes) -- Disabled On-Chip ROM -- Mode 15 1 Notes: *1 Apart from the fact that flash memory can be erased and programmed, operation is the same as in advanced expanded mode with on-chip ROM enabled. *2 Apart from the fact that flash memory can be erased and programmed, operation is the same as in advanced single-chip mode. 897 Table 22-3 Operating Modes and ROM (Mask ROM Version) Mode Pins Operating Mode Mode 0 Mode 1 Mode 2 Mode 3 Mode 4 Mode 5 Mode 6 Mode 7 Advanced expanded mode with on-chip ROM disabled Advanced expanded mode with on-chip ROM disabled Advanced expanded mode with on-chip ROM enabled Advanced single-chip mode 1 1 0 1 -- MD2 0 MD1 0 MD0 0 1 0 1 0 1 0 1 Enabled (256 kbytes)* Enabled (256 kbytes)* Disabled On-Chip ROM -- Note: * In the case of the H8S/2633. 192 kbytes are enabled in the H8S/2632 and H8S/2695, and 128 kbytes in the H8S/2631. 898 22.4 22.4.1 Flash Memory Overview Features The H8S/2633 Series has 256 kbytes of on-chip flash memory. The features of the flash memory are summarized below. * Four flash memory operating modes Program mode Erase mode Program-verify mode Erase-verify mode * Programming/erase methods The flash memory is programmed 128 bytes at a time. Block erase (in single-block units) can be performed. To erase the entire flash memory, each block must be erased in turn. Block erasing can be performed as required on 4 kbytes, 32 kbytes, and 64 kbytes blocks. * Programming/erase times The flash memory programming time is 10 ms (typ.) for simultaneous 128-byte programming, equivalent to 78 s (typ.) per byte, and the erase time is 100 ms (typ.). * Reprogramming capability The flash memory can be reprogrammed up to 100 times. * On-board programming modes There are two modes in which flash memory can be programmed/erased/verified on-board: Boot mode User program mode * Automatic bit rate adjustment With data transfer in boot mode, the LSI's bit rate can be automatically adjusted to match the transfer bit rate of the host. * Flash memory emulation in RAM Flash memory programming can be emulated in real time by overlapping a part of RAM onto flash memory. * Protect modes There are three protect modes, hardware, software, and error protection, which allow protected status to be designated for flash memory program/erase/verify operations. * Programmer mode Flash memory can be programmed/erased in programmer mode, using a PROM programmer, as well as in on-board programming mode. 899 22.4.2 Overview Block Diagram Internal address bus Internal data bus (16 bits) Module bus FLMCR1 FLMCR2 EBR1 EBR2 RAMER FLPWCR Bus interface/controller Operating mode FWE pin Mode pin Flash memory (256 kbytes) Legend FLMCR1: FLMCR2: EBR1: EBR2: RAMER: FLPWCR: Flash memory control register 1 Flash memory control register 2 Erase block register 1 Erase block register 2 RAM emulation register Flash memory power control register Figure 22-2 Block Diagram of Flash Memory 900 22.4.3 Flash Memory Operating Modes Mode Transitions When the mode pins and the FWE pin are set in the reset state and a reset-start is executed, the microcomputer enters an operating mode as shown in figure 22-3. In user mode, flash memory can be read but not programmed or erased. The boot, user program and programmer modes are provided as modes to write and erase the flash memory. MD1 = 1, MD2 = 1, FWE = 0 *1 User mode (on-chip ROM enabled) RES = 0 Reset state RES = 0 MD1 = 1, MD2 = 1, FWE = 1 RES = 0 MD1 = 0, MD2 = 0, FWE = 1 RES = 0 Programmer mode *2 FWE = 1 FWE = 0 User program mode *1 Boot mode On-board programming mode Notes: Only make a transition between user mode and user program mode when the CPU is not accessing the flash memory. *1 RAM emulation possible *2 MD0 = 0, MD1 = 0, MD2 = 0, P14 = 0, P16 = 0, PF0 = 1 Figure 22-3 Flash Memory State Transitions 901 22.4.4 On-Board Programming Modes Boot Mode 1. Initial state The old program version or data remains written in the flash memory. The user should prepare the programming control program and new application program beforehand in the host. 2. Programming control program transfer When boot mode is entered, the boot program in the H8S/2633 (originally incorporated in the chip) is started and the programming control program in the host is transferred to RAM via SCI communication. The boot program required for flash memory erasing is automatically transferred to the RAM boot program area. Host ! ", " Programming control program New application program New application program Host H8S/2633 H8S/2633 Boot program SCI Boot program SCI Flash memory RAM Flash memory RAM Boot program area Programming control program Application program (old version) Application program (old version) 3. Flash memory initialization The erase program in the boot program area (in RAM) is executed, and the flash memory is initialized (to H'FF). In boot mode, total flash memory erasure is performed, without regard to blocks. Host 4. Writing new application program The programming control program transferred from the host to RAM is executed, and the new application program in the host is written into the flash memory. Host New application program H8S/2633 H8S/2633 Boot program SCI Boot program SCI Flash memory RAM Flash memory RAM Boot program area Programming control program Boot program area Programming control program Flash memory preprogramming erase New application program Program execution state 902 User Program Mode 1. Initial state The FWE assessment program that confirms that user program mode has been entered, and the program that will transfer the programming/erase control program from flash memory to on-chip RAM should be written into the flash memory by the user beforehand. The programming/erase control program should be prepared in the host or in the flash memory. Host Programming/ erase control program New application program 2. Programming/erase control program transfer When user program mode is entered, user software confirms this fact, executes transfer program in the flash memory, and transfers the programming/erase control program to RAM. , ! Host New application program H8S/2633 H8S/2633 Boot program SCI Boot program SCI Flash memory RAM Flash memory RAM FWE assessment program FWE assessment program Transfer program Transfer program Programming/ erase control program Application program (old version) Application program (old version) 3. Flash memory initialization The programming/erase program in RAM is executed, and the flash memory is initialized (to H'FF). Erasing can be performed in block units, but not in byte units. Host 4. Writing new application program Next, the new application program in the host is written into the erased flash memory blocks. Do not write to unerased blocks. Host New application program H8S/2633 H8S/2633 Boot program SCI Boot program SCI Flash memory RAM Flash memory RAM FWE assessment program Transfer program FWE assessment program Transfer program Programming/ erase control program Programming/ erase control program Flash memory erase New application program Program execution state 903 22.4.5 Flash Memory Emulation in RAM Emulation should be performed in user mode or user program mode. When the emulation block set in RAMER is accessed while the emulation function is being executed, data written in the overlap RAM is read. SCI Flash memory Emulation block RAM Overlap RAM (emulation is performed on data written in RAM) Application program Execution state Figure 22-4 Reading Overlap RAM Data in User Mode or User Program Mode When overlap RAM data is confirmed, the RAMS bit is cleared, RAM overlap is released, and writes should actually be performed to the flash memory. When the programming control program is transferred to RAM, ensure that the transfer destination and the overlap RAM do not overlap, as this will cause data in the overlap RAM to be rewritten. 904 SCI Flash memory Programming data RAM Application program Overlap RAM (programming data) Programming control program execution state Figure 22-5 Writing Overlap RAM Data in User Program Mode 22.4.6 Differences between Boot Mode and User Program Mode Table 22-4 Differences between Boot Mode and User Program Mode Boot Mode Total erase Block erase Programming control program* Yes No Program/program-verify User Program Mode Yes Yes Erase/erase-verify Program/program-verify Emulation Note: * To be provided by the user, in accordance with the recommended algorithm. 905 22.4.7 Block Configuration The flash memory is divided into three 64 kbytes blocks, one 32 kbytes block, and eight 4 kbytes blocks. Address H'00000 4 kbytes x 8 32 kbytes 256 kbytes 64 kbytes 64 kbytes 64 kbytes Address H'3FFFF Figure 22-6 Flash Memory Block Configuration 22.4.8 Pin Configuration The flash memory is controlled by means of the pins shown in table 22-5. Table 22-5 Pin Configuration Pin Name Reset Flash write enable Mode 2 Mode 1 Mode 0 Port F0 Port 16 Port 14 Transmit data Receive data 906 Abbreviation RES FWE MD2 MD1 MD0 PF0 P16 P14 TxD2 RxD2 I/O Input Input Input Input Input Input Input Input Output Input Function Reset Flash memory program/erase protection by hardware Sets MCU operating mode Sets MCU operating mode Sets MCU operating mode Sets MCU operating mode in programmer mode Sets MCU operating mode in programmer mode Sets MCU operating mode in programmer mode Serial transmit data output Serial receive data input 22.4.9 Register Configuration The registers used to control the on-chip flash memory when enabled are shown in table 22-6. In order to access these registers, the FLSHE bit in SCRX must be set to 1 (except for RAMER and SCRX). Table 22-6 Register Configuration Register Name Flash memory control register 1 Flash memory control register 2 Erase block register 1 Erase block register 2 RAM emulation register Abbreviation FLMCR1* 5 FLMCR2* EBR1 * EBR2 * 5 5 5 5 5 R/W R/W*2 R* 2 2 2 Initial Value H'00* 3 H'00 H'00* H'00* H'00 2 4 4 Address* 1 H'FFA8 H'FFA9 H'FFAA H'FFAB H'FEDB R/W* R/W* R/W R/W* R/W RAMER* Flash memory power control register FLPWCR* Serial control register X SCRX H'00* H'00 4 H'FFAC H'FDB4 Notes: *1 Lower 16 bits of the address. *2 To access these registers, set the FLSHE bit to 1 in serial control register X. Even if FLSHE is set to 1, if the chip is in a mode in which the on-chip flash memory is disabled, a read will return H'00 and writes are invalid. Writes are also invalid when the FWE bit in FLMCR1 is not set to 1. *3 When a high level is input to the FWE pin, the initial value is H'80. *4 When a low level is input to the FWE pin, or if a high level is input and the SWE1 bit in FLMCR1 is not set, these registers are initialized to H'00. *5 FLMCR1, FLMCR2, EBR1, EBR2, RAMER, and FLPWCR are 8-bit registers. Use byte access on these registers. 22.5 22.5.1 Register Descriptions Flash Memory Control Register 1 (FLMCR1) Bit: 7 FWE Initial value: R/W: --* R 6 SWE1 0 R/W 5 ESU1 0 R/W 4 PSU1 0 R/W 3 EV1 0 R/W 2 PV1 0 R/W 1 E1 0 R/W 0 P1 0 R/W Note: * Determined by the state of the FWE pin. FLMCR1 is an 8-bit register used for flash memory operating mode control. Program-verify mode or erase-verify mode for addresses H'00000 to H'3FFFF is entered by setting SWE1 bit to 1 when FWE = 1, then setting the PV1 or EV1 bit. Program mode for addresses H'00000 to H'3FFFF is entered by setting SWE1 bit to 1 when FWE = 1, then setting the PSU1 bit, and finally setting the 907 P1 bit. Erase mode for addresses H'00000 to H'3FFFF is entered by setting SWE1 bit to 1 when FWE = 1, then setting the ESU1 bit, and finally setting the E1 bit. FLMCR1 is initialized by a power-on reset, and in hardware standby mode and software standby mode. Its initial value is H'80 when a high level is input to the FWE pin, and H'00 when a low level is input. When on-chip flash memory is disabled, a read will return H'00, and writes are invalid. Writes are enabled only in the following cases: Writes to bit SWE1 of FLMCR1 enabled when FWE = 1, to bits ESU1, PSU1, EV1, and PV1 when FWE = 1 and SWE1 = 1, to bit E1 when FWE = 1, SWE1 = 1 and ESU1 = 1, and to bit P1 when FWE = 1, SWE1 = 1, and PSU1 = 1. Bit 7--Flash Write Enable Bit (FWE): Sets hardware protection against flash memory programming/erasing. Bit 7 FWE 0 1 Description When a low level is input to the FWE pin (hardware-protected state) When a high level is input to the FWE pin Bit 6--Software Write Enable Bit 1 (SWE1): This bit selects write and erase valid/invalid of the flash memory. Set it when setting bits 5 to 0, bits 7 to 0 of EBR1, and bits 3 to 0 of EBR2. Bit 6 SWE1 0 1 Description Writes disabled Writes enabled [Setting condition] When FWE = 1 (Initial value) Bit 5--Erase Setup Bit 1 (ESU1): Prepares for a transition to erase mode. Set this bit to 1 before setting the E1 bit in FLMCR1 to 1. Do not set the SWE1, PSU1, EV1, PV1, E1, or P1 bit at the same time. Bit 5 ESU1 0 1 Description Erase setup cleared Erase setup [Setting condition] When FWE = 1 and SWE1 = 1 (Initial value) 908 Bit 4--Program Setup Bit 1 (PSU1): Prepares for a transition to program mode. Set this bit to 1 before setting the P1 bit in FLMCR1 to 1. Do not set the SWE1, ESU1, EV1, PV1, E1, or P1 bit at the same time. Bit 4 PSU1 0 1 Description Program setup cleared Program setup [Setting condition] When FWE = 1 and SWE1 = 1 (Initial value) Bit 3--Erase-Verify 1 (EV1): Selects erase-verify mode transition or clearing. Do not set the SWE1, ESU1, PSU1, PV1, E1, or P1 bit at the same time. Bit 3 EV1 0 1 Description Erase-verify mode cleared Transition to erase-verify mode [Setting condition] When FWE = 1 and SWE1 = 1 (Initial value) Bit 2--Program-Verify 1 (PV1): Selects program-verify mode transition or clearing. Do not set the SWE1, ESU1, PSU1, EV1, E1, or P1 bit at the same time. Bit 2 PV1 0 1 Description Program-verify mode cleared Transition to program-verify mode [Setting condition] When FWE = 1 and SWE1 = 1 (Initial value) 909 Bit 1--Erase 1 (E1): Selects erase mode transition or clearing. Do not set the SWE1, ESU1, PSU1, EV1, PV1, or P1 bit at the same time. Bit 1 E1 0 1 Description Erase mode cleared Transition to erase mode [Setting condition] When FWE = 1, SWE1 = 1, and ESU1 = 1 (Initial value) Bit 0--Program 1 (P1): Selects program mode transition or clearing. Do not set the SWE1, PSU1, ESU1, EV1, PV1, or E1 bit at the same time. Bit 0 P1 0 1 Description Program mode cleared Transition to program mode [Setting condition] When FWE = 1, SWE1 = 1, and PSU1 = 1 (Initial value) 22.5.2 Flash Memory Control Register 2 (FLMCR2) Bit: 7 FLER Initial value: R/W: 0 R 6 -- 0 -- 5 -- 0 -- 4 -- 0 -- 3 -- 0 -- 2 -- 0 -- 1 -- 0 -- 0 -- 0 -- Note: FLMCR2 is a read-only register, and should not be written to. FLMCR2 is an 8-bit register used for flash memory operating mode control. FLMCR2 is initialized to H'00 by a power-on reset, and in hardware standby mode and software standby mode. When on-chip flash memory is disabled, a read will return H'00. 910 Bit 7--Flash Memory Error (FLER): Indicates that an error has occurred during an operation on flash memory (programming or erasing). When FLER is set to 1, flash memory goes to the errorprotection state. Bit 7 FLER 0 Description Flash memory is operating normally Flash memory program/erase protection (error protection) is disabled [Clearing condition] Power-on reset or hardware standby mode 1 An error has occurred during flash memory programming/erasing Flash memory program/erase protection (error protection) is enabled [Setting condition] See section 22.8.3, Error Protection (Initial value) Bits 6 to 0--Reserved: These bits always read 0. 22.5.3 Erase Block Register 1 (EBR1) Bit: Initial value: R/W: 7 EB7 0 R/W 6 EB6 0 R/W 5 EB5 0 R/W 4 EB4 0 R/W 3 EB3 0 R/W 2 EB2 0 R/W 1 EB1 0 R/W 0 EB0 0 R/W EBR1 is an 8-bit register that specifies the flash memory erase area block by block. EBR1 is initialized to H'00 by a power-on reset, in hardware standby mode and software standby mode, when a low level is input to the FWE pin, and when a high level is input to the FWE pin and the SWE1 bit in FLMCR1 is not set. When a bit in EBR1 is set to 1, the corresponding block can be erased. Other blocks are erase-protected. Only one of the bits of EBR1 and EBR2 combined can be set. Do not set more than one bit, as this will cause all the bits in both EBR1 and EBR2 to be automatically cleared to 0. When on-chip flash memory is disabled, a read will return H'00, and writes are invalid. The flash memory erase block configuration is shown in table 22-7. 911 22.5.4 Erase Block Register 2 (EBR2) Bit: 7 -- Initial value: R/W: 0 R/W 6 -- 0 R/W 5 -- 0 R/W 4 -- 0 R/W 3 EB11 0 R/W 2 EB10 0 R/W 1 EB9 0 R/W 0 EB8 0 R/W EBR2 is an 8-bit register that specifies the flash memory erase area block by block. EBR2 is initialized to H'00 by a power-on reset, in hardware standby mode and software standby mode, when a low level is input to the FWE pin. Bit 0 will be initialized to 0 if bit SWE1 of FLMCR1 is not set, even though a high level is input to pin FWE. When a bit in EBR2 is set to 1, the corresponding block can be erased. Other blocks are erase-protected. Only one of the bits of EBR1 and EBR2 combined can be set. Do not set more than one bit, as this will cause all the bits in both EBR1 and EBR2 to be automatically cleared to 0. Bits 7 to 4 are reserved and must only be written with 0. When on-chip flash memory is disabled, a read will return H'00, and writes are invalid. The flash memory erase block configuration is shown in table 22-7. Table 22-7 Flash Memory Erase Blocks Block (Size) EB0 (4 kbytes) EB1 (4 kbytes) EB2 (4 kbytes) EB3 (4 kbytes) EB4 (4 kbytes) EB5 (4 kbytes) EB6 (4 kbytes) EB7 (4 kbytes) EB8 (32 kbytes) EB9 (64 kbytes) EB10 (64 kbytes) EB11 (64 kbytes) Addresses H'000000-H'000FFF H'001000-H'001FFF H'002000-H'002FFF H'003000-H'003FFF H'004000-H'004FFF H'005000-H'005FFF H'006000-H'006FFF H'007000-H'007FFF H'008000-H'00FFFF H'010000-H'01FFFF H'020000-H'02FFFF H'030000-H'03FFFF 912 22.5.5 RAM Emulation Register (RAMER) Bit: 7 -- Initial value: R/W: 0 R 6 -- 0 R 5 -- 0 R/W 4 -- 0 R/W 3 RAMS 0 R/W 2 RAM2 0 R/W 1 RAM1 0 R/W 0 RAM0 0 R/W RAMER specifies the area of flash memory to be overlapped with part of RAM when emulating real-time flash memory programming. RAMER initialized to H'00 by a power-on reset and in hardware standby mode. It is not initialized by a manual reset and in software standby mode. RAMER settings should be made in user mode or user program mode. Flash memory area divisions are shown in table 22-8. To ensure correct operation of the emulation function, the ROM for which RAM emulation is performed should not be accessed immediately after this register has been modified. Normal execution of an access immediately after register modification is not guaranteed. Bits 7 and 6--Reserved: These bits always read 0. Bits 5 and 4--Reserved: Only 0 may be written to these bits. Bit 3--RAM Select (RAMS): Specifies selection or non-selection of flash memory emulation in RAM. When RAMS = 1, all flash memory block are program/erase-protected. Bit 3 RAMS 0 Description Emulation not selected Program/erase-protection of all flash memory blocks is disabled 1 Emulation selected Program/erase-protection of all flash memory blocks is enabled (Initial value) 913 Bits 2 to 0--Flash Memory Area Selection: These bits are used together with bit 3 to select the flash memory area to be overlapped with RAM. (See table 22-8.) Table 22-8 Flash Memory Area Divisions Addresses H'FFD000-H'FFDFFF H'000000-H'000FFF H'001000-H'001FFF H'002000-H'002FFF H'003000-H'003FFF H'004000-H'004FFF H'005000-H'005FFF H'006000-H'006FFF H'007000-H'007FFF Block Name RAM area 4 kbytes EB0 (4 kbytes) EB1 (4 kbytes) EB2 (4 kbytes) EB3 (4 kbytes) EB4 (4 kbytes) EB5 (4 kbytes) EB6 (4 kbytes) EB7 (4 kbytes) RAMS 0 1 1 1 1 1 1 1 1 RAM1 * 0 0 0 0 1 1 1 1 RAM1 * 0 0 1 1 0 0 1 1 RAM0 * 0 1 0 1 0 1 0 1 *: Don't care 914 22.5.6 Flash Memory Power Control Register (FLPWCR) Bit: 7 PDWND Initial value: R/W: 0 R/W 6 -- 0 R 5 -- 0 R 4 -- 0 R 3 -- 0 R 2 -- 0 R 1 -- 0 R 0 -- 0 R FLPWCR enables or disables a transition to the flash memory power-down mode when the LSI switches to subactive mode. Bit 7--Power-Down Disable (PDWND): Enables or disables a transition to the flash memory power-down mode when the LSI switches to subactive mode. Bit 7 PDWND 0 1 Description Transition to flash memory power-down mode enabled Transition to flash memory power-down mode disabled (Initial value) Bits 6 to 0--Reserved: These bits always read 0. 22.5.7 Serial Control Register X (SCRX) Bit: 7 -- Initial value: R/W: 0 R/W 6 IICX1 0 R/W 5 IICX0 0 R/W 4 IICE 0 R/W 3 FLSHE 0 R/W 2 -- 0 R/W 1 -- 0 R/W 0 -- 0 R/W SCRX is an 8-bit readable/writable register that controls on-chip flash memory. SCRX is initialized to H'00 by a reset and in hardware standby mode. Bit 7--Reserved: This bit should always be written with 0. Bits 6 and 5--I2C Transfer Rate Select (IICX1 and IICX0): These bits, together with bits CKS2 to CKS0 in ICMR, select the transfer rate in master mode. For details of the transfer rate, see section 18.2.4, I2C Bus Mode Register (ICMR). Bit 4--I2C Master Enable (IICE): Controls access to the I2C bus interface data registers and control registers (ICCR, ICSR, ICDR/SARX, and ICMR/SAR). For details of the control, see section 18.2.7, Serial Control Register X (SCRX). 915 Bit 3--Flash Memory Control Register Enable (FLSHE): Controls CPU access to the flash memory control registers (FLMCR1, FLMCR2, EBR1, and EBR2). Setting the FLSHE bit to 1 enables read/write access to the flash memory control registers. If FLSHE is cleared to 0, the flash memory control registers are deselected. In this case, the flash memory control register contents are retained. Bit 3 FLSHE 0 1 Description Flash control registers deselected in area H'FFFFA8 to H'FFFFAC Flash control registers selected in area H'FFFFA8 to H'FFFFAC (Initial value) Bits 2 to 0--Reserved: Should always be written with 0. 22.6 On-Board Programming Modes When pins are set to on-board programming mode and a reset-start is executed, a transition is made to the on-board programming state in which program/erase/verify operations can be performed on the on-chip flash memory. There are two on-board programming modes: boot mode and user program mode. The pin settings for transition to each of these modes are shown in table 22-9. For a diagram of the transitions to the various flash memory modes, see figure 22-11. Table 22-9 Setting On-Board Programming Modes Mode Boot mode Expanded mode Single-chip mode User program mode Expanded mode Single-chip mode 1 FWE 1 MD2 0 0 1 1 MD1 1 1 1 1 MD0 0 1 0 1 916 22.6.1 Boot Mode When boot mode is used, the flash memory programming control program must be prepared in the host beforehand. The SCI channel to be used is set to asynchronous mode. When a reset-start is executed after the H8S/2633 Series' pins have been set to boot mode, the boot program built into the H8S/2633 Series is started and the programming control program prepared in the host is serially transmitted to the H8S/2633 Series via the SCI. In the H8S/2633 Series, the programming control program received via the SCI is written into the programming control program area in on-chip RAM. After the transfer is completed, control branches to the start address of the programming control program area and the programming control program execution state is entered (flash memory programming is performed). The transferred programming control program must therefore include coding that follows the programming algorithm given later. The system configuration in boot mode is shown in figure 22-7, and the boot mode execution procedure in figure 22-8. H8S/2633 Series Flash memory Host Write data reception Verify data transmission RxD2 SCI2 TxD2 On-chip RAM Figure 22-7 System Configuration in Boot Mode 917 Start Set pins to boot mode and execute reset-start Host transfers data (H'00) continuously at prescribed bit rate H8S/2633 measures low period of H'00 data transmitted by host H8S/2633 calculates bit rate and sets value in bit rate register After bit rate adjustment, H8S/2633 transmits one H'00 data byte to host to indicate end of adjustment Host confirms normal reception of bit rate adjustment end indication (H'00), and transmits one H'55 data byte After receiving H'55, LSI transmits one H'AA data byte to host Host transmits number of programming control program bytes (N), upper byte followed by lower byte H8S/2633 transmits received number of bytes to host as verify data (echo-back) n=1 Host transmits programming control program sequentially in byte units H8S/2633 transmits received programming control program to host as verify data (echo-back) Transfer received programming control program to on-chip RAM No Yes End of transmission Check flash memory data, and if data has already been written, erase all blocks After confirming that all flash memory data has been erased, H8S/2633 transmits one H'AA data byte to host Execute programming control program transferred to on-chip RAM n+1n n = N? Note: If a memory cell does not operate normally and cannot be erased, one H'FF byte is transmitted as an erase error, and the erase operation and subsequent operations are halted. Figure 22-8 Boot Mode Execution Procedure 918 Automatic SCI Bit Rate Adjustment Start bit Stop bit D0 D1 D2 D3 D4 D5 D6 D7 Low period (9 bits) measured (H'00 data) High period (1 or more bits) When boot mode is initiated, the H8S/2633 Series measures the low period of the asynchronous SCI communication data (H'00) transmitted continuously from the host. The SCI transmit/receive format should be set as follows: 8-bit data, 1 stop bit, no parity. The H8S/2633 Series calculates the bit rate of the transmission from the host from the measured low period, and transmits one H'00 byte to the host to indicate the end of bit rate adjustment. The host should confirm that this adjustment end indication (H'00) has been received normally, and transmit one H'55 byte to the H8S/2633 Series. If reception cannot be performed normally, initiate boot mode again (reset), and repeat the above operations. Depending on the host's transmission bit rate and the H8S/2633 Series' system clock frequency, there will be a discrepancy between the bit rates of the host and the H8S/2633 Series. Set the host transfer bit rate at 2,400, 4,800, 9,600 or 19,200 bps to operate the SCI properly. Table 22-10 shows host transfer bit rates and system clock frequencies for which automatic adjustment of the H8S/2633 Series bit rate is possible. The boot program should be executed within this system clock range. Table 22-10 System Clock Frequencies for which Automatic Adjustment of H8S/2633 Series Bit Rate is Possible Host Bit Rate 2,400 bps 4,800 bps 9,600 bps 19,200 bps System Clock Frequency for Which Automatic Adjustment of H8S/2633 Series Bit Rate is Possible 2 to 8 MHz 4 to 16 MHz 8 to 25 MHz 16 to 25 MHz 919 On-Chip RAM Area Divisions in Boot Mode: In boot mode, the RAM area is divided into an area used by the boot program and an area to which the programming control program is transferred via the SCI, as shown in figure 22-9. The boot program area cannot be used until the execution state in boot mode switches to the programming control program transferred from the host. H'FFC000 Programming control program area (8 kbytes) H'FFDFFF H'FFE000 Boot program area (4 kbytes) H'FFEFBF Note: The boot program area cannot be used until a transition is made to the execution state for the programming control program transferred to RAM. Note also that the boot program remains in this area of the on-chip RAM even after control branches to the programming control program. Figure 22-9 RAM Areas in Boot Mode Notes on Use of Boot Mode: * When the chip comes out of reset in boot mode, it measures the low-level period of the input at the SCI's RxD2 pin. The reset should end with RxD2 high. After the reset ends, it takes approximately 100 states before the chip is ready to measure the low-level period of the RxD2 pin. * In boot mode, if any data has been programmed into the flash memory (if all data is not 1), all flash memory blocks are erased. Boot mode is for use when user program mode is unavailable, such as the first time on-board programming is performed, or if the program activated in user program mode is accidentally erased. * Interrupts cannot be used while the flash memory is being programmed or erased. * The RxD2 and TxD2 pins should be pulled up on the board. * Before branching to the programming control program (RAM area H'FFC000), the chip terminates transmit and receive operations by the on-chip SCI (channel 2) (by clearing the RE and TE bits in SCR to 0), but the adjusted bit rate value remains set in BRR. The transmit data output pin, TxD2, goes to the high-level output state (PA1DDR = 1, PA1DR = 1). 920 The contents of the CPU's internal general registers are undefined at this time, so these registers must be initialized immediately after branching to the programming control program. In particular, since the stack pointer (SP) is used implicitly in subroutine calls, etc., a stack area must be specified for use by the programming control program. The initial values of other on-chip registers are not changed. * Boot mode can be entered by making the pin settings shown in table 22-9 and executing a reset-start. Boot mode can be cleared by driving the reset pin low, waiting at least 20 states, then setting the FWE pin and mode pins, and executing reset release*1. Boot mode can also be cleared by a WDT overflow reset. Do not change the mode pin input levels in boot mode, and do not drive the FWE pin low while the boot program is being executed or while flash memory is being programmed or erased* 2. * If the mode pin input levels are changed (for example, from low to high) during a reset, the state of ports with multiplexed address functions and bus control output pins (AS, RD, and HWR) will change according to the change in the microcomputer's operating mode*3. Therefore, care must be taken to make pin settings to prevent these pins from becoming output signal pins during a reset, or to prevent collision with signals outside the microcomputer. Notes: *1 Mode pin and FWE pin input must satisfy the mode programming setup time (tMDS = 4 states) with respect to the reset release timing. *2 For further information on FWE application and disconnection, see section 22.13, Flash Memory Programming and Erasing Precautions. *3 See Appendix D, Pin States. 22.6.2 User Program Mode When set to user program mode, the chip can program and erase its flash memory by executing a user program/erase control program. Therefore, on-board reprogramming of the on-chip flash memory can be carried out by providing on-board means of FWE control and supply of programming data, and storing a program/erase control program in part of the program area as necessary. To select user program mode, select a mode that enables the on-chip flash memory (mode 6 or 7), and apply a high level to the FWE pin. In this mode, on-chip supporting modules other than flash memory operate as they normally would in modes 6 and 7. The flash memory itself cannot be read while the SWE1 bit is set to 1 to perform programming or erasing, so the control program that performs programming and erasing should be run in on-chip RAM or external memory. If the program is to be located in external memory, the instruction for writing to flash memory, and the following instruction, should be placed in on-chip RAM. 921 Figure 22-10 shows the procedure for executing the program/erase control program when transferred to on-chip RAM. Write the FWE assessment program and transfer program (and the program/erase control program if necessary) beforehand MD2, MD1, MD0 = 110, 111 Reset-start Transfer program/erase control program to RAM Branch to program/erase control program in RAM area FWE = high* Execute program/erase control program (flash memory rewriting) Clear FWE* Branch to flash memory application program Notes: Do not apply a constant high level to the FWE pin. Apply a high level to the FWE pin only when the flash memory is programmed or erased. Also, while a high level is applied to the FWE pin, the watchdog timer should be activated to prevent overprogramming or overerasing due to program runaway, etc. * For further information on FWE application and disconnection, see section 22.13, Flash Memory Programming and Erasing Precautions. Figure 22-10 User Program Mode Execution Procedure 922 22.7 Programming/Erasing Flash Memory A software method, using the CPU, is employed to program and erase flash memory in the onboard programming modes. There are four flash memory operating modes: program mode, erase mode, program-verify mode, and erase-verify mode. Transitions to these modes are made by setting the PSU1, ESU1, P1, E1, PV1, and EV1 bits in FLMCR1 for addresses H'000000 to H'03FFFF. The flash memory cannot be read while it is being written or erased. The flash memory cannot be read while being programmed or erased. Therefore, the program (user program) that controls flash memory programming/erasing should be located and executed in on-chip RAM or external memory. If the program is to be located in external memory, the instruction for writing to flash memory, and the following instruction, should be placed in on-chip RAM. Also ensure that the DTC and DMAC is not activated before or after execution of the flash memory write instruction. In the following operation descriptions, wait times after setting or clearing individual bits in FLMCR1 are given as parameters; for details of the wait times, see section 25.6 and 26.6, Flash Memory Characteristics. Notes: 1. Operation is not guaranteed if bits SWE1, ESU1, PSU1, EV1, PV1, E1, and P1 of FLMCR1 are set/reset by a program in flash memory in the corresponding address areas. 2. When programming or erasing, set FWE to 1 (programming/erasing will not be executed if FWE = 0). 3. Programming should be performed in the erased state. Do not perform additional programming on previously programmed addresses. 923 *3 E1 = 1 Erase setup state E1 = 0 Normal mode ESU1 = 1 *1 ESU1 = 0 Erase-verify mode Erase mode FWE = 1 FWE = 0 *2 EV1 = 1 EV1 = 0 PSU1 = 1 PSU1 = 0 On-board SWE1 = 1 Software programming mode programming Software programming enable disable state SWE1 = 0 state *4 P1 = 1 Program setup state P1 = 0 Program mode PV1 = 1 PV1 = 0 Program-verify mode Notes: In order to perform a normal read of flash memory, SWE must be cleared to 0. Also note that verify-reads can be performed during the programming/erasing process. *1 : Normal mode : On-board programming mode *2 Do not make a state transition by setting or clearing multiple bits simultaneously. *3 After a transition from erase mode to the erase setup state, do not enter erase mode without passing through the software programming enable state. *4 After a transition from program mode to the program setup state, do not enter program mode without passing through the software programming enable state. Figure 22-11 FLMCR1 Bit Settings and State Transitions 22.7.1 Program Mode When writing data or programs to flash memory, the program/program-verify flowchart shown in figure 22-12 should be followed. Performing program operations according to this flowchart will enable data or programs to be written to flash memory without subjecting the device to voltage stress or sacrificing program data reliability. Programming should be carried out 128 bytes at a time. The wait times after bits are set or cleared in the flash memory control register 1 (FLMCR1) and the maximum number of programming operations (N1 + N2) are shown in table 25-13 and 26-13 in section 25.6 and 26.6, Flash Memory Characteristics. 924 Following the elapse of (x0) s or more after the SWE1 bit is set to 1 in FLMCR1, 128-byte program data is stored in the program data area and reprogram data area, and the 128-byte data in the program data area in RAM is written consecutively to the program address (the lower 8 bits of the first address written to must be H'00 or H'80). 128 consecutive byte data transfers are performed. The program address and program data are latched in the flash memory. A 128-byte data transfer must be performed even if writing fewer than 128 bytes; in this case, H'FF data must be written to the extra addresses. Next, the watchdog timer is set to prevent overprogramming in the event of program runaway, etc. Set a value greater than (y + z2 + + ) ms as the WDT overflow period. After this, preparation for program mode (program setup) is carried out by setting the PSU1 bit in FLMCR1, and after the elapse of (y) s or more, the operating mode is switched to program mode by setting the P1 bit in FLMCR1. The time during which the P1 bit is set is the flash memory programming time. Refer to the table in figure 22-12 for the programming time. 22.7.2 Program-Verify Mode In program-verify mode, the data written in program mode is read to check whether it has been correctly written in the flash memory. After the elapse of the given programming time, clear the P1 bit in FLMCR1, then wait for at least () s before clearing the PSU1 bit to exit program mode. After the elapse of at least () s, the watchdog timer is cleared and the operating mode is switched to program-verify mode by setting the PV1 bit in FLMCR1. Before reading in program-verify mode, a dummy write of H'FF data should be made to the addresses to be read. The dummy write should be executed after the elapse of () s or more. When the flash memory is read in this state (verify data is read in 16-bit units), the data at the latched address is read. Wait at least () s after the dummy write before performing this read operation. Next, the originally written data is compared with the verify data, and reprogram data is computed (see figure 22-12) and transferred to RAM. After verification of 128 bytes of data has been completed, exit program-verify mode, wait for at least () s, then clear the SWE1 bit in FLMCR1. If reprogramming is necessary, set program mode again, and repeat the program/program-verify sequence as before. The maximum number of repetitions of the program/program-verify sequence is indicated by the maximum programming count (N1 + N2). However, ensure that the program/program-verify sequence is not repeated more than (N1 + N2) times on the same bits. 925 Notes on Program/Program-Verify Procedure 1. In order to perform 128-byte-unit programming, the lower 8 bits of the write start address must be H'00 or H'80. 2. When performing continuous writing of 128-byte data to flash memory, byte-unit transfer should be used. 128-byte data transfer is necessary even when writing fewer than 128 bytes of data. Write H'FF data to the extra addresses. 3. Verify data is read in word units. 4. The write pulse is applied and a flash memory write executed while the P1 bit in FLMCR1 is set. In the H8S/2633, write pulses should be applied as follows in the program/program-verify procedure to prevent voltage stress on the device and loss of write data reliability. a. After write pulse application, perform a verify-read in program-verify mode and apply a write pulse again for any bits read as 1 (reprogramming processing). When all the 0-write bits in the 128-byte write data are read as 0 in the verify-read operation, the program/program-verify procedure is completed. In the H8S/2633, the number of loops in reprogramming processing is guaranteed not to exceed the maximum value of the maximum programming count (N). b. After write pulse application, a verify-read is performed in program-verify mode, and programming is judged to have been completed for bits read as 0. c. If programming of other bits is incomplete in the 128 bytes, reprogramming processing should be executed. If a bit for which programming has been judged to be completed is read as 1 in a subsequent verify-read, a write pulse should again be applied to that bit. 5. The period for which the P1 bit in FLMCR1 is set (the write pulse width) should be changed according to the degree of progress through the program/program-verify procedure. For detailed wait time specifications, see section 25.6 and 26.6, Flash Memory Characteristics. 6. The program/program-verify flowchart for the H8S/2633 is shown in figure 22-12. To cover the points noted above, bits on which reprogramming processing is to be executed, and bits on which additional programming is to be executed, must be determined as shown below. Since reprogram data and additional-programming data vary according to the progress of the programming procedure, it is recommended that the following data storage areas (128 bytes each) be provided in RAM. 926 Reprogram Data Computation Table Result of Verify-Read after Write Pulse (X) Application (V) Result of Operation 0 1 0 1 1 0 1 1 (D) 0 0 1 1 Comments Programming completed: reprogramming processing not to be executed Programming incomplete: reprogramming processing to be executed Still in erased state: no action Legend (D): Source data of bits on which programming is executed (X): Source data of bits on which reprogramming is executed Additional-Programming Data Computation Table Result of Verify-Read after Write Pulse (Y) (X') Application (V) Result of Operation 0 0 0 Comments Programming by write pulse application judged to be completed: additional programming processing to be executed Programming by write pulse application incomplete: additional programming processing not to be executed Programming already completed: additional programming processing not to be executed Still in erased state: no action 0 1 1 1 1 0 1 1 1 Legend (Y): Data of bits on which additional programming is executed (X'): Data of bits on which reprogramming is executed in a certain reprogramming loop 7. It is necessary to execute additional programming processing during the course of the H8S/2633 program/program-verify procedure. However, once 128-byte-unit programming is finished, additional programming should not be carried out on the same address area. When executing reprogramming, an erase must be executed first. Note that normal operation of reads, etc., is not guaranteed if additional programming is performed on addresses for which a program/program-verify operation has finished. 927 Start of programming START Set SWE1 bit in FLMCR1 Write pulse application subroutine*5 Sub-Routine Write Pulse Enable WDT Set PSU1 bit in FLMCR1 Wait (y) s Set P1 bit in FLMCR1 tsp10 or tsp30 or tsp200: Wait (z0) s or (z1) s or (z2) s Clear P1 bit in FLMCR1 Wait () s Clear PSU1 bit in FLMCR1 Wait () s Disable WDT End Sub Note *6: Programming Time P1 Bit Set Time (s) Additional Number of Writes Programming Programming 1 z0 z1 2 z0 z1 * * * * * * * * * Programming must be executed in the erased state. Do not perform additional programming on addresses that have already been programmed. Wait (x 0) s Store 128 bytes of program data in program *4 data area and reprogram data area n=1 m=0 Successively write 128-byte reprogram data to flash memory Sub-Routine-Call *1 Write pulse application subroutine Set PV1 bit in FLMCR1 Wait () s H'FF dummy write to verify address Wait () s Read verify data Increment address Program data = verify data? OK N1 n? NG NG m=1 nn+1 *2 OK Additional-programming data computation Transfer additional-programming data to additional-programming data area Reprogram data computation *4 *3 *4 N1-1 N1 N1+1 N1+2 N1+3 * * * z0 z0 z2 z2 z2 * * * z1 z1 -- -- -- * * * Transfer reprogram data to reprogram data area 128-byte data verification completed? OK Clear PV1 bit in FLMCR1 tcpv: NG N1+N2-2 N1+N2-1 N1+N2 z2 z2 z2 -- -- -- Wait () s N1 n? NG RAM Program data storage area (128 bytes) Successively write 128-byte data from additional- 1 * programming data area in RAM to flash memory Sub-Routine-Call Additional programming subroutine Reprogram data storage area (128 bytes) m=0? NG n (N1 + N2) ? NG Additional-programming data storage area (128 bytes) OK Clear SWE1 bit in FLMCR1 tcswe: OK Clear SWE1 bit in FLMCR1 Wait (x1) s Programming failure Wait (x1) s End of programming Notes: *1 Data transfer is performed by byte transfer. The lower 8 bits of the first address written to must be H'00 or H'80. A 128-byte data transfer must be performed even if writing fewer than 128 bytes; in this case, H'FF data must be written to the extra addresses. *2 Verify data is read in 16-bit (word) units. *3 Even bits for which programming has been completed in the 128-byte programming loop will be subject to programming again if they fail the subsequent verify operation. *4 A 128-byte area for storing program data, a 128-byte area for storing reprogram data, and a 128-byte area for storing additional-programming data must be provided in RAM. The reprogram and additional-programming data contents are modified as programming proceeds. *5 A write pulse of 30 s or 200 s is applied according to the progress of the programming operation. See Note 6 for details of the pulse widths. When writing of additional-programming data is executed, a 10 s write pulse should be applied. Reprogram data X' means reprogram data when the write pulse is applied. Reprogram Data Computation Table Original Data (D) 0 0 1 1 Verify Data (V) 0 1 0 1 Reprogram Data (X) 1 0 1 1 Comments Programming complete Programming is incomplete: reprogramming should be performed Left in the erased state Additional-Programming Data Computation Table Reprogram Data (X') 0 0 1 1 Verify Data (V) 0 1 0 1 Additional-Programming Data (X) 0 1 1 1 Comments Additional programming should be performed Additional programming should not be performed Additional programming should not be performed Additional programming should not be performed Figure 22-12 Program/Program-Verify Flowchart 928 22.7.3 Erase Mode When erasing flash memory, the single-block erase/erase-verify flowchart shown in figure 22-13 should be followed. To erase flash memory contents, make a 1-bit setting for the flash memory area to be erased in erase block register 1 and 2 (EBR1, EBR2) at least (x) s after setting the SWE1 bit to 1 in FLMCR1. Next, the watchdog timer (WDT) is set to prevent overerasing due to program runaway, etc. Set a value greater than (y + z + + ) ms as the WDT overflow period. Preparation for entering erase mode (erase setup) is performed next by setting the ESU1 bit in FLMCR1. The operating mode is then switched to erase mode by setting the E1 bit in FLMCR1 after the elapse of at least (y) s. The time during which the E1 bit is set is the flash memory erase time. Ensure that the erase time does not exceed (z) ms. Note: With flash memory erasing, preprogramming (setting all memory data in the memory to be erased to all 0) is not necessary before starting the erase procedure. 22.7.4 Erase-Verify Mode In erase-verify mode, data is read after memory has been erased to check whether it has been correctly erased. After the elapse of the fixed erase time, clear the E1 bit in FLMCR1, then wait for at least () s before clearing the ESU1 bit to exit erase mode. After exiting erase mode, the watchdog timer is cleared after the elapse of () s or more. The operating mode is then switched to erase-verify mode by setting the EV1 bit in FLMCR1. Before reading in erase-verify mode, a dummy write of H'FF data should be made to the addresses to be read. The dummy write should be executed after the elapse of () s or more. When the flash memory is read in this state (verify data is read in 16bit units), the data at the latched address is read. Wait at least () s after the dummy write before performing this read operation. If the read data has been erased (all 1), a dummy write is performed to the next address, and erase-verify is performed. If the read data is unerased, set erase mode again and repeat the erase/erase-verify sequence in the same way. The maximum number of reoperations of the erase/erase-verify sequence is indicated by the maximum erase count (N). However, ensure that the erase/erase-verify sequence is not repeated more than (N) times. When verification is completed, exit erase-verify mode, and wait for at least () s. If erasure has been completed on all the erase blocks, clear the SWE1 bit in FLMCR1. If there are any unerased blocks, make a 1 bit setting for the flash memory area to be erased, and repeat the erase/eraseverify sequence as before. 929 Start *1 Set SWE1 bit in FLMCR1 Wait (x) s n=1 Set EBR1 and 2 Enable WDT Set ESU1 bit in FLMCR1 Wait (y) s Set E1 bit in FLMCR1 Wait (z) ms Clear E1 bit in FLMCR1 Wait () s Clear ESU1 bit in FLMCR1 Wait () s Disable WDT Set EV1 bit in FLMCR1 Wait () s Set block start address to verify address nn+1 Halt erase Start erase *3 H'FF dummy write to verify address Wait () s Increment address Read verify data Verify data = all "1"? OK NG Last address of block? OK Clear EV1 bit in FLMCR1 Wait () s NG *4 *2 NG Clear EV1 bit in FLMCR1 Wait () s NG End of erasing of all erase blocks? OK n (N)? OK Clear SWE1 bit in FLMCR1 Wait (x 1) s Erase failure Clear SWE1 bit in FLMCR1 Wait (x 1) s End of erasing Notes: *1 *2 *3 *4 Preprogramming (setting erase block data to all "0") is not necessary. Verify data is read in 16-bit (word) units. Set only one bit in EBR1 and 2. More than 2 bits cannot be set. Erasing is performed in block units. To erase a number of blocks, each block must be erased in turn. Figure 22-13 Erase/Erase-Verify Flowchart 930 22.8 Protection There are three kinds of flash memory program/erase protection: hardware protection, software protection, and error protection. 22.8.1 Hardware Protection Hardware protection refers to a state in which programming/erasing of flash memory is forcibly disabled or aborted. Hardware protection is reset by settings in flash memory control register 1 (FLMCR1), flash memory control register 2 (FLMCR2), erase block register 1 (EBR1), and erase block register 2 (EBR2). The FLMCR1, FLMCR2, EBR1, and EBR2 settings are retained in the error-protected state. (See table 22-11.) Table 22-11 Hardware Protection Functions Item FWE pin protection Description * When a low level is input to the FWE pin, FLMCR1, FLMCR2, (except bit FLER) EBR1, and EBR2 are initialized, and the program/erase-protected state is entered. In a power-on reset (including a WDT power-on reset) and in standby mode, FLMCR1, FLMCR2, EBR1, and EBR2 are initialized, and the program/eraseprotected state is entered. In a reset via the RES pin, the reset state is not entered unless the RES pin is held low until oscillation stabilizes after powering on. In the case of a reset during operation, hold the RES pin low for the RES pulse width specified in the AC Characteristics section. Program Yes Erase Yes Reset/standby protection * Yes Yes * 931 22.8.2 Software Protection Software protection can be implemented by setting the SWE1 bit in FLMCR1, erase block register 1 (EBR1), erase block register 2 (EBR2), and the RAMS bit in the RAM emulation register (RAMER). When software protection is in effect, setting the P1 or E1 bit in flash memory control register 1 (FLMCR1), does not cause a transition to program mode or erase mode. (See table 22-12.) Table 22-12 Software Protection Functions Item SWE bit protection Description * Setting bit SWE1 in FLMCR1 to 0 will place area H'000000 to H'03FFFF in the program/erase-protected state (Execute the program in the on-chip RAM, external memory). Erase protection can be set for individual blocks by settings in erase block register 1 (EBR1) and erase block register 2 (EBR2). Setting EBR1 and EBR2 to H'00 places all blocks in the erase-protected state. Setting the RAMS bit to 1 in the RAM emulation register (RAMER) places all blocks in the program/erase-protected state. Program Yes Erase Yes Block specification protection * -- Yes * Emulation protection * Yes Yes 932 22.8.3 Error Protection In error protection, an error is detected when H8S/2633 Series runaway occurs during flash memory programming/erasing, or operation is not performed in accordance with the program/erase algorithm, and the program/erase operation is aborted. Aborting the program/erase operation prevents damage to the flash memory due to overprogramming or overerasing. If the H8S/2633 Series malfunctions during flash memory programming/erasing, the FLER bit is set to 1 in FLMCR2 and the error protection state is entered. The FLMCR1, FLMCR2, EBR1, and EBR2 settings are retained, but program mode or erase mode is aborted at the point at which the error occurred. Program mode or erase mode cannot be re-entered by re-setting the P1 or E1 bit. However, PV1 and EV1 bit setting is enabled, and a transition can be made to verify mode. FLER bit setting conditions are as follows: 1. When the flash memory of the relevant address area is read during programming/erasing (including vector read and instruction fetch) 2. Immediately after exception handling (excluding a reset) during programming/erasing 3. When a SLEEP instruction (including software standby) is executed during programming/erasing 4. When the CPU releases the bus to the DTC Error protection is released only by a power-on reset and in hardware standby mode. 933 Figure 22-14 shows the flash memory state transition diagram. Program mode Erase mode RD VF PR ER FLER = 0 RES = 0 or HSTBY = 0 Reset or standby (hardware protection) RD VF PR ER FLER = 0 Error occurrence (software standby) Error occurrence RES = 0 or HSTBY = 0 RES = 0 or HSTBY = 0 FLMCR1, FLMCR2, EBR1, EBR2 initialization state Error protection mode RD VF PR ER FLER = 1 Software standby mode Software standby mode release Error protection mode (software standby) RD VF PR ER FLER = 1 FLMCR1, FLMCR2, (except bit FLER) EBR1, EBR2 initialization state Legend RD: Memory read possible VF: Verify-read possible PR: Programming possible ER: Erasing possible RD: VF: PR: ER: Memory read not possible Verify-read not possible Programming not possible Erasing not possible Figure 22-14 Flash Memory State Transitions 934 22.9 Flash Memory Emulation in RAM Making a setting in the RAM emulation register (RAMER) enables part of RAM to be overlapped onto the flash memory area so that data to be written to flash memory can be emulated in RAM in real time. After the RAMER setting has been made, accesses cannot be made from the flash memory area or the RAM area overlapping flash memory. Emulation can be performed in user mode and user program mode. Figure 22-15 shows an example of emulation of real-time flash memory programming. Start of emulation program Set RAMER Write tuning data to overlap RAM Execute application program No Tuning OK? Yes Clear RAMER Write to flash memory emulation block End of emulation program Figure 22-15 Flowchart for Flash Memory Emulation in RAM 935 This area can be accessed from both the RAM area and flash memory area H'00000 EB0 H'01000 EB1 H'02000 EB2 H'03000 EB3 H'04000 EB4 H'05000 EB5 H'06000 EB6 H'07000 EB7 H'08000 H'FFD000 Flash memory EB8 to EB11 On-chip RAM H'FFEFBF H'3FFFF H'FFDFFF Figure 22-16 Example of RAM Overlap Operation Example in which Flash Memory Block Area EB0 is Overlapped 1. Set bits RAMS, RAM2 to RAM0 in RAMER to 1, 0, 0, 0, to overlap part of RAM onto the area (EB0) for which real-time programming is required. 2. Real-time programming is performed using the overlapping RAM. 3. After the program data has been confirmed, the RAMS bit is cleared, releasing RAM overlap. 4. The data written in the overlapping RAM is written into the flash memory space (EB0). Notes: 1. When the RAMS bit is set to 1, program/erase protection is enabled for all blocks regardless of the value of RAM2 to RAM0 (emulation protection). In this state, setting the P1 or E1 bit in flash memory control register 1 (FLMCR1), will not cause a transition to program mode or erase mode. When actually programming or erasing a flash memory area, the RAMS bit should be cleared to 0. 2. A RAM area cannot be erased by execution of software in accordance with the erase algorithm while flash memory emulation in RAM is being used. 3. Block area EB0 contains the vector table. When performing RAM emulation, the vector table is needed in the overlap RAM. 936 22.10 Interrupt Handling when Programming/Erasing Flash Memory All interrupts, including NMI interrupt is disabled when flash memory is being programmed or erased (when the P1 or E1 bit is set in FLMCR1), and while the boot program is executing in boot mode*1, to give priority to the program or erase operation. There are three reasons for this: 1. Interrupt during programming or erasing might cause a violation of the programming or erasing algorithm, with the result that normal operation could not be assured. 2. In the interrupt exception handling sequence during programming or erasing, the vector would not be read correctly*2, possibly resulting in MCU runaway. 3. If interrupt occurred during boot program execution, it would not be possible to execute the normal boot mode sequence. For these reasons, in on-board programming mode alone there are conditions for disabling interrupt, as an exception to the general rule. However, this provision does not guarantee normal erasing and programming or MCU operation. All requests, including NMI interrupt, must therefore be restricted inside and outside the MCU when programming or erasing flash memory. NMI interrupt is also disabled in the error-protection state while the P1 or E1 bit remains set in FLMCR1. Notes: *1 Interrupt requests must be disabled inside and outside the MCU until the programming control program has completed programming. *2 The vector may not be read correctly in this case for the following two reasons: * If flash memory is read while being programmed or erased (while the P1 or E1 bit is set in FLMCR1), correct read data will not be obtained (undetermined values will be returned). * If the interrupt entry in the vector table has not been programmed yet, interrupt exception handling will not be executed correctly. 22.11 Flash Memory Programmer Mode Programs and data can be written and erased in programmer mode as well as in the on-board programming modes. In programmer mode, flash memory read mode, auto-program mode, autoerase mode, and status read mode are supported. In auto-program mode, auto-erase mode, and status read mode, a status polling procedure is used, and in status read mode, detailed internal signals are output after execution of an auto-program or auto-erase operation. In programmer mode, set the mode pins to programmer mode (see table 22-13) and input a 12 MHz input clock. Table 22-13 shows the pin settings for programmer mode. For the pin names in programmer mode, see figure 22-18. 937 Table 22-13 Programmer Mode Pin Settings Pin Names Mode pins: MD2, MD1, MD0 Mode setting pins: PF0, P16, P14 FWE pin RES pin XTAL, EXTAL, PLLVCC*, PLLCAP, PLLVSS pins Settings Low level input to MD2, MD1, and MD0. High level input to PF0, low level input to P16 and P14 High level input (in auto-program and auto-erase modes) Power-on reset circuit Oscillator circuit Note: * The H8S/2633R does not have a PLLVCC pin. (The pin in that position is an NC pin.) 22.11.1 Socket Adapter Pin Correspondence Diagram Connect the socket adapter to the chip as shown in figure 22-18. This will enable conversion to a 40-pin arrangement. The on-chip ROM memory map is shown in figure 22-17, and the socket adapter pin correspondence diagram in figure 22-18. Addresses in MCU mode H'000000 Addresses in programmer mode H'00000 On-chip ROM space 256 kbytes H'03FFFF H'3FFFF Figure 22-17 On-Chip ROM Memory Map 938 H8S/2633 Pin No. FP-128 5 6 7 8 10 12 13 14 16 18 19 20 21 22 23 24 25 26 27 49 51 52 53 54 55 56 57 47 45 46 82 11, 17, 43, 50, 60, 80, 81, 84, 87, 89, 98, 101, 102 1, 2, 9, 15, 28, 29, 30, 34, 38, 48, 62, 86, 91, 119, 128 79 83 85 76 77 78 TFP-120 1 2 3 4 6 8 9 10 12 14 15 16 17 18 19 20 21 22 23 43 45 46 47 48 49 50 51 41 39 40 74 7, 13, 37, 44, 54, 72,73, 76, 79, 81, 90, 91, 92 A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14 A15 A16 A17 A18 D0 D1 D2 D3 D4 D5 D6 D7 CE OE WE FWE PVCC, VCC*1, VCL*2 Other fixed highlevel pins Pin Name Socket Adapter (Conversion to 40-Pin Arrangement) HN27C4096HG (40 Pins) Pin No. 21 22 23 24 25 26 27 28 29 31 32 33 34 35 36 37 38 39 10 19 18 17 16 15 14 13 12 2 20 3 4 1, 40 11, 30 5, 6, 7 8 9 Pin Name A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14 A15 A16 A17 A18 I/O0 I/O1 I/O2 I/O3 I/O4 I/O5 I/O6 I/O7 CE OE WE FWE VCC VSS NC A20 A19 5, 11, 24, 25, 26, 30, VSS Other fixed low32, 42, 56, 78, 83, 109, 118, 119, 120 level pins 71 75 77 68 69 70 RES XTAL EXTAL PLL VCC *1 PLLCAP PLL VSS NC (OPEN) PLL circuit Power-on reset circuit Oscillator circuit Legend FWE: I/O7-I/O0: A18-A0: CE: OE: WE: Flash write enable Data input/output Address input Chip enable Output enable Write enable Other than the above Other than the above Notes: *1 The H8S/2633R does not have these pins (they are NC pins). *2 H8S/2633R only (VCC pin on H8S/2633). Figure 22-18 Socket Adapter Pin Correspondence Diagram 939 22.11.2 Programmer Mode Operation Table 22-14 shows how the different operating modes are set when using programmer mode, and table 22-15 lists the commands used in programmer mode. Details of each mode are given below. * Memory Read Mode Memory read mode supports byte reads. * Auto-Program Mode Auto-program mode supports programming of 128 bytes at a time. Status polling is used to confirm the end of auto-programming. * Auto-Erase Mode Auto-erase mode supports automatic erasing of the entire flash memory. Status polling is used to confirm the end of auto-programming. * Status Read Mode Status polling is used for auto-programming and auto-erasing, and normal termination can be confirmed by reading the I/O6 signal. In status read mode, error information is output if an error occurs. Table 22-14 Settings for Various Operating Modes In Programmer Mode Pin Names Mode Read Output disable Command write Chip disable* 1 FWE H or L H or L H or L* H or L 3 CE L L L H OE L H H X WE H H L X I/O7- I/O0 Data output Hi-Z Data input Hi-Z A18-A0 Ain* 2 X Ain* 2 X Notes: *1 Chip disable is not a standby state; internally, it is an operation state. *2 Ain indicates that there is also address input in auto-program mode. *3 For command writes in auto-program and auto-erase modes, input a high level to the FWE pin. 940 Table 22-15 Programmer Mode Commands Number of Cycles 1+n 129 2 2 1st Cycle Mode Write Write Write Write Address Data X X X X H'00 H'40 H'20 H'71 Mode Read Write Write Write 2nd Cycle Address Data RA WA X X Dout Din H'20 H'71 Command Name Memory read mode Auto-program mode Auto-erase mode Status read mode Notes: 1. In auto-program mode, 129 cycles are required for command writing by a simultaneous 128-byte write. 2. In memory read mode, the number of cycles depends on the number of address write cycles (n). 22.11.3 Memory Read Mode 1. After completion of auto-program/auto-erase/status read operations, a transition is made to the command wait state. When reading memory contents, a transition to memory read mode must first be made with a command write, after which the memory contents are read. 2. In memory read mode, command writes can be performed in the same way as in the command wait state. 3. Once memory read mode has been entered, consecutive reads can be performed. 4. After powering on, memory read mode is entered. Table 22-16 AC Characteristics in Transition to Memory Read Mode (Conditions: VCC = 3.3 V 0.3 V, VSS = 0 V, Ta = 25C 5C) Item Command write cycle CE hold time CE setup time Data hold time Data setup time Write pulse width WE rise time WE fall time Symbol t nxtc t ceh t ces t dh t ds t wep tr tf Min 20 0 0 50 50 70 -- -- Max -- -- -- -- -- -- 30 30 Unit s ns ns ns ns ns ns ns 941 Command write A18-A0 tces CE tceh tnxtc Memory read mode Address stable OE tf WE twep tr tds I/O7-I/O0 tdh Note: Data is latched on the rising edge of WE. Figure 22-19 Timing Waveforms for Memory Read after Memory Write Table 22-17 AC Characteristics in Transition from Memory Read Mode to Another Mode (Conditions: VCC = 3.3 V 0.3 V, VSS = 0 V, Ta = 25C 5C) Item Command write cycle CE hold time CE setup time Data hold time Data setup time Write pulse width WE rise time WE fall time Symbol t nxtc t ceh t ces t dh t ds t wep tr tf Min 20 0 0 50 50 70 -- -- Max -- -- -- -- -- -- 30 30 Unit s ns ns ns ns ns ns ns 942 Memory read mode A18-A0 Address stable tnxtc CE Other mode command write tces tceh OE tf WE twep tr tds I/O7-I/O0 Note: Do not enable WE and OE at the same time. tdh Figure 22-20 Timing Waveforms in Transition from Memory Read Mode to Another Mode Table 22-18 AC Characteristics in Memory Read Mode (Conditions: VCC = 3.3 V 0.3 V, VSS = 0 V, Ta = 25C 5C) Item Access time CE output delay time OE output delay time Output disable delay time Data output hold time Symbol t acc t ce t oe t df t oh Min -- -- -- -- 5 Max 20 150 150 100 -- Unit s ns ns ns ns A18-A0 Address stable Address stable CE OE WE VIL VIL VIH tacc toh tacc toh I/O7-I/O0 Figure 22-21 CE and OE Enable State Read Timing Waveforms 943 A18-A0 CE Address stable tce toe Address stable tce toe OE WE tacc toh I/O7-I/O0 tdf tacc toh VIH tdf Figure 22-22 CE and OE Clock System Read Timing Waveforms 22.11.4 Auto-Program Mode 1. In auto-program mode, 128 bytes are programmed simultaneously. This should be carried out by executing 128 consecutive byte transfers. 2. A 128-byte data transfer is necessary even when programming fewer than 128 bytes. In this case, H'FF data must be written to the extra addresses. 3. The lower 7 bits of the transfer address must be low. If a value other than an effective address is input, processing will switch to a memory write operation but a write error will be flagged. 4. Memory address transfer is performed in the second cycle (figure 22-23). Do not perform transfer after the third cycle. 5. Do not perform a command write during a programming operation. 6. Perform one auto-program operation for a 128-byte block for each address. Two or more additional programming operations cannot be performed on a previously programmed address block. 7. Confirm normal end of auto-programming by checking I/O6. Alternatively, status read mode can also be used for this purpose (I/O7 status polling uses the auto-program operation end decision pin). 8. Status polling I/O6 and I/O7 pin information is retained until the next command write. As long as the next command write has not been performed, reading is possible by enabling CE and OE. 944 Table 22-19 AC Characteristics in Auto-Program Mode (Conditions: VCC = 3.3 V 0.3 V, VSS = 0 V, Ta = 25C 5C) Item Command write cycle CE hold time CE setup time Data hold time Data setup time Write pulse width Status polling start time Status polling access time Address setup time Address hold time Memory write time Write setup time Write end setup time WE rise time WE fall time Symbol t nxtc t ceh t ces t dh t ds t wep t wsts t spa t as t ah t write t pns t pnh tr tf Min 20 0 0 50 50 70 1 -- 0 60 1 100 100 -- -- Max -- -- -- -- -- -- -- 150 -- -- 3000 -- -- 30 30 Unit s ns ns ns ns ns ms ns ns ns ms ns ns ns ns FWE tpnh Address stable tpns tces tceh tnxtc tnxtc A18-A0 CE OE tf twep tr tas tah Data transfer 1 to 128 bytes twsts tspa WE tds tdh twrite Write operation end decision signal I/O7 I/O6 I/O5-I/O0 Write normal end decision signal H'40 H'00 Figure 22-23 Auto-Program Mode Timing Waveforms 945 22.11.5 Auto-Erase Mode 1. Auto-erase mode supports only entire memory erasing. 2. Do not perform a command write during auto-erasing. 3. Confirm normal end of auto-erasing by checking I/O6. Alternatively, status read mode can also be used for this purpose (I/O7 status polling uses the auto-erase operation end decision pin). 4. Status polling I/O6 and I/O7 pin information is retained until the next command write. As long as the next command write has not been performed, reading is possible by enabling CE and OE. Table 22-20 AC Characteristics in Auto-Erase Mode (Conditions: V CC = 3.3 V 0.3 V, VSS = 0 V, Ta = 25C 5C) Item Command write cycle CE hold time CE setup time Data hold time Data setup time Write pulse width Status polling start time Status polling access time Memory erase time Erase setup time Erase end setup time WE rise time WE fall time Symbol t nxtc t ceh t ces t dh t ds t wep t ests t spa t erase t ens t enh tr tf Min 20 0 0 50 50 70 1 -- 100 100 100 -- -- Max -- -- -- -- -- -- -- 150 40000 -- -- 30 30 Unit s ns ns ns ns ns ms ns ms ns ns ns ns 946 FWE tenh A18-A0 tens tces tceh tnxtc tnxtc CE OE tf twep tr tests tspa WE tds tdh terase Erase end decision signal I/O7 I/O6 I/O5-I/O0 Erase normal end decision signal H'20 H'20 H'00 Figure 22-24 Auto-Erase Mode Timing Waveforms 947 22.11.6 Status Read Mode 1. Status read mode is provided to identify the kind of abnormal end. Use this mode when an abnormal end occurs in auto-program mode or auto-erase mode. 2. The return code is retained until a command write other than a status read mode command write is executed. Table 22-21 AC Characteristics in Status Read Mode (Conditions: VCC = 3.3 V 0.3 V, VSS = 0 V, Ta = 25C 5C) Item Read time after command write CE hold time CE setup time Data hold time Data setup time Write pulse width OE output delay time Disable delay time CE output delay time WE rise time WE fall time Symbol t nxtc t ceh t ces t dh t ds t wep t oe t df t ce tr tf Min 20 0 0 50 50 70 -- -- -- -- -- Max -- -- -- -- -- -- 150 100 150 30 30 Unit s ns ns ns ns ns ns ns ns ns ns A18-A0 tces tceh tnxtc tces tceh tnxtc tnxtc CE tce OE tf twep tr tf twep tr toe WE tds tdh H'71 tds H'71 tdh tdf I/O7-I/O0 Note: I/O2 and I/O3 are undefined. Figure 22-25 Status Read Mode Timing Waveforms 948 Table 22-22 Status Read Mode Return Commands Pin Name I/O7 Attribute Normal end decision I/O6 Command error I/O5 Programming error I/O4 Erase error I/O3 -- I/O2 -- I/O1 I/O0 ProgramEffective ming or address error erase count exceeded 0 0 Initial value 0 Indications Normal end: 0 Abnormal end: 1 0 Command error: 1 0 0 0 0 -- ProgramErasing -- ming error: 1 Otherwise: 0 error: 1 Otherwise: 0 Otherwise: 0 Count Effective exceeded: 1 address Otherwise: 0 error: 1 Otherwise: 0 Note: I/O2 and I/O3 are undefined. 22.11.7 Status Polling 1. The I/O7 status polling flag indicates the operating status in auto-program/auto-erase mode. 2. The I/O6 status polling flag indicates a normal or abnormal end in auto-program/auto-erase mode. Table 22-23 Status Polling Output Truth Table Pin Name I/O7 I/O6 I/O0-I/O5 During Internal Operation 0 0 0 Abnormal End 1 0 0 -- 0 1 0 Normal End 1 1 0 22.11.8 Programmer Mode Transition Time Commands cannot be accepted during the oscillation stabilization period or the programmer mode setup period. After the programmer mode setup time, a transition is made to memory read mode. Table 22-24 Stipulated Transition Times to Command Wait State Item Standby release (oscillation stabilization time) Programmer mode setup time VCC hold time Symbol t osc1 t bmv t dwn Min 30 10 0 Max -- -- -- Unit ms ms ms 949 tosc1 VCC tbmv Memory read mode Command Auto-program mode wait state Auto-erase mode Command wait state Normal/abnormal end decision tdwn RES FWE Note: When using other than the automatic write mode and automatic erase mode, drive the FWE input pin low. Figure 22-26 Oscillation Stabilization Time, Boot Program Transfer Time, and Power-Down Sequence 22.11.9 Notes on Memory Programming 1. When programming addresses which have previously been programmed, carry out autoerasing before auto-programming. 2. When performing programming using programmer mode on a chip that has been programmed/erased in an on-board programming mode, auto-erasing is recommended before carrying out auto-programming. Notes: 1. The flash memory is initially in the erased state when the device is shipped by Hitachi. For other chips for which the erasure history is unknown, it is recommended that autoerasing be executed to check and supplement the initialization (erase) level. 2. Auto-programming should be performed once only on the same address block. Additional programming cannot be performed on previously programmed address blocks. 950 22.12 Flash Memory and Power-Down States In addition to its normal operating state, the flash memory has power-down states in which power consumption is reduced by halting part or all of the internal power supply circuitry. There are three flash memory operating states: (1) Normal operating mode: The flash memory can be read and written to. (2) Power-down mode: Part of the power supply circuitry is halted, and the flash memory can be read when the H8S/2633 is operating on the subclock. (3) Standby mode: All flash memory circuits are halted, and the flash memory cannot be read or written to. States (2) and (3) are flash memory power-down states. Table 22-25 shows the correspondence between the operating states of the H8S/2633 and the flash memory. Table 22-25 Flash Memory Operating States LSI Operating State High-speed mode Medium-speed mode Sleep mode Subactive mode Subsleep mode Watch mode Software standby mode Hardware standby mode When PDWND = 0: Power-down mode (read-only) When PDWND = 1: Normal mode (read-only) Standby mode Flash Memory Operating State Normal mode (read/write) 22.12.1 Note on Power-Down States When the flash memory is in a power-down state, part or all of the internal power supply circuitry is halted. Therefore, a power supply circuit stabilization period must be provided when returning to normal operation. When the flash memory returns to its normal operating state from a powerdown state, bits STS2 to STS0 in SBYCR must be set to provide a wait time of at least 20 s (power supply stabilization time), even if an oscillation stabilization period is not necessary. 951 22.13 Flash Memory Programming and Erasing Precautions Precautions concerning the use of on-board programming mode, the RAM emulation function, and programmer mode are summarized below. Use the specified voltages and timing for programming and erasing: Applied voltages in excess of the rating can permanently damage the device. Use a PROM programmer that supports the Hitachi microcomputer device type with 256-kbyte on-chip flash memory (FZTAT256V3A). Do not select the HN27C4096 setting for the PROM programmer, and only use the specified socket adapter. Failure to observe these points may result in damage to the device. Powering on and off (see figures 22-27 to 22-29): Do not apply a high level to the FWE pin until VCC has stabilized. Also, drive the FWE pin low before turning off VCC. When applying or disconnecting VCC power, fix the FWE pin low and place the flash memory in the hardware protection state. The power-on and power-off timing requirements should also be satisfied in the event of a power failure and subsequent recovery. FWE application/disconnection (see figures 22-27 to 22-29): FWE application should be carried out when MCU operation is in a stable condition. If MCU operation is not stable, fix the FWE pin low and set the protection state. The following points must be observed concerning FWE application and disconnection to prevent unintentional programming or erasing of flash memory: * Apply FWE when the VCC voltage has stabilized within its rated voltage range. Apply FWE when oscillation has stabilized (after the elapse of the oscillation stabilization time). * In boot mode, apply and disconnect FWE during a reset. * In user program mode, FWE can be switched between high and low level regardless of the reset state. FWE input can also be switched during execution of a program in flash memory. * Do not apply FWE if program runaway has occurred. * Disconnect FWE only when the SWE1, ESU1, PSU1, EV1, PV1, P1, and E1 bits in FLMCR1 are cleared. Make sure that the SWE1, ESU1, PSU1, EV1, PV1, P1, and E1 bits are not set by mistake when applying or disconnecting FWE. 952 Do not apply a constant high level to the FWE pin: Apply a high level to the FWE pin only when programming or erasing flash memory. A system configuration in which a high level is constantly applied to the FWE pin should be avoided. Also, while a high level is applied to the FWE pin, the watchdog timer should be activated to prevent overprogramming or overerasing due to program runaway, etc. Use the recommended algorithm when programming and erasing flash memory: The recommended algorithm enables programming and erasing to be carried out without subjecting the device to voltage stress or sacrificing program data reliability. When setting the P1 or E1 bit in FLMCR1, the watchdog timer should be set beforehand as a precaution against program runaway, etc. Do not set or clear the SWE1 bit during execution of a program in flash memory: Wait for at least 100 s after clearing the SWE1 bit before executing a program or reading data in flash memory. When the SWE1 bit is set, data in flash memory can be rewritten, but when SWE1 = 1, flash memory can only be read in program-verify or erase-verify mode. Access flash memory only for verify operations (verification during programming/erasing). Also, do not clear the SWE1 bit during programming, erasing, or verifying. Similarly, when using the RAM emulation function while a high level is being input to the FWE pin, the SWE1 bit must be cleared before executing a program or reading data in flash memory. However, the RAM area overlapping flash memory space can be read and written to regardless of whether the SWE1 bit is set or cleared. Do not use interrupts while flash memory is being programmed or erased: All interrupt requests, including NMI, should be disabled during FWE application to give priority to program/erase operations. Do not perform overwriting. Erase the memory before reprogramming: In on-board programming, perform only one programming operation on a 128-byte programming unit block. In programmer mode, too, perform only one programming operation on a 128-byte programming unit block. Programming should be carried out with the entire programming unit block erased. Before programming, check that the chip is correctly mounted in the PROM programmer: Overcurrent damage to the device can result if the index marks on the PROM programmer socket, socket adapter, and chip are not correctly aligned. Do not touch the socket adapter or chip during programming: Touching either of these can cause contact faults and write errors. 953 Wait time: x Programming/ erasing possible Wait time: 100 s o tOSC1 VCC Min 0 s FWE tMDS*3 Min 0 s MD2 to MD0*1 tMDS*3 RES SWE1 set SWE1 bit SWE1 cleared Period during which flash memory access is prohibited (x: Wait time after setting SWE1 bit)*2 Period during which flash memory can be programmed (Execution of program in flash memory prohibited, and data reads other than verify operations prohibited) Notes: *1 Except when switching modes, the level of the mode pins (MD2 to MD0) must be fixed until power-off by pulling the pins up or down. *2 See section 25.6 and 26.6, Flash Memory Characteristics. *3 Mode programming setup time tMDS (min) = 200 ns Figure 22-27 Power-On/Off Timing (Boot Mode) 954 Wait time: x Programming/ erasing possible Wait time: 100 s o tOSC1 VCC Min 0 s FWE MD2 to MD0*1 tMDS*3 RES SWE1 set SWE1 bit SWE1 cleared Period during which flash memory access is prohibited (x: Wait time after setting SWE1 bit)*2 Period during which flash memory can be programmed (Execution of program in flash memory prohibited, and data reads other than verify operations prohibited) Notes: *1 Except when switching modes, the level of the mode pins (MD2 to MD0) must be fixed until power-off by pulling the pins up or down. *2 See section 25.6 and 26.6, Flash Memory Characteristics. *3 Mode programming setup time tMDS (min) = 200 ns Figure 22-28 Power-On/Off Timing (User Program Mode) 955 Wait time: x Programming/erasing possible Wait time: x Programming/erasing possible Wait time: 100 s Wait time: x Programming/erasing possible Wait time: 100 s Programming/erasing possible Wait time: 100 s o tOSC1 VCC Min 0 s FWE tMDS tMDS*2 MD2 to MD0 tMDS tRESW RES SWE1 set Mode change*1 Boot mode SWE1 bit SWE1 cleared Mode User change*1 mode User program mode User mode User program mode Period during which flash memory access is prohibited (x: Wait time after setting SWE1 bit)*3 Period during which flash memory can be programmed (Execution of program in flash memory prohibited, and data reads other than verify operations prohibited) Notes: *1 When entering boot mode or making a transition from boot mode to another mode, mode switching must be carried out by means of RES input. The state of ports with multiplexed address functions and bus control output pins (AS, RD, WR) will change during this switchover interval (the interval during which the RES pin input is low), and therefore these pins should not be used as output signals during this time. *2 When making a transition from boot mode to another mode, a mode programming setup time tMDS (min) of 200 ns is necessary with respect to RES clearance timing. *3 See section 25.6 and 26.6, Flash Memory Characteristics. Figure 22-29 Mode Transition Timing (Example: Boot Mode User Mode User Program Mode) 956 Wait time: x Wait time: 100 s 22.14 Note on Switching from F-ZTAT Version to Mask ROM Version The mask ROM version does not have the internal registers for flash memory control that are provided in the F-ZTAT version. Table 22-26 lists the registers that are present in the F-ZTAT version but not in the mask ROM version. If a register listed in table 22-26 is read in the mask ROM version, an undefined value will be returned. Therefore, if application software developed on the F-ZTAT version is switched to a mask ROM version product, it must be modified to ensure that the registers in table 22-26 have no effect. Table 22-26 Registers Present in F-ZTAT Version but Absent in Mask ROM Version Register Flash memory control register 1 Flash memory control register 2 Erase block register 1 Erase block register 2 RAM emulation register Abbreviation FLMCR1 FLMCR2 EBR1 EBR2 RAMER Address H'FFC8 H'FFC9 H'FFCA H'FFCB H'FEDB 957 958 Section 23A Clock Pulse Generator (H8S/2633, H8S/2632, H8S/2631, H8S/2633F) 23A.1 Overview The H8S/2633 Series has a built-in clock pulse generator (CPG) that generates the system clock (o), the bus master clock, and internal clocks. The clock pulse generator consists of an oscillator, PLL (phase-locked loop) circuit, clock selection circuit, medium-speed clock divider, bus master clock selection circuit, subclock oscillator, and waveform shaping circuit. The frequency can be changed by means of the PLL circuit in the CPG. Frequency changes are performed by software by means of settings in the system clock control register (SCKCR) and low-power control register (LPWRCR). 23A.1.1 Block Diagram Figure 23A-1 shows a block diagram of the clock pulse generator. LPWRCR STC1, STC0 SCKCR SCK2 to SCK0 EXTAL XTAL System clock oscillator PLL circuit (x1, x2, x4) Clock selection circuit o SUB Mediumspeed clock divider o/2 to o/32 Bus master clock selection circuit o OSC1 OSC2 Subclock oscillator Waveform shaping circuit System clock Internal clock to to o pin supporting modules Bus master clock to CPU, DMAC and DTC WDT1 count clock Legend: LPWRCR: Low-power control register SCKCR: System clock control register Figure 23A-1 Block Diagram of Clock Pulse Generator 959 23A.1.2 Register Configuration The clock pulse generator is controlled by SCKCR and LPWRCR. Table 23A-1 shows the register configuration. Table 23A-1 Clock Pulse Generator Register Name System clock control register Low-power control register Abbreviation SCKCR LPWRCR R/W R/W R/W Initial Value H'00 H'00 Address* H'FDE6 H'FDEC Note:* Lower 16 bits of the address. 23A.2 Register Descriptions 23A.2.1 System Clock Control Register (SCKCR) Bit : 7 PSTOP Initial value: R/W : 0 R/W 6 -- 0 -- 5 -- 0 -- 4 -- 0 -- 3 STCS 0 R/W 2 SCK2 0 R/W 1 SCK1 0 R/W 0 SCK0 0 R/W SCKCR is an 8-bit readable/writable register that performs o clock output control, selection of operation when the PLL circuit frequency multiplication factor is changed, and medium-speed mode control. SCKCR is initialized to H'00 by a reset and in hardware standby mode. It is not initialized in software standby mode. Bit 7--o Clock Output Disable (PSTOP): Controls o output. Description High-Speed Mode, Medium-Speed Mode, Sleep Mode Sub-Active Mode Sub-Sleep Mode o output (initial value) Fixed high o output Fixed high Software Standby Mode, Watch Mode, Hardware Direct Transitions Standby Mode Fixed high Fixed high High impedance High impedance Bit 7 PSTOP 0 1 Bits 6 to 4--Reserved: These bits are always read as 0 and cannot be modified. 960 Bit 3--Frequency Multiplication Factor Switching Mode Select (STCS): Selects the operation when the PLL circuit frequency multiplication factor is changed. Bit 3 STCS 0 1 Description Specified multiplication factor is valid after transition to software standby mode, watch mode, and subactive mode (Initial value) Specified multiplication factor is valid immediately after STC bits are rewritten Bits 2 to 0--System Clock Select 2 to 0 (SCK2 to SCK0): These bits select the bus master clock. Bit 2 SCK2 0 Bit 1 SCK1 0 Bit 0 SCK0 0 1 1 0 1 1 0 0 1 1 -- Description Bus master is in high-speed mode Medium-speed clock is o/2 Medium-speed clock is o/4 Medium-speed clock is o/8 Medium-speed clock is o/16 Medium-speed clock is o/32 -- (Initial value) 23A.2.2 Low-Power Control Register (LPWRCR) Bit : 7 DTON Initial value : R/W : 0 R/W 6 LSON 0 R/W 5 0 R/W 4 0 R/W 3 0 R/W 2 -- 0 R/W 1 STC1 0 R/W 0 STC0 0 R/W NESEL SUBSTP RFCUT LPWRCR is an 8-bit readable/writable register that performs power-down mode control. The following pertains to bits 1 and 0. For details of the other bits, see section 24.2.3, Low-Power Control Register (LPWRCR). LPWRCR is initialized to H'00 by a reset and in hardware standby mode. It is not initialized in software standby mode. 961 Bits 1 and 0--Frequency Multiplication Factor (STC1, STC0): The STC bits specify the frequency multiplication factor of the PLL circuit. Bit 1 STC1 0 Bit 0 STC0 0 1 1 0 1 Description x1 x2 x4 Setting prohibited (Initial value) Note: A system clock frequency multiplied by the multiplication factor (STC1 and STC0) should not exceed the maximum operating frequency defined in section 25 Electrical Characteristics. 23A.3 Oscillator Clock pulses can be supplied by connecting a crystal resonator, or by input of an external clock. 23A.3.1 Connecting a Crystal Resonator Circuit Configuration: A crystal resonator can be connected as shown in the example in figure 23A-2. Select the damping resistance Rd according to table 23A-2. An AT-cut parallel-resonance crystal should be used. CL1 EXTAL XTAL Rd CL2 CL1 = CL2 = 10 to 22pF Figure 23A-2 Connection of Crystal Resonator (Example) Table 23A-2 Damping Resistance Value Frequency (MHz) 2 Rd () 1k 4 500 8 200 12 0 16 0 20 0 25 0 Crystal Resonator: Figure 23A-3 shows the equivalent circuit of the crystal resonator. Use a crystal resonator that has the characteristics shown in table 23A-3. 962 CL L XTAL Rs EXTAL AT-cut parallel-resonance type C0 Figure 23A-3 Crystal Resonator Equivalent Circuit Table 23A-3 Crystal Resonator Parameters Frequency (MHz) 2 RS max () C0 max (pF) 500 7 4 120 7 8 80 7 12 60 7 16 50 7 20 40 7 25 40 7 Note on Board Design: When a crystal resonator is connected, the following points should be noted: Other signal lines should be routed away from the oscillator circuit to prevent induction from interfering with correct oscillation. See figure 23A-4. When designing the board, place the crystal resonator and its load capacitors as close as possible to the XTAL and EXTAL pins. Avoid CL2 Signal A Signal B H8S/2633 Series XTAL EXTAL CL1 Figure 23A-4 Example of Incorrect Board Design 963 External circuitry such as that shown below is recommended around the PLL. R1: 3 k PLLCAP C1: 470 pF Rp: 200 PLLVCC CPB: 0.1 F* PLLVSS PVCC VCC CB: 0.1 F* VSS CB: 0.1 F* (Values are recommended values.) Note: * CB and CPB are laminated ceramic capacitors. Figure 23A-5 Points for Attention when Using PLL Oscillation Circuit Place oscillation stabilization capacitor C1 and resistor R1 close to the PLLCAP pin, and ensure that no other signal lines cross this line. Supply the C1 ground from PLLVSS. Separate PLLVCC and PLLVSS from the other VCC and VSS lines at the board power supply source, and be sure to insert bypass capacitors CPB and CB close to the pins. 964 23A.3.2 External Clock Input Circuit Configuration: An external clock signal can be input as shown in the examples in figure 23A-6. If the XTAL pin is left open, make sure that stray capacitance is no more than 10 pF. In example (b), make sure that the external clock is held high in standby mode. EXTAL XTAL Open External clock input (a) XTAL pin left open EXTAL XTAL External clock input (b) Complementary clock input at XTAL pin Figure 23A-6 External Clock Input (Examples) 965 External Clock Table 23A-4 and figure 23A-7 show the input conditions for the external clock. Table 23A-4 External Clock Input Conditions VCC = 3.0 V to 3.6 V, PVCC = 3.0 V to 5.5 V Item Symbol Min 20 20 -- -- 0.4 80 Clock high pulse width level t CH 0.4 80 Max -- -- 10 10 0.6 -- 0.6 -- VCC = 3.0 V to 3.6 V, PVCC = 5.0 V 10% Min 15 15 -- -- 0.4 80 0.4 80 Max -- -- 5 5 0.6 -- 0.6 -- Unit ns ns ns ns t cyc ns t cyc ns o 5 MHz Figure 25-2 o < 5 MHz o 5 MHz o < 5 MHz Test Conditions Figure 23A-7 External clock input low t EXL pulse width External clock input high pulse width t EXH External clock rise time t EXr External clock fall time Clock low pulse width level t EXf t CL tEXH tEXL EXTAL VCC x 0.5 tEXr tEXf Figure 23A-7 External Clock Input Timing 966 23A.4 PLL Circuit The PLL circuit has the function of multiplying the frequency of the clock from the oscillator by a factor of 1, 2, or 4. The multiplication factor is set with the STC bits in LPWRCR. The phase of the rising edge of the internal clock is controlled so as to match that at the EXTAL pin. When setting the multiplication factor, ensure that the clock frequency after multiplication does not exceed the maximum operating frequency of the chip. When the multiplication factor of the PLL circuit is changed, the operation varies according to the setting of the STCS bit in SCKCR. When STCS = 0 (initial value), the setting becomes valid after a transition to software standby mode, watch mode, or subactive mode. The transition time count is performed in accordance with the setting of bits STS2 to STS0 in SBYCR. [1] The initial PLL circuit multiplication factor is 1. [2] A value is set in bits STS2 to STS0 to give the specified transition time. [3] The target value is set in STC1 and STC0, and a transition is made to software standby mode, watch mode, or subactive mode. [4] The clock pulse generator stops and the value set in STC1 and STC0 becomes valid. [5] Software standby mode, watch mode, or subactive mode is cleared, and a transition time is secured in accordance with the setting in STS2 to STS0. [6] After the set transition time has elapsed, the LSI resumes operation using the target multiplication factor. If a PC break is set for the SLEEP instruction that causes a transition to software standby mode in [3], software standby mode is entered and break exception handling is executed after the oscillation stabilization time. In this case, the instruction following the SLEEP instruction is executed after execution of the RTE instruction. When STCS = 1, the LSI operates on the changed multiplication factor immediately after bits STC1 and STC0 are rewritten. 23A.5 Medium-Speed Clock Divider The medium-speed clock divider divides the system clock to generate o/2, o/4, o/8, o/16, and o/32. 23A.6 Bus Master Clock Selection Circuit The bus master clock selection circuit selects the system clock (o) or one of the medium-speed clocks (o/2, o/4, o/8, o/16, and o/32) to be supplied to the bus master, according to the settings of the SCK2 to SCK0 bits in SCKCR. 967 23A.7 Subclock Oscillator (1) Connecting 32.768kHz Quartz Resonator To supply a clock to the subclock oscillator, connect a 32.768kHz quartz resonator, as shown in figure 23A-8. See section 23A.3.1, Notes on Board Design for notes on connecting crystal resonators. C1 OSC1 C2 OSC2 C1=C2=15pF (typ) Figure 23A-8 Example Connection of 32.768kHz Crystal Resonator Figure 23A-9 shows the equivalence circuit for a 32.768kHz resonator. Ls Cs Rs OSC1 Co Co=1.5pF (typ.) Rs=14k (typ.) fw=32.768kHz OSC2 Type No.: MX38T (Nihon Dempa Kogyo) Figure 23A-9 Equivalence Circuit for 32.768kHz Resonator 968 (2) Handling pins when subclock not required If no subclock is required, connect the OSC1 pin to Vcc and leave OSC2 open, as shown in figure 23A-10. VCC OSC1 OSC2 Open Figure 23A-10 Pin Handling When Subclock Not Required 23A.8 Subclock Waveform Shaping Circuit To eliminate noise from the subclock input to OSC1, the subclock is sampled using the dividing clock o. The sampling frequency is set using the NESEL bit of LPWRCR. For details, see section 24.2.3, Low-Power Control Register (LPWRCR). No sampling is performed in sub-active mode, sub-sleep mode, or watch mode. 23A.9 Note on Crystal Resonator Since various characteristics related to the crystal resonator are closely linked to the user's board design, thorough evaluation is necessary on the user's part, for both the mask ROM versions and F-ZTAT versions, using the resonator connection examples shown in this section as a guide. As the resonator circuit ratings will depend on the floating capacitance of the resonator and the mounting circuit, the ratings should be determined in consultation with the resonator manufacturer. The design must ensure that a voltage exceeding the maximum rating is not applied to the oscillator pin. 969 970 Section 23B Clock Pulse Generator (H8S/2633R, H8S/2695) 23B.1 Overview The H8S/2633R has a built-in clock pulse generator (CPG) that generates the system clock (o), the bus master clock, and internal clocks. The clock pulse generator consists of an oscillator, PLL (phase-locked loop) circuit, clock selection circuit, medium-speed clock divider, bus master clock selection circuit, subclock oscillator, and waveform shaping circuit. The frequency can be changed by means of the PLL circuit in the CPG. Frequency changes are performed by software by means of settings in the system clock control register (SCKCR) and low-power control register (LPWRCR). The input clock frequency is 2 MHz to 25 MHz. With the H8S/2633R and H8S/2695 PLL must be set to use a multiplier of x 2 or x 4 when operating at frequencies of 25 MHz < o 28 MHz. 23B.1.1 Block Diagram Figure 23B-1 shows a block diagram of the clock pulse generator. LPWRCR STC1, STC0 EXTAL XTAL *2 SCKCR SCK2 to SCK0 Mediumspeed clock divider Clock selection circuit o SUB System clock oscillator PLL circuit (x1, x2, x4) o/2 to o/32 *1 o Bus master clock selection circuit OSC1 OSC2 Subclock oscillator Waveform shaping circuit System clock Internal clock to to o pin supporting modules WDT1 count clock Bus master clock to CPU, DMAC*1 and DTC*1 Legend: LPWRCR: Low-power control register SCKCR: System clock control register Note: *1 This function is not available in the H8S/2695. *2 The input clock frequency is 2 MHz to 25 MHz. With the H8S/2633R and H8S/2695 PLL must be set to use a multiplier of x 2 or x 4 when operating at frequencies of 25 MHz < o 28 MHz. Figure 23B-1 Block Diagram of Clock Pulse Generator 971 23B.1.2 Register Configuration The clock pulse generator is controlled by SCKCR and LPWRCR. Table 23B-1 shows the register configuration. Table 23B-1 Clock Pulse Generator Register Name System clock control register Low-power control register Abbreviation SCKCR LPWRCR R/W R/W R/W Initial Value H'00 H'00 Address* H'FDE6 H'FDEC Note:* Lower 16 bits of the address. 23B.2 Register Descriptions 23B.2.1 System Clock Control Register (SCKCR) Bit : 7 PSTOP Initial value: R/W : 0 R/W 6 -- 0 -- 5 -- 0 -- 4 -- 0 -- 3 STCS 0 R/W 2 SCK2 0 R/W 1 SCK1 0 R/W 0 SCK0 0 R/W SCKCR is an 8-bit readable/writable register that performs o clock output control, selection of operation when the PLL circuit frequency multiplication factor is changed, and medium-speed mode control. SCKCR is initialized to H'00 by a reset and in hardware standby mode. It is not initialized in software standby mode. Bit 7--o Clock Output Disable (PSTOP): Controls o output. Description High-Speed Mode, Medium-Speed Mode, Sleep Mode Sub-Active Mode Sub-Sleep Mode o output (initial value) Fixed high o output Fixed high Software Standby Mode, Watch Mode* , Hardware Direct Transitions* Standby Mode Fixed high Fixed high High impedance High impedance Bit 7 PSTOP 0 1 Note: * This function is not available in the H8S/2695. Bits 6 to 4--Reserved: These bits are always read as 0 and cannot be modified. 972 Bit 3--Frequency Multiplication Factor Switching Mode Select (STCS): Selects the operation when the PLL circuit frequency multiplication factor is changed. Bit 3 STCS 0 1 Description Specified multiplication factor is valid after transition to software standby mode, watch mode, and subactive mode (Initial value) Specified multiplication factor is valid immediately after STC bits are rewritten Bits 2 to 0--System Clock Select 2 to 0 (SCK2 to SCK0): These bits select the bus master clock. Bit 2 SCK2 0 Bit 1 SCK1 0 Bit 0 SCK0 0 1 1 0 1 1 0 0 1 1 -- Description Bus master is in high-speed mode Medium-speed clock is o/2 Medium-speed clock is o/4 Medium-speed clock is o/8 Medium-speed clock is o/16 Medium-speed clock is o/32 -- (Initial value) 23B.2.2 Low-Power Control Register (LPWRCR) H8S/2633R Bit : 7 DTON Initial value : R/W H8S/2695 Bit : 7 --* Initial value : R/W : 0 R 6 --* 0 R 5 --* 0 R/W 4 --* 0 R/W 3 --* 0 R/W 2 -- 0 R/W 1 STC1 0 R/W 0 STC0 0 R/W : 0 R/W 6 LSON 0 R/W 5 0 R/W 4 0 R/W 3 0 R/W 2 -- 0 R/W 1 STC1 0 R/W 0 STC0 0 R/W NESEL SUBSTP RFCUT Note: * On the H8S/2695 only 0 should be written to these bits. 973 LPWRCR is an 8-bit readable/writable register that performs power-down mode control. The following pertains to bits 1 and 0. For details of the other bits, see section 24.2.3, Low-Power Control Register (LPWRCR). LPWRCR is initialized to H'00 by a reset and in hardware standby mode. It is not initialized in software standby mode. Bits 1 and 0--Frequency Multiplication Factor (STC1, STC0): The STC bits specify the frequency multiplication factor of the PLL circuit. Bit 1 STC1 0 Bit 0 STC0 0 1 1 0 1 Description x1 x2 x4 Setting prohibited (Initial value) Note: A system clock frequency multiplied by the multiplication factor (STC1 and STC0) should not exceed the maximum operating frequency defined in section 26 and 27, Electrical Characteristics. The input clock frequency is 2 MHz to 25 MHz. With the H8S/2633R and H8S/2695 PLL must be set to use a multiplier of x 2 or x 4 when operating at frequencies of 25 MHz < o 28 MHz. 23B.3 Oscillator Clock pulses can be supplied by connecting a crystal resonator, or by input of an external clock. 23B.3.1 Connecting a Crystal Resonator Circuit Configuration: A crystal resonator can be connected as shown in the example in figure 23B-2. Select the damping resistance Rd according to table 23B-2. An AT-cut parallel-resonance crystal should be used. CL1 EXTAL XTAL Rd CL2 CL1 = CL2 = 10 pF to 22 pF if 2 MHz < 20 MHz CL1 = CL2 = 10 pF if 20 MHz 25 MHz Figure 23B-2 Connection of Crystal Resonator (Example) 974 Table 23B-2 Damping Resistance Value Frequency (MHz) 2 Rd () 1k 4 500 8 200 12 0 16 0 20 0 25 0 Crystal Resonator: Figure 23B-3 shows the equivalent circuit of the crystal resonator. Use a crystal resonator that has the characteristics shown in table 23B-3. CL L XTAL Rs EXTAL AT-cut parallel-resonance type C0 Figure 23B-3 Crystal Resonator Equivalent Circuit Table 23B-3 Crystal Resonator Parameters Frequency (MHz) 2 RS max () C0 max (pF) 500 7 4 120 7 8 80 7 12 60 7 16 50 7 20 40 7 25 40 7 Note on Board Design: When a crystal resonator is connected, the following points should be noted: Other signal lines should be routed away from the oscillator circuit to prevent induction from interfering with correct oscillation. See figure 23B-4. When designing the board, place the crystal resonator and its load capacitors as close as possible to the XTAL and EXTAL pins. Avoid CL2 Signal A Signal B H8S/2633R Series XTAL EXTAL CL1 Figure 23B-4 Example of Incorrect Board Design 975 External circuitry such as that shown below is recommended around the PLL. R1: 3 k PLLCAP C1: 470 pF PLLVSS PVCC CB: 0.1 F* VSS (Values are recommended values.) Note: * CB and CPB are laminated ceramic capacitors. Figure 23B-5 Points for Attention when Using PLL Oscillation Circuit Place oscillation stabilization capacitor C1 and resistor R1 close to the PLLCAP pin, and ensure that no other signal lines cross this line. Supply the C1 ground from PLLVSS. Separate PLLVSS from the other VCC and VSS lines at the board power supply source, and be sure to insert bypass capacitors CPB and CB close to the pins. 976 23B.3.2 External Clock Input Circuit Configuration: An external clock signal can be input as shown in the examples in figure 23B-6. If the XTAL pin is left open, make sure that stray capacitance is no more than 10 pF. In example (b), make sure that the external clock is held high in standby mode. EXTAL XTAL Open External clock input (a) XTAL pin left open EXTAL XTAL External clock input (b) Complementary clock input at XTAL pin Figure 23B-6 External Clock Input (Examples) 977 External Clock Table 23B-4 and figure 23B-7 show the input conditions for the external clock. Table 23B-4 External Clock Input Conditions PVCC = 5.0 V 10% Item External clock input low pulse width External clock input high pulse width External clock rise time External clock fall time Clock low pulse width level Clock high pulse width level Symbol t EXL t EXH t EXr t EXf t CL Min 15 15 -- -- 0.4 80 t CH 0.4 80 Max -- -- 5 5 0.6 -- 0.6 -- Unit ns ns ns ns t cyc ns t cyc ns o 5 MHz o < 5 MHz o 5 MHz o < 5 MHz Figure 26-2, figure 27-2 Test Conditions Figure 23B-7 tEXH tEXL EXTAL VCC x 0.5 tEXr tEXf Figure 23B-7 External Clock Input Timing 978 23B.4 PLL Circuit The PLL circuit has the function of multiplying the frequency of the clock from the oscillator by a factor of 1, 2, or 4. The multiplication factor is set with the STC bits in LPWRCR. The phase of the rising edge of the internal clock is controlled so as to match that at the EXTAL pin. When setting the multiplication factor, ensure that the clock frequency after multiplication does not exceed the maximum operating frequency of the chip. When the multiplication factor of the PLL circuit is changed, the operation varies according to the setting of the STCS bit in SCKCR. When STCS = 0 (initial value), the setting becomes valid after a transition to software standby mode, watch mode, or subactive mode. The transition time count is performed in accordance with the setting of bits STS2 to STS0 in SBYCR. [1] The initial PLL circuit multiplication factor is 1. (The upper limit for the input clock is 25 MHz. In order to use an operating frequency higher than 25 MHz a multiplication ratio of x2 or x4 must be employed.) [2] A value is set in bits STS2 to STS0 to give the specified transition time. [3] The target value is set in STC1 and STC0, and a transition is made to software standby mode, watch mode, or subactive mode. [4] The clock pulse generator stops and the value set in STC1 and STC0 becomes valid. [5] Software standby mode, watch mode, or subactive mode is cleared, and a transition time is secured in accordance with the setting in STS2 to STS0. [6] After the set transition time has elapsed, the LSI resumes operation using the target multiplication factor. If a PC break is set for the SLEEP instruction that causes a transition to software standby mode in [3], software standby mode is entered and break exception handling is executed after the oscillation stabilization time. In this case, the instruction following the SLEEP instruction is executed after execution of the RTE instruction. When STCS = 1, the LSI operates on the changed multiplication factor immediately after bits STC1 and STC0 are rewritten. 23B.5 Medium-Speed Clock Divider The medium-speed clock divider divides the system clock to generate o/2, o/4, o/8, o/16, and o/32. 979 23B.6 Bus Master Clock Selection Circuit The bus master clock selection circuit selects the system clock (o) or one of the medium-speed clocks (o/2, o/4, o/8, o/16, and o/32) to be supplied to the bus master, according to the settings of the SCK2 to SCK0 bits in SCKCR. 23B.7 Subclock Oscillator (This function is not available in the H8S/2695) (1) Connecting 32.768kHz Quartz Resonator To supply a clock to the subclock oscillator, connect a 32.768kHz quartz resonator, as shown in figure 23B-8. See section 23B.3.1, Notes on Board Design for notes on connecting crystal resonators. C1 OSC1 C2 OSC2 C1=C2=15pF (typ) Figure 23B-8 Example Connection of 32.768kHz Crystal Resonator Figure 23B-9 shows the equivalence circuit for a 32.768kHz resonator. Ls Cs Rs OSC1 Co Co=1.5pF (typ.) Rs=14k (typ.) fw=32.768kHz OSC2 Figure 23B-9 Equivalence Circuit for 32.768kHz Resonator 980 (2) Handling pins when subclock not required If no subclock is required, connect the OSC1 pin to Vss and leave OSC2 open, as shown in figure 23B-10. OSC1 OSC2 Open Figure 23B-10 Pin Handling When Subclock Not Required Note: The H8S/2695 is not equipped with a subclock function. The pins corresponding to OSC1 and OSC2 are NC pins. 23B.8 Subclock Waveform Shaping Circuit To eliminate noise from the subclock input to OSC1, the subclock is sampled using the dividing clock o. The sampling frequency is set using the NESEL bit of LPWRCR. For details, see section 24.2.3, Low-Power Control Register (LPWRCR). No sampling is performed in sub-active mode, sub-sleep mode, or watch mode. 23B.9 Note on Crystal Resonator Since various characteristics related to the crystal resonator are closely linked to the user's board design, thorough evaluation is necessary on the user's part, for both the mask ROM versions and F-ZTAT versions, using the resonator connection examples shown in this section as a guide. As the resonator circuit ratings will depend on the floating capacitance of the resonator and the mounting circuit, the ratings should be determined in consultation with the resonator manufacturer. The design must ensure that a voltage exceeding the maximum rating is not applied to the oscillator pin. 981 982 Section 24 Power-Down Modes 24.1 Overview In addition to the normal program execution state, the H8S/2633 Series has eight power-down modes in which operation of the CPU and oscillator is halted and power dissipation is reduced. Low-power operation can be achieved by individually controlling the CPU, on-chip supporting modules, and so on. The H8S/2633 Series operating modes are as follows: (1) High-speed mode (2) Medium-speed mode (3) Subactive mode* (4) Sleep mode (5) Subsleep mode* (6) Watch mode* (7) Module stop mode (8) Software standby mode (9) Hardware standby mode (2) to (9) are power down modes. Sleep mode and sub-sleep mode are CPU mode, medium-speed mode is a CPU and bus master mode, sub-active mode is a CPU and bus master and on-chip supporting module mode, and module stop mode is an on-chip supporting module mode (including bus masters other than the CPU) state. Some of these modes can be combined. After a reset, the LSI is in high-speed mode, with modules other than the DMAC and DTC in module stop mode. Table 24-1 shows the internal states of the LSI in the respective modes. Table 24-2 shows the conditions for shifting between the power-down modes. Figure 24-1 is a mode transition diagram. Note: * This function is not available in the H8S/2695. 983 Table 24-1 LSI Internal States in Each Mode Function System clock pulse generator Subclock pulse generator CPU HighSpeed MediumSpeed Sleep Module Stop *3 Watch Subactive Halted Software Hardware Subsleep Standby Standby Halted Halted Halted Function- Function- Functioning ing ing Function- Function- Functioning ing ing Function- Halted ing Function- Function- Function- Function- Function- Halted ing ing ing ing ing High/ Halted*1 Subclock Halted*1 Halted*1 Halted medium- (retained) operation (retained) (retained) (undefined) speed operation Function- Function- Function- Function- Function- Halted ing ing ing ing ing Function- Subclock Subclock Subclock Halted*1 Halted*2 ing operation operation operation (retained) (reset) Function- Halted*1 Subclock Subclock Halted*1 Halted*2 (retained) operation operation (retained) (reset) ing Halted*1 (retained) Instructions Function- Medium- Halted*1 (retained) Registers ing speed operation External NMI Function- Function- Functioninterrupts ing ing ing IRQ0-IRQ7 Peripheral WDT1*4 functions WDT0 TMR*4 DMAC *4 DTC TPU IIC0 *4 *4 Function- Function- Functioning ing ing Function- Function- Functioning ing ing Function- Medium- Functioning speed ing operation Function- Function- Functioning ing ing Halted*1 Halted*1 Halted*1 Halted*1 Halted*1 Halted*2 (retained) (retained) (retained) (retained) (retained) (reset) Halted*1 Halted*1 Halted*1 Halted*1 Halted*1 Halted*2 (retained) (retained) (retained) (retained) (retained) (reset) IIC1*4 PCB*4 PPG *4 D/A0, 1*4 SCI0 SCI1 SCI2 SCI3 SCI4 PWM0, 1 *4 A/D RAM I/O Notes: *1 *2 *3 *4 *5 *6 Function- Function- Function- Function- Retained Function- Retained Retained Retained ing ing ing (DTC)*5 ing ing Function- Function- Functioning ing ing Function- Retained Function- Retained Retained High ing ing*6 impedance Function- Function- Functioning ing ing Halted*2 (reset) Halted*2 (reset) Halted*2 (reset) Halted*2 (reset) Halted*2 (reset) Halted*2 (reset) "Halted (retained)" means that internal register values are retained. The internal state is "operation suspended." "Halted (reset)" means that internal register values and internal states are initialized. In module stop mode, only modules for which a stop setting has been made are halted (reset or retained). This function is not available in the H8S/2695. Internal register values are retained because the H8S/2695 does not have a DTC. With the exception of ports D and E, an I/O port always returns a value of 1 when read in the H8S/2633 F-ZTAT. Use as an output port is possible. 984 Program-halted state STBY pin = Low Reset state STBY pin = High RES pin = Low Hardware standby mode RES pin = High Program execution state SLEEP command High-speed mode (main clock) Any interrupt *3 SCK2 to SCK0= 0 SCK2 to SCK0 0 SLEEP command SSBY= 1, PSS= 0, LSON= 0 Software standby mode SSBY= 0, LSON= 0 Sleep mode (main clock) Medium-speed mode (main clock) External interrupt *4 SLEEP command Interrupt *2 LSON bit = 0 SSBY= 1, PSS= 1, DTON= 0 Watch mode (subclock) SLEEP command SSBY = 1, PSS = 1 DTON = 1, LSON = 0 After the oscillation stabilization time (STS2 to 0), clock switching exception processing SLEEP command SSBY = 1, PSS = 1 DTON = 1, LSON = 1 Clock switching exception processing SLEEP command Interrupt *1 LSON bit = 1 SLEEP command Interrupt *2 SSBY= 0, PSS= 1, LSON= 1 Sub-sleep mode (subclock) Sub-active mode (subclock) : Transition after exception processing Notes: *1 *2 *3 *4 : Low power dissipation mode NMI, IRQ0 to IRQ7, and WDT1 interrupts NMI, IRQ0 to IRQ7, IWDT0 interrupts, WDT1 interrupt, and TMR0 to TMR3 interrupts All interrupts NMI and IRQ0 to IRQ7 * When a transition is made between modes by means of an interrupt, the transition cannot be made on interrupt source generation alone. Ensure that interrupt handling is performed after accepting the interrupt request. * From any state except hardware standby mode, a transition to the reset state occurs when RES is driven Low. * From any state, a transition to hardware standby mode occurs when STBY is driven low. * Always select high-speed mode before making a transition to watch mode or sub-active mode. Figure 24-1(a) Mode Transition Diagram (H8S/2633 Series, H8S/2633R) 985 Program-halted state STBY pin = Low Reset state STBY pin = High RES pin = Low Hardware standby mode RES pin = High Program execution state SLEEP command High-speed mode (main clock) Any interrupt *1 SCK2 to SCK0 = 0 SCK2 to SCK0 0 SLEEP command External interrupt *2 SSBY = 0 Sleep mode (main clock) SSBY = 1, PSS = 0 Software standby mode Medium-speed mode (main clock) : Transition after exception processing : Low power dissipation mode Notes: *1 All interrupts *2 NMI and IRQ0 to IRQ7 * When a transition is made between modes by means of an interrupt, the transition cannot be made on interrupt source generation alone. Ensure that interrupt handling is performed after accepting the interrupt request. * From any state except hardware standby mode, a transition to the reset state occurs when RES is driven Low. * From any state, a transition to hardware standby mode occurs when STBY is driven low. Figure 24-1(b) Mode Transition Diagram (H8S/2695) 986 Table 24.2(a) Power-Down Mode Transition Conditions (H8S/2633 Series, H8S/2633R) Status of Control Bit at Transition State After Transition State After Transition Back from Low Power Invoked by SLEEP Mode Invoked by LSON DTON Command Interrupt 0 1 0 1 0 1 0 1 * 0 1 * 0 1 0 1 * * * * 0 0 1 1 * * * * 0 0 1 1 Sleep -- Software standby -- Watch Watch -- Sub-active -- -- Sub-sleep -- Watch Watch High-speed -- High-speed/medium-speed -- High-speed/medium-speed -- High-speed Sub-active -- -- -- -- Sub-active -- High-speed Sub-active -- -- * : Don't care --: Do not set Pre-Transition State SSBY PSS High-speed/ 0 medium-speed 0 1 1 1 1 1 1 Sub-active 0 0 0 1 1 1 1 1 * * 0 0 1 1 1 1 0 1 1 0 1 1 1 1 Table 24.2(b) Power-Down Mode Transition Conditions (H8S/2695) State before Transition High-speed/ medium-speed Control Bit (SSBY) Status at Transition 0 1 State after Transition Using SLEEP Instruction Sleep Software standby State after Return Using Interrupt High-speed/ medium-speed High-speed/ medium-speed 987 24.1.1 Register Configuration Power-down modes are controlled by the SBYCR, SCKCR, LPWRCR, TCSR (WDT1*), and MSTPCR registers. Table 24-3 summarizes these registers. Note: * WDT1 is not available in the H8S/2695. Table 24-3 Power-Down Mode Registers Name Standby control register System clock control register Low-power control register Timer control/status register (WDT1)*2 Module stop control register A, B, C Abbreviation SBYCR SCKCR LPWRCR TCSR MSTPCRA MSTPCRB MSTPCRC Notes: *1 Lower 16 bits of the address. *2 WDT1 is not available in the H8S/2695. R/W R/W R/W R/W R/W R/W R/W R/W Initial Value H'08 H'00 H'00 H'00 H'3F H'FF H'FF Address* 1 H'FDE4 H'FDE6 H'FDEC H'FFA2 H'FDE8 H'FDE9 H'FDEA 988 24.2 24.2.1 Bit Register Descriptions Standby Control Register (SBYCR) : 7 SSBY 0 R/W 6 STS2 0 R/W 5 STS1 0 R/W 4 STS0 0 R/W 3 OPE 1 R/W 2 -- 0 -- 1 -- 0 -- 0 -- 0 -- Initial value : R/W : SBYCR is an 8-bit readable/writable register that performs power-down mode control. SBYCR is initialized to H'08 by a reset and in hardware standby mode. It is not initialized in software standby mode. Bit 7--Software Standby (SSBY): When making a low power dissipation mode transition by executing the SLEEP instruction, the operating mode is determined in combination with other control bits. Note that the value of the SSBY bit does not change even when shifting between modes using interrupts. Bit 7 SSBY 0 Description Shifts to sleep mode when the SLEEP instruction is executed in high-speed mode or medium-speed mode. Shifts to sub-sleep mode* when the SLEEP instruction is executed in sub-active mode* . (Initial value) Shifts to software standby mode, sub-active mode* , and watch mode* when the SLEEP instruction is executed in high-speed mode or medium-speed mode. Shifts to watch mode * or high-speed mode when the SLEEP instruction is executed in sub-active mode* . 1 Note: * This function is not available in the H8S/2695. 989 Bits 6 to 4--Standby Timer Select 2 to 0 (STS2 to STS0): These bits select the MCU wait time for clock stabilization when shifting to high-speed mode or medium-speed mode by using a specific interrupt or command to cancel software standby mode, watch mode*, or sub-active mode*. With a crystal oscillator (table 24-5), select a wait time of 8 ms (oscillation stabilization time) or more, depending on the operating frequency. With an external clock, select a wait time of 2 ms (PLL oscillator stabilization time) or more, depending on the operating frequency. Note: * This function is not available in the H8S/2695. Bit 6 STS2 0 Bit 5 STS1 0 Bit 4 STS0 0 1 1 0 1 1 0 0 1 1 0 1 Description Standby time = 8192 states Standby time = 16384 states Standby time = 32768 states Standby time = 65536 states Standby time = 131072 states Standby time = 262144 states Reserved Standby time = 16 states (Setting prohibited) (Initial value) Bit 3--Output Port Enable (OPE): This bit specifies whether the output of the address bus and bus control signals (CS0 to CS7, AS, RD, HWR, LWR, CAS, and OE) is retained or set to highimpedance state in the software standby mode, watch mode, and when making a direct transition. Bit 3 OPE 0 1 Description In software standby mode, watch mode * , and when making a direct transition * , address bus and bus control signals are high-impedance. In software standby mode, watch mode * , and when making a direct transition * , the output state of the address bus and bus control signals is retained. (Initial value) Note: * This function is not available in the H8S/2695. Bits 2 to 0--Reserved: These bits are always read as 0 and cannot be modified. 990 24.2.2 Bit System Clock Control Register (SCKCR) : 7 PSTOP 0 R/W 6 -- 0 -- 5 -- 0 -- 4 -- 0 -- 3 STCS 0 R/W 2 SCK2 0 R/W 1 SCK1 0 R/W 0 SCK0 0 R/W Initial value : R/W : SCKCR is an 8-bit readable/writable register that performs o clock output control, selection of operation when the PLL circuit frequency multiplication factor is changed, and medium-speed mode control. SCKCR is initialized to H'00 by a reset and in hardware standby mode. It is not initialized in software standby mode. Bit 7--o Clock Output Disable (PSTOP): In combination with the DDR of the applicable port, this bit controls o output. See section 24.12, o Clock Output Disabling Function, for details. Description High-Speed Mode, Software Standby Medium-Speed Mode, Sleep Mode, Mode, Watch Mode*, Hardware Standby PSTOP Sub-Active Mode* Sub-Sleep Mode* Direct Transition Mode Bit 7 0 1 o output (initial value) Fixed high o output Fixed high Fixed high Fixed high High impedance High impedance Note: * This function is not available in the H8S/2695. Bits 6 to 4--Reserved: These bits are always read as 0 and cannot be modified. Bit 3--Frequency Multiplication Factor Switching Mode Select (STCS): Selects the operation when the PLL circuit frequency multiplication factor is changed. Bit 3 STCS 0 1 Description Specified multiplication factor is valid after transition to software standby mode, watch mode * , or subactive mode * (Initial value) Specified multiplication factor is valid immediately after STC bits are rewritten Note: * This function is not available in the H8S/2695. 991 Bits 2 to 0--System Clock Select (SCK2 to SCK0): These bits select the bus master clock in high-speed mode, medium-speed mode, and sub-active mode*. Set SCK2 to SCK0 all to 0 when shifting to operation in watch mode or sub-active mode*. Note: * This function is not available in the H8S/2695. Bit 2 SCK2 0 Bit 1 SCK1 0 Bit 0 SCK0 0 1 1 0 1 1 0 0 1 1 -- Description Bus master in high-speed mode Medium-speed clock is o/2 Medium-speed clock is o/4 Medium-speed clock is o/8 Medium-speed clock is o/16 Medium-speed clock is o/32 -- (Initial value) 24.2.3 Low-Power Control Register (LPWRCR) H8S/2633 Series, H8S/2633R Bit : 7 DTON Initial value : R/W H8S/2695 Bit : 7 --* 0 R 6 --* 0 R 5 --* 0 R/W 4 --* 0 R/W 3 --* 0 R/W 2 -- 0 R/W 1 STC1 0 R/W 0 STC0 0 R/W : 0 R/W 6 LSON 0 R/W 5 0 R/W 4 0 R/W 3 0 R/W 2 -- 0 R/W 1 STC1 0 R/W 0 STC0 0 R/W NESEL SUBSTP RFCUT Initial value : R/W : Note: * On the H8S/2695 only 0 should be written to these bits. The LPWRCR is an 8-bit read/write register that controls the low power dissipation modes. The LPWRCR is initialized to H'00 at a power-on reset and when in hardware standby mode. It is not initialized at a manual reset or when in software standby mode. The following describes bits 7 to 2. For details of other bits, see section 23A.2.2 and 23B.2.2, Low-Power Control Register (LPWRCR). 992 Bit 7--Direct Transition ON Flag (DTON): When shifting to low power dissipation mode by executing the SLEEP instruction, this bit specifies whether or not to make a direct transition between high-speed mode or medium-speed mode and the sub-active modes*. The selected operating mode after executing the SLEEP instruction is determined by the combination of other control bits. Note: * This function is not available in the H8S/2695. Bit 7 DTON 0 Description * * 1 * When the SLEEP instruction is executed in high-speed mode or medium-speed mode, operation shifts to sleep mode, software standby mode, or watch mode * 1 *2. When the SLEEP instruction is executed in sub-active mode * 2, operation shifts to sub-sleep mode* 2 or watch mode * 2. (Initial value) When the SLEEP instruction is executed in high-speed mode or medium-speed mode, operation shifts directly * 2 to sub-active mode * 1 * 2, or shifts to sleep mode or software standby mode. When the SLEEP instruction is executed in sub-active mode, operation shifts directly to high-speed mode, or shifts to sub-sleep mode. * Notes: *1 Always set high-speed mode when shifting to watch mode or sub-active mode. *2 This function is not available in the H8S/2695. 993 Bit 6--Low-Speed ON Flag (LSON): When shifting to low power dissipation mode by executing the SLEEP instruction, this bit specifies the operating mode, in combination with other control bits. This bit also controls whether to shift to high-speed mode or sub-active mode* when watch mode* is cancelled. Note: * This function is not available in the H8S/2695. Bit 6 LSON 0 Description * * * 1 * * * When the SLEEP instruction is executed in high-speed mode or medium-speed mode, operation shifts to sleep mode, software standby mode, or watch mode * 1 * 2. When the SLEEP instruction is executed in sub-active mode * 2, operation shifts to watch mode * 2 or shifts directly* 2 to high-speed mode. Operation shifts to high-speed mode when watch mode is cancelled. (Initial value) When the SLEEP instruction is executed in high-speed mode, operation shifts to watch mode * 2 or sub-active mode* 2. When the SLEEP instruction is executed in sub-active mode * 2, operation shifts to sub-sleep mode* 2 or watch mode * 2. Operation shifts to sub-active * 2 mode when watch mode* 2 is cancelled. Notes: *1 Always set high-speed mode when shifting to watch mode or sub-active mode. *2 This function is not available in the H8S/2695. Bit 5--Noise Elimination Sampling Frequency Select (NESEL): This bit selects the sampling frequency of the subclock (oSUB) generated by the subclock oscillator is sampled by the clock (o) generated by the system clock oscillator. Set this bit to 0 when o=5MHz or more. Bit 5 NESEL 0 1 Description Sampling using 1/32 xo Sampling using 1/4 xo (Initial value) Bit 4--Subclock enable (SUBSTP): This bit enables/disables subclock generation. Bit 4 SUBSTP Description 0 1 Enables subclock generation Disables subclock generation (Initial value) 994 Bit 3--Oscillation Circuit Feedback Resistance Control Bit (RFCUT): This bit turns the internal feedback resistance of the main clock oscillation circuit ON/OFF. Bit 3 RFCUT 0 1 Description When the main clock is oscillating, sets the feedback resistance ON. When the main clock is stopped, sets the feedback resistance OFF (Initial value) Sets the feedback resistance OFF Bit 2--Reserved: Should always be written with 0. 24.2.4 Timer Control/Status Register (TCSR) WDT1 TCSR Bit : 7 OVF Initial value : R/W : 0 R/(W)* 6 WT/IT 0 R/W 5 TME 0 R/W 4 PSS 0 R/W 3 RST/NMI 0 R/W 2 CKS2 0 R/W 1 CKS1 0 R/W 0 CKS0 0 R/W Note: * Only write 0 to clear the flag. TCSR is an 8-bit read/write register that selects the clock input to WDT1 TCNT and the mode. The following describes bit 4. For details of the other bits in this register, see section 15.2.2, Timer Control/Status Register (TCSR). The TCSR is initialized to H'00 at a reset and when in hardware standby mode. It is not initialized in software standby mode. Bit 4--Prescaler select (PSS)*1: This bit selects the clock source input to WDT1 TCNT. It also controls operation when shifting low power dissipation modes. The operating mode selected after the SLEEP instruction is executed is determined in combination with other control bits. For details, see the description for clock selection in section 15.2.2, Timer Control/Status Register (TCSR), and this section. 995 WDT1 TCSR Bit 4 PSS* 1 0 Description * * 1 * * * TCNT counts the divided clock from the o -based prescaler (PSM). When the SLEEP instruction is executed in high-speed mode or medium-speed mode, operation shifts to sleep mode or software standby mode. (Initial value) TCNT counts the divided clock from the osubclock-based prescaler (PSS). When the SLEEP instruction is executed in high-speed mode or medium-speed mode, operation shifts to sleep mode, watch mode* 2, or sub-active mode * 2. When the SLEEP instruction is executed in sub-active mode, operation shifts to subsleep mode, watch mode, or high-speed mode. Notes: *1 In the H8S/2695 only a 0 may be written to the PSS bit in the TCSR1 register. *2 Always set high-speed mode when shifting to watch mode or sub-active mode. 24.2.5 Module Stop Control Register (MSTPCR) MSTPCRA Bit : 7 6 5 4 3 2 1 0 MSTPA7 MSTPA6 MSTPA5 MSTPA4 MSTPA3 MSTPA2 MSTPA1 MSTPA0 Initial value : R/W MSTPCRB Bit : 7 6 5 4 3 2 1 0 : 0 R/W 0 R/W 1 R/W 1 R/W 1 R/W 1 R/W 1 R/W 1 R/W MSTPB7 MSTPB6 MSTPB5 MSTPB4 MSTPB3 MSTPB2 MSTPB1 MSTPB0 Initial value : R/W MSTPCRC Bit : 7 6 5 4 3 2 1 0 : 1 R/W 1 R/W 1 R/W 1 R/W 1 R/W 1 R/W 1 R/W 1 R/W MSTPC7 MSTPC6 MSTPC5 MSTPC4 MSTPC3 MSTPC2 MSTPC1 MSTPC0 Initial value : R/W : 1 R/W 1 R/W 1 R/W 1 R/W 1 R/W 1 R/W 1 R/W 1 R/W MSTPCR, comprising three 8-bit readable/writable registers, performs module stop mode control. 996 MSTPCR is initialized to H'3FFFFF by a reset and in hardware standby mode. It is not initialized in software standby mode. MSTPCRA/MSTPCRB/MSTPCRC Bits 7 to 0--Module Stop (MSTPA7 to MSTPA0, MSTPB7 to MSTPB0, MSTPC7 to MSTPC0): These bits specify module stop mode. See table 24-4 for the method of selecting the on-chip peripheral functions. MSTPCRA/MSTPCRB/ MSTPCRC Bits 7 to 0 MSTPA7 to MSTPA0, MSTPB7 to MSTPB0, MSTPC7 to MSTPC0 0 1 Description Module stop mode is cleared (initial value of MSTPA7 and MSTPA6) Module stop mode is set (initial value of MSTPA5 to MSTPA0, MSTPB7 to MSTPB0, and MSTPC7 to MSTPC0) 24.3 Medium-Speed Mode In high-speed mode, when the SCK2 to SCK0 bits in SCKCR are set to 1, the operating mode changes to medium-speed mode as soon as the current bus cycle ends. In medium-speed mode, the CPU operates on the operating clock (o/2, o/4, o/8, o/16, or o/32) specified by the SCK2 to SCK0 bits. The bus masters other than the CPU (the DMAC and DTC) also operate in medium-speed mode. On-chip supporting modules other than the bus masters always operate on the high-speed clock (o). In medium-speed mode, a bus access is executed in the specified number of states with respect to the bus master operating clock. For example, if o/4 is selected as the operating clock, on-chip memory is accessed in 4 states, and internal I/O registers in 8 states. Medium-speed mode is cleared by clearing all of bits SCK2 to SCK0 to 0. A transition is made to high-speed mode and medium-speed mode is cleared at the end of the current bus cycle. If a SLEEP instruction is executed when the SSBY bit in SBYCR is cleared to 0, and LSON bit in LPWRCR is cleared to 0, a transition is made to sleep mode. When sleep mode is cleared by an interrupt, medium-speed mode is restored. When the SLEEP instruction is executed with the SSBY bit = 1, LPWRCR LSON bit = 0, and TCSR (WDT1) PSS bit = 0, operation shifts to the software standby mode. When software standby mode is cleared by an external interrupt, medium-speed mode is restored. When the RES and MRES pins are set Low and medium-speed mode is cancelled, operation shifts to the reset state. The same applies in the case of a reset caused by overflow of the watchdog timer. 997 When the STBY pin is driven low, a transition is made to hardware standby mode. Figure 24-2 shows the timing for transition to and clearance of medium-speed mode. Medium-speed mode o, supporting module clock Bus master clock Internal address bus SBYCR SBYCR Internal write signal Figure 24-2 Medium-Speed Mode Transition and Clearance Timing 24.4 24.4.1 Sleep Mode Sleep Mode When the SLEEP instruction is executed when the SBYCR SSBY bit = 0 and the LPWRCR LSON bit = 0, the CPU enters the sleep mode. In sleep mode, CPU operation stops but the contents of the CPU's internal registers are retained. Other supporting modules do not stop. 24.4.2 Exiting Sleep Mode Sleep mode is exited by any interrupt, or signals at the RES, MRES, or STBY pins. (1) Exiting Sleep Mode by Interrupts When an interrupt occurs, sleep mode is exited and interrupt exception processing starts. Sleep mode is not exited if the interrupt is disabled, or interrupts other than NMI are masked by the CPU. (2) Exiting Sleep Mode by RES or MRES Pins Setting the RES or MRES pin level Low selects the reset state. After the stipulated reset input duration, driving the RES and MRES pins High starts the CPU performing reset exception processing. (3) Exiting Sleep Mode by STBY Pin 998 When the STBY pin level is driven low, a transition is made to hardware standby mode. 24.5 24.5.1 Module Stop Mode Module Stop Mode Module stop mode can be set for individual on-chip supporting modules. When the corresponding MSTP bit in MSTPCR is set to 1, module operation stops at the end of the bus cycle and a transition is made to module stop mode. The CPU continues operating independently. Table 24-4 shows MSTP bits and the corresponding on-chip supporting modules. When the corresponding MSTP bit is cleared to 0, module stop mode is cleared and the module starts operating at the end of the bus cycle. In module stop mode, the internal states of modules other than the SCI, A/D converter and 14-bit PWM* are retained. After reset clearance, all modules other than DMAC* and DTC* are in module stop mode. When an on-chip supporting module is in module stop mode, read/write access to its registers is disabled. Note: * This function is not available in the H8S/2695. 999 Table 24-4 MSTP Bits and Corresponding On-Chip Supporting Modules Register MSTPCRA Bit MSTPA7 MSTPA6 MSTPA5 MSTPA4 MSTPA3 MSTPA2 MSTPA1 MSTPA0 MSTPCRB MSTPB7 MSTPB6 MSTPB5 MSTPB4 MSTPB3 MSTPB2 MSTPB1 MSTPB0* 1 MSTPCRC MSTPC7 MSTPC6 MSTPC5 MSTPC4 MSTPC3*1 MSTPC2* MSTPC1* 1 1 Module DMA controller (DMAC)*2 Data transfer controller (DTC)*2 16-bit timer pulse unit (TPU) 8-bit timer (TMR0, TMR1)*2 Programmable pulse generator (PPG) * 2 D/A converter (channels 0, 1)* 2 A/D converter 8-bit timer (TMR2, TMR3)*2 Serial communication interface 0 (SCI0) Serial communication interface 1 (SCI1) Serial communication interface 2 (SCI2) I 2C bus interface 0 (IIC0)* 2 I 2C bus interface 1 (IIC1)* 2 14-bit PWM timer (PWM0)* 2 14-bit PWM timer (PWM1)* 2 -- Serial communication interface 3 (SCI3) Serial communication interface 4 (SCI4) D/A converter (channels 2, 3)* 2 PC break controller (PBC)* 2 -- -- -- -- MSTPC0*1 Notes: *1 Write 1 to bit MSTPB0 and bits MTSPC3 to MSTPC0. *2 This function is not available in the H8S/2695. 1000 24.5.2 Usage Notes DMAC and DTC Module Stop (DMAC and DTC functions are not available in the H8S/2695): Depending on the operating status of the DMAC and DTC, the MSTPA7 and MSTPA6 bits may not be set to 1. Setting of the DMAC or DTC module stop mode should be carried out only when the respective module is not activated. For details, refer to section 8, DMA Controller (DMAC) and section 9, Data Transfer Controller (DTC). On-Chip Supporting Module Interrupt: Relevant interrupt operations cannot be performed in module stop mode. Consequently, if module stop mode is entered when an interrupt has been requested, it will not be possible to clear the CPU interrupt source or the DMAC and DTC activation source. Interrupts should therefore be disabled before entering module stop mode. Writing to MSTPCR: MSTPCR should only be written to by the CPU. Reading I/O Ports in Subactive Mode: When operating in the subactive mode, reading the status of the I/O port pins, except for ports D and E, always returns a 1. Use of these pins as output ports is possible. The procedure for detecting the status of the I/O port pins in the subactive mode is as follows. (1) Use ports D and E a input ports. (2) Use external interrupt inputs (IRQ0 to IRQ7). 24.6 24.6.1 Software Standby Mode Software Standby Mode A transition is made to software standby mode when the SLEEP instruction is executed when the SBYCR SSBY bit = 1 and the LPWRCR LSON bit = 0, and the TCSR (WDT1) PSS bit = 0. In this mode, the CPU, on-chip supporting modules, and oscillator all stop. However, the contents of the CPU's internal registers, RAM data, and the states of on-chip supporting modules other than the SCI, A/D converter, and 14-bit PWM, and I/O ports, are retained. Whether the address bus and bus control signals are placed in the high-impedance state. In this mode the oscillator stops, and therefore power dissipation is significantly reduced. 24.6.2 Exiting Software Standby Mode Software standby mode is cleared by an external interrupt (NMI pin, or pins IRQ0 to IRQ7), or by means of the RES pin, MRES pin or STBY pin. 1001 (1) Exiting Software Standby Mode with an Interrupt When an NMI or IRQ0 to IRQ7 interrupt request signal is input, clock oscillation starts, and after the elapse of the time set in bits STS2 to STS0 in SBYCR, stable clocks are supplied to the entire chip, software standby mode is exited, and interrupt exception handling is started. When exiting software standby mode with an IRQ0 to IRQ7 interrupt, set the corresponding enable bit to 1 and ensure that no interrupt with a higher priority than interrupts IRQ0 to IRQ7 is generated. Software standby mode cannot be exited if the interrupt has been masked on the CPU side or has been designated as a DTC activation source. (2) Exiting Software Standby Mode by RES or MRES Pins When the RES pin or MRES pin is driven low, clock oscillation is started. At the same time as clock oscillation starts, clocks are supplied to the entire chip. Note that the RES pin or MRES pin must be held low until clock oscillation stabilizes. When the RES pin or MRES pin goes high, the CPU begins reset exception handling. (3) Exiting Software Standby Mode by STBY Pin When the STBY pin is driven low, a transition is made to hardware standby mode. 24.6.3 Setting Oscillation Stabilization Time after Clearing Software Standby Mode Bits STS2 to STS0 in SBYCR should be set as described below. Using a Crystal Oscillator: Set bits STS2 to STS0 so that the standby time is at least 8 ms (the oscillation stabilization time). Table 24-5 shows the standby times for different operating frequencies and settings of bits STS2 to STS0. 1002 Table 24-5 Oscillation Stabilization Time Settings Standby STS2 STS1 STS0 Time 0 0 0 1 1 0 1 1 0 0 1 1 0 1 8192 states 16384 states 32768 states 65536 states 131072 states 262144 states 25 20 16 12 10 8 6 4 2 MHz MHz MHz MHz MHz MHz MHz MHz MHz Unit 0.32 0.41 0.65 0.82 1.3 2.6 5.2 10.4 1.6 3.3 6.6 0.51 1.0 2.0 4.1 8.2 0.65 1.3 2.7 5.5 10.9 21.8 -- 1.3 0.8 1.6 3.3 6.6 1.0 2.0 4.1 8.2 1.3 2.7 5.5 2.0 4.1 8.2 4.1 8.2 16.4 32.8 65.5 131.2 -- 8.0 s ms 10.9 16.4 21.8 43.6 -- 1.7 32.8 65.6 -- 4.0 13.1 16.4 26.2 32.8 -- 1.6 -- 2.0 13.1 16.4 -- 0.8 -- 1.0 Reserved -- 16 states 0.6 (Setting prohibited) : Recommended time setting Using an External Clock: The PLL circuit requires a time for stabilization. Insert a wait of 2 ms min. 24.6.4 Software Standby Mode Application Example Figure 24-3 shows an example in which a transition is made to software standby mode at the falling edge on the NMI pin, and software standby mode is cleared at the rising edge on the NMI pin. In this example, an NMI interrupt is accepted with the NMIEG bit in SYSCR cleared to 0 (falling edge specification), then the NMIEG bit is set to 1 (rising edge specification), the SSBY bit is set to 1, and a SLEEP instruction is executed, causing a transition to software standby mode. Software standby mode is then cleared at the rising edge on the NMI pin. 1003 Oscillator o NMI NMIEG SSBY NMI exception Software standby mode handling (power-down mode) NMIEG=1 SSBY=1 SLEEP instruction Oscillation stabilization time tOSC2 NMI exception handling Figure 24-3 Software Standby Mode Application Example 24.6.5 Usage Notes I/O Port Status: In software standby mode, I/O port states are retained. If the OPE bit is set to 1, the address bus and bus control signal output is also retained. Therefore, there is no reduction in current dissipation for the output current when a high-level signal is output. Current Dissipation during Oscillation Stabilization Wait Period: Current dissipation increases during the oscillation stabilization wait period. Write Data Buffer Function: The write data buffer function and software standby mode cannot be used at the same time. When the write data buffer function is used, the WDBE bit in BCRL should be cleared to 0 to cancel the write data buffer function before entering software standby mode. Also check that external writes have finished, by reading external addresses, etc., before executing a SLEEP instruction to enter software standby mode. See section 7.9, Write Data Buffer Function, for details of the write data buffer function. 1004 24.7 24.7.1 Hardware Standby Mode Hardware Standby Mode When the STBY pin is driven low, a transition is made to hardware standby mode from any mode. In hardware standby mode, all functions enter the reset state and stop operation, resulting in a significant reduction in power dissipation. As long as the prescribed voltage is supplied, on-chip RAM data is retained. I/O ports are set to the high-impedance state. In order to retain on-chip RAM data, the RAME bit in SYSCR should be cleared to 0 before driving the STBY pin low. Do not change the state of the mode pins (MD2 to MD0) while the H8S/2633 Series is in hardware standby mode. Hardware standby mode is cleared by means of the STBY pin and the RES pin. When the STBY pin is driven high while the RES pin is low, the reset state is set and clock oscillation is started. Ensure that the RES pin is held low until the clock oscillator stabilizes (at least 8 ms--the oscillation stabilization time--when using a crystal oscillator). When the RES pin is subsequently driven high, a transition is made to the program execution state via the reset exception handling state. 24.7.2 Hardware Standby Mode Timing Figure 24-4 shows an example of hardware standby mode timing. When the STBY pin is driven low after the RES pin has been driven low, a transition is made to hardware standby mode. Hardware standby mode is cleared by driving the STBY pin high, waiting for the oscillation stabilization time, then changing the RES pin from low to high. Oscillator RES STBY Oscillation stabilization time Reset exception handling Figure 24-4 Hardware Standby Mode Timing 1005 24.8 24.8.1 Watch Mode (This function is not available in the H8S/2695) Watch Mode CPU operation makes a transition to watch mode when the SLEEP instruction is executed in highspeed mode or sub-active mode with SBYCR SSBY=1, LPWRCR DTON = 0, and TCSR (WDT1) PSS = 1. In watch mode, the CPU is stopped and supporting modules other than WDT1 are also stopped. The contents of the CPU's internal registers, the data in internal RAM, and the statuses of the internal supporting modules (excluding the SCI, ADC, and 14-bit PWM) and I/O ports are retained. 24.8.2 Exiting Watch Mode Watch mode is exited by any interrupt (WOVI1 interrupt, NMI pin, or IRQ0 to IRQ7), or signals at the RES, MRES, or STBY pins. (1) Exiting Watch Mode by Interrupts When an interrupt occurs, watch mode is exited and a transition is made to high-speed mode or medium-speed mode when the LPWRCR LSON bit = 0 or to sub-active mode when the LSON bit = 1. When a transition is made to high-speed mode, a stable clock is supplied to all LSI circuits and interrupt exception processing starts after the time set in SBYCR STS2 to STS0 has elapsed. In the case of IRQ0 to IRQ7 interrupts, no transition is made from watch mode if the corresponding enable bit has been cleared to 0, and, in the case of interrupts from the internal supporting modules, the interrupt enable register has been set to disable the reception of that interrupt, or is masked by the CPU. See section 24.6.3, Setting Oscillation Stabilization Time after Clearing Software Standby Mode for how to set the oscillation stabilization time when making a transition from watch mode to high-speed mode. (2) Exiting Watch Mode by RES or MRES Pins For exiting watch mode by the RES or MRES pins, see (2), Exiting Software Standby Mode by RES or MRES pins in section 24.6.2, Exiting Software Standby Mode. (3) Exiting Watch Mode by STBY Pin When the STBY pin level is driven low, a transition is made to hardware standby mode. 1006 24.8.3 Notes (1) I/O Port Status The status of the I/O ports is retained in watch mode. Also, when the OPE bit is set to 1, the address bus and bus control signals continue to be output. Therefore, when a High level is output, the current consumption is not diminished by the amount of current to support the High level output. (2) Current Consumption when Waiting for Oscillation Stabilization The current consumption increases during stabilization of oscillation. (3) DMAC/DTC activation and sub-active mode/watch mode transition When a transition is made to sub-active mode or watch mode, make a module stop setting for the DMAC/DTC (write 1 to the corresponding bit in MSTPCR), then read 1 from that bit for confirmation, before making the mode transition. When exiting the module stop state (by writing 0 to the corresponding bit in MSTPCR), first make a transition from sub-active mode to active mode. If a DMAC/DTC activation source occurs in sub-active mode, the DMAC/DTC is activated when the module stop state is exited after a transition is made to active mode. (4) Interrupt sources and sub-active mode/watch mode transition For on-chip peripheral modules that stop operating in sub-active mode (DMAC, DTC, TPU, FRT, TMRX, TMRY, timer connection, I 2C), a corresponding interrupt cannot be cleared in sub-active mode. Therefore, CPU interrupt source clearance cannot be effected if a transition is made to subactive mode when an interrupt has been requested. Interrupts for these modules should be disabled before executing a SLEEP instruction and making a transition to sub-active mode or watch mode. 24.9 24.9.1 Sub-Sleep Mode (This function is not available in the H8S/2695) Sub-Sleep Mode When the SLEEP instruction is executed with the SBYCR SSBY bit = 0, LPWRCR LSON bit = 1, and TCSR (WDT1) PSS bit = 1, CPU operation shifts to sub-sleep mode. In sub-sleep mode, the CPU is stopped. Supporting modules other than TMR0 to TMR3, WDT0, and WDT1 are also stopped. The contents of the CPU's internal registers, the data in internal RAM, and the statuses of the internal supporting modules (excluding the SCI, ADC, and 14-bit PWM) and I/O ports are retained. 1007 24.9.2 Exiting Sub-Sleep Mode Sub-sleep mode is exited by an interrupt (interrupts from internal supporting modules, NMI pin, or IRQ0 to IRQ7), or signals at the RES, MRES, or STBY pins. (1) Exiting Sub-Sleep Mode by Interrupts When an interrupt occurs, sub-sleep mode is exited and interrupt exception processing starts. In the case of IRQ0 to IRQ7 interrupts, sub-sleep mode is not cancelled if the corresponding enable bit has been cleared to 0, and, in the case of interrupts from the internal supporting modules, the interrupt enable register has been set to disable the reception of that interrupt, or is masked by the CPU. (2) Exiting Sub-Sleep Mode by RES or MRES Pins For exiting sub-sleep mode by the RES or MRES pins, see (2), Exiting Software Standby Mode by RES or MRES pins in section 24.6.2, Exiting Software Standby Mode. (3) Exiting Sub-Sleep Mode by STBY Pin When the STBY pin level is driven low, a transition is made to hardware standby mode. 24.10 24.10.1 Sub-Active Mode (This function is not available in the H8S/2695) Sub-Active Mode When the SLEEP instruction is executed in high-speed mode with the SBYCR SSBY bit = 1, LPWRCR DTON bit = 1, LSON bit = 1, and TCSR (WDT1) PSS bit = 1, CPU operation shifts to sub-active mode. When an interrupt occurs in watch mode, and if the LSON bit of LPWRCR is 1, a transition is made to sub-active mode. And if an interrupt occurs in sub-sleep mode, a transition is made to sub-active mode. In sub-active mode, the CPU operates at low speed on the subclock, and the program is executed step by step. Supporting modules other than TMR0 to TMR3, WDT0, and WDT1 are also stopped. When operating the CPU in sub-active mode, the SCKCR SCK2 to SCK0 bits must be set to 0. 24.10.2 Exiting Sub-Active Mode Sub-active mode is exited by the SLEEP instruction or the RES, MRES, or STBY pins. 1008 (1) Exiting Sub-Active Mode by SLEEP Instruction When the SLEEP instruction is executed with the SBYCR SSBY bit = 1, LPWRCR DTON bit = 0, and TCSR (WDT1) PSS bit = 1, the CPU exits sub-active mode and a transition is made to watch mode. When the SLEEP instruction is executed with the SBYCR SSBY bit = 0, LPWRCR LSON bit = 1, and TCSR (WDT1) PSS bit = 1, a transition is made to sub-sleep mode. Finally, when the SLEEP instruction is executed with the SBYCR SSBY bit = 1, LPWRCR DTON bit = 1, LSON bit = 0, and TCSR (WDT1) PSS bit = 1, a direct transition is made to high-speed mode (SCK0 to SCK2 all 0). See section 24.11, Direct Transitions for details of direct transitions. (2) Exiting Sub-Active Mode by RES or MRES Pins For exiting sub-active mode by the RES or MRES pins, see (2), Exiting Software Standby Mode by RES or MRES pins in section 24.6.2, Exiting Software Standby Mode. (3) Exiting Sub-Active Mode by STBY Pin When the STBY pin level is driven Low, a transition is made to hardware standby mode. 24.10.3 Usage Notes (1) DMAC/DTC activation and sub-active mode/watch mode transition When a transition is made to sub-active mode or watch mode, make a module stop setting for the DMAC/DTC (write 1 to the corresponding bit in MSTPCR), then read 1 from that bit for confirmation, before making the mode transition. When exiting the module stop state (by writing 0 to the corresponding bit in MSTPCR), first make a transition from sub-active mode to active mode. If a DMAC/DTC activation source occurs in sub-active mode, the DMAC/DTC is activated when the module stop state is exited after a transition is made to active mode. (2) Interrupt sources and sub-active mode/watch mode transition For on-chip peripheral modules that stop operating in sub-active mode (DMAC, DTC, TPU, FRT, TMRX, TMRY, timer connection, IIC), a corresponding interrupt cannot be cleared in sub-active mode. Therefore, CPU interrupt source clearance cannot be effected if a transition is made to subactive mode when an interrupt has been requested. Interrupts for these modules should be disabled before executing a SLEEP instruction and making a transition to sub-active mode or watch mode. 1009 24.11 24.11.1 Direct Transitions (This function is not available in the H8S/2695) Overview of Direct Transitions There are three modes, high-speed, medium-speed, and sub-active, in which the CPU executes programs. When a direct transition is made, there is no interruption of program execution when shifting between high-speed and sub-active modes. Direct transitions are enabled by setting the LPWRCR DTON bit to 1, then executing the SLEEP instruction. After a transition, direct transition interrupt exception processing starts. (1) Direct Transitions from High-Speed Mode to Sub-Active Mode Execute the SLEEP instruction in high-speed mode when the SBYCR SSBY bit = 1, LPWRCR LSON bit = 1, and DTON bit = 1, and TSCR (WDT1) PSS bit = 1 to make a transition to subactive mode. (2) Direct Transitions from Sub-Active Mode to High-Speed Mode Execute the SLEEP instruction in sub-active mode when the SBYCR SSBY bit = 1, LPWRCR LSON bit = 0, and DTON bit = 1, and TSCR (WDT1) PSS bit = 1 to make a direct transition to high-speed mode after the time set in SBYCR STS2 to STS0 has elapsed. 24.12 o Clock Output Disabling Function Output of the o clock can be controlled by means of the PSTOP bit in SCKCR, and DDR for the corresponding port. When the PSTOP bit is set to 1, the o clock stops at the end of the bus cycle, and o output goes high. o clock output is enabled when the PSTOP bit is cleared to 0. When DDR for the corresponding port is cleared to 0, o clock output is disabled and input port mode is set. Table 24-6 shows the state of the o pin in each processing state. Table 24-6 o Pin State in Each Processing State DDR PSTOP Hardware standby mode Software standby mode, watch mode * , and direct transition * Sleep mode and subsleep mode* High-speed mode, medium-speed mode, and subactive mode* 0 -- High impedance High impedance High impedance High impedance 1 0 High impedance Fixed high o output o output 1 1 High impedance Fixed high Fixed high Fixed high Note: * This function is not available in the H8S/2695. 1010 Section 25 Electrical Characteristics (H8S/2633, H8S/2632, H8S/2631, H8S/2633F) 25.1 Absolute Maximum Ratings Table 25-1 lists the absolute maximum ratings. Unless specified otherwise, PVCC refers to both PVCC1 and PVCC2. Table 25-1 Absolute Maximum Ratings Item Power supply voltage Symbol VCC PLLVCC PVCC1,2 Input voltage (XTAL, EXTAL, OSC1, OSC2) Input voltage (ports 4 and 9) Input voltage (except XTAL, EXTAL, OSC1, OSC2, ports 4 and 9) Reference voltage Analog power supply voltage Analog input voltage Operating temperature Vin Vin Vin -0.3 to +7.0 -0.3 to VCC +0.3 -0.3 to AVCC +0.3 -0.3 to PVCC +0.3 V V V V Value -0.3 to +4.3 Unit V Vref AVCC VAN Topr -0.3 to AVCC +0.3 -0.3 to +7.0 -0.3 to AVCC +0.3 Regular specifications: -20 to +75 Wide-range specifications: -40 to +85 V V V C C C Storage temperature Tstg -55 to +125 Caution: Permanent damage to the chip may result if absolute maximum rating are exceeded. 1011 25.2 DC Characteristics Table 25-2 lists the DC characteristics. Table 25-3 lists the permissible output currents. Table 25-2 DC Characteristics (1) Conditions: VCC = PLLVCC = 3.0 V to 3.6 V, PV CC = 4.5 V to 5.5 V, AVCC = 4.5 V to 5.5 V, Vref = 4.5 V to AVCC, VSS = AVSS = PLLV SS = 0 V, Ta = -20C to +75C (regular specifications), Ta = -40C to +85C (wide-range specifications)*1 Item Schmitt trigger input voltage Input high voltage Symbol IRQ7 to IRQ0 VT- VT+ VT - VT RES, STBY, NMI, FWE*5, MD2 to MD0 EXTAL, OSC1 Ports 1, 3, 7, A to G Ports 4 and 9 Input low voltage RES, STBY, NMI, FWE*5, MD2 to MD0 EXTAL, OSC1 Ports 1, 3, 4, 7, 9, A to G Output high voltage All output pins VOH except P34 and P35 P34, P35 All output pins except P34 and P35 Output low voltage Input leakage current All output pins VOL RES, FWE* 5 STBY, NMI, MD2 to MD0 Ports 4, 9 | Iin | VIL VIH + - Min 1.0 -- 0.4 Typ -- -- -- Max -- -- Unit V V Test Conditions PVCC x 0.7 V PVCC + 0.3 V PVCC - 0.7 -- VCC x 0.8 -- 2.2 -- VCC + 0.3 V PVCC + 0.3 V AVCC + 0.3 V 0.5 V AVCC x 0.7 -- -0.3 -- -0.3 -0.3 -- -- VCC x 0.2 0.8 -- V V V I OH = -200 A PVCC -0.5 -- PVCC -2.5 -- 3.5 -- -- -- V V I OH = -100 A I OH = -1 mA -- -- -- -- -- -- -- -- 0.4 1.0 1.0 1.0 V A A A I OL = 1.6 mA Vin = 0.5 V to PVCC - 0.5 V Vin = 0.5 V to AVCC - 0.5 V 1012 Item Three-state leakage current (off state) Ports 1, 3, 7, A to G Symbol ITSI Min -- Typ -- Max 1.0 Unit A Test Conditions Vin = 0.5 V to PVCC - 0.5 V MOS input Ports A to E pull-up current Input capacitance RES NMI All input pins except RES and NMI Current dissipation* 2 Normal operation Sleep mode All modules stopped -I P Cin 50 -- -- -- -- -- -- -- 300 30 30 15 A pF pF pF Vin = 0 V Vin = 0 V f = 1 MHz Ta = 25C I CC* 4 -- -- -- 72 85 mA VCC = 3.3 V VCC = 3.6 V 58 75 mA VCC = 3.3 V VCC = 3.6 V 50 -- mA f = 25 MHz f = 25 MHz f = 25 MHz, VCC = 3.3 V (reference values) f = 25 MHz, VCC = 3.3 V (reference values) Using 32.768 kHz crystal resonator Using 32.768 kHz crystal resonator Using 32.768 kHz crystal resonator Ta 50C 50C < Ta Medium-speed mode (o/32) -- 40 -- mA Subactive mode Subsleep mode Watch mode -- 120 200 VCC = 3.0 V Ta = 25 C 70 150 VCC = 3.0 V Ta = 25 C 20 50 VCC = 3.0 V Ta = 25 C 1.0 -- 5.0 20 A -- A -- A Standby mode -- -- A 1013 Item Port power supply current* 2 Operating Subclock operation Standby Watch mode Analog During A/D power supply and D/A current conversion Idle Reference During A/D power supply and D/A current conversion Idle RAM standby voltage* 3 Symbol PI CC Min -- -- -- -- Typ Max Unit mA A Test Conditions 17 25 PVCC = 5.0 V -- 0.01 -- 0.6 50 5.0 20 2.0 Ta 50 C 50 C < Ta mA AVCC = 5.0 V AlCC -- -- AlCC -- 0.01 Ta = 25 C 4.0 5.0 5.0 A mA Vref = 5.0 V -- VRAM 2.0 0.01 Ta = 25 C -- 5.0 -- A V Notes: *1 If the A/D and D/A converters are not used, do not leave the AVCC, Vref, and AV SS pins open. Apply a voltage between 3.3 V and 5.5 V to the AV CC and Vref pins by connecting them to PV CC, for instance. Set Vref AVCC. *2 Current dissipation values are for V IH = VCC (EXTAL, OSC1), AVCC (ports 4 and 9), or PVCC (other), and VIL = 0 V, with all output pins unloaded and the on-chip MOS pull-up transistors in the off state. *3 The values are for VRAM VCC < 3.0 V, VIH min = VCC - 0.1 V, and VIL max = 0.1 V. *4 I CC depends on VCC and f as follows: I CC max = 1.0 (mA) + 0.93 (mA/(MHz x V)) x V CC x f (normal operation) I CC max = 1.0 (mA) + 0.77 (mA/(MHz x V)) x V CC x f (sleep mode) *5 The FWE pin is used only in the flash memory version. 1014 Table 25-2 DC Characteristics (2) Conditions: VCC = PLLVCC = 3.0 V to 3.6 V, PV CC = 3.0 V to 5.5 V, AVCC = 3.6 V to 5.5 V*7, Vref = 3.6 V to AVCC*8, VSS = AVSS = PLLV SS = 0 V, Ta = -20C to +75C (regular specifications), Ta = -40C to +85C (wide-range specifications)*1 Item Schmitt trigger input voltage Input high voltage Symbol IRQ7 to IRQ0 VT - Min PVCC x 0.2 -- PVCC x 0.9 Typ -- -- -- Max -- -- Unit V V Test Conditions VT+ VT+ - VT- RES, STBY, FWE* 6, NMI, MD2 to MD0 EXTAL, OSC1 Ports 1, 3, 7, A to G Ports 4 and 9 VIH PVCC x 0.7 V PVCC + 0.3 V PVCC x 0.05 -- VCC x 0.8 PVCC x 0.8 AVCC x 0.8 VIL -0.3 -- -- -- -- VCC + 0.3 V PVCC + 0.3 V AVCC + 0.3 V PVCC x 0.1 V Input low voltage RES, STBY, NMI, FWE*6, MD2 to MD0 EXTAL, OSC1 Ports 1, 3, 7, A to G Ports 4 and 9 -0.3 -0.3 -0.3 PVCC -0.5 -- -- -- -- VCC x 0.2 V PVCC x 0.2 V AVCC x 0.2 V -- V I OH = -200 A Output high voltage All output pins VOH except P34 and P35 P34, P35 All output pins except P34 and P35 PVCC -2.5 PVCC -1.0 -- -- -- -- I OH = -100 A* 2 I OH = -1mA Output low voltage Input leakage current All output pins VOL RES, FWE* 6 STBY, NMI, MD2 to MD0 Ports 4, 9 | Iin | -- -- -- -- -- -- -- -- 0.4 1.0 1.0 1.0 V A A A I OL = 1.6 mA Vin = 0.5 V to PVCC - 0.5 V Vin = 0.5 V to AVCC - 0.5 V 1015 Item Three-state leakage current (off state) Ports 1, 3, 7, A to G Symbol Min ITSI -- Typ -- Max 1.0 Unit A Test Conditions Vin = 0.5 V to PVCC - 0.5 V MOS input Ports A to E pull-up current Input capacitance RES NMI All input pins except RES and NMI Current dissipation* 3 Normal operation Sleep mode All modules stopped Medium-speed mode (o/32) Subactive mode Subsleep mode Watch mode -I P Cin 25 -- -- -- -- -- -- -- 300 30 30 15 A pF pF pF Vin = 0 V Vin = 0 V f = 1 MHz Ta = 25C I CC* 5 -- -- -- 40 60 mA VCC = 3.3 V VCC = 3.6 V 35 45 mA VCC = 3.3 V VCC = 3.6 V 30 -- mA f = 16 MHz f = 16 MHz f = 16 MHz, VCC = 3.3 V (reference values) f = 16 MHz, VCC = 3.3 V (reference values) Using 32.768 kHz crystal resonator Using 32.768 kHz crystal resonator Using 32.768 kHz crystal resonator Ta 50C 50C < Ta -- 25 -- mA -- 120 200 VCC = 3.0 V T a = 25 C 70 150 VCC = 3.0 V T a = 25 C 20 50 VCC = 3.0 V Ta = 25 C 0.01 -- 5.0 20 A -- A -- A Standby mode -- -- A 1016 Item Port power supply current* 3 Operating Subclock operation Standby Watch mode Symbol Min PI CC -- -- -- -- -- Typ Max Unit mA A Test Conditions 10 16 PVCC = 5.0 V -- 0.01 -- 0.6 50 5.0 20 2.0 Ta 50C 50 C < Ta mA VCC = 5.0 V Analog During A/D AlCC power supply and D/A current conversions Idle Reference current During A/D AlCC and D/A conversions Idle RAM standby voltage * 4 VRAM -- -- 0.01 Ta = 25 C 4.0 5.0 5.0 A mA AVref = 5.0 V -- 2.0 0.01 Ta = 25 C -- 5.0 -- A V Notes: *1 If the A/D and D/A converters are not used, do not leave the AVCC, Vref , and AV SS pins open. Apply a voltage between 3.3 V to 5.5 V to the AVCC and Vref pins by connecting them to PV CC, for instance. Set Vref AVCC. *2 When using P34 and P35 as output pins, set PVCC = 3.3 V to 5.5 V. *3 Current dissipation values are for V IH = VCC (EXTAL, OSC1), AVCC (ports 4 and 9), or PVCC (other), and VIL = 0 V, with all output pins unloaded and the on-chip MOS pull-up transistors in the off state. *4 The values are for VRAM VCC < 3.0 V, VIH min = VCC - 0.1 V, and VIL max = 0.1 V. *5 I CC depends on VCC and f as follows: I CC max = 1.0 (mA) + 0.93 (mA/(MHz x V)) x V CC x f (normal operation) I CC max = 1.0 (mA) + 0.77 (mA/(MHz x V)) x V CC x f (sleep mode) *6 The FWE pin is used only in the flash memory version. *7 AVCC = 3.3 V to 5.5 V if the A/D and D/A converters are not used (used as I/O ports). *8 Vref = 3.3 V to AVCC if the A/D and D/A converters are not used (used as I/O ports). 1017 Table 25-3 Permissible Output Currents Conditions: VCC = PLLVCC = 3.0 V to 3.6 V, PV CC = 3.0 V to 5.5 V, AVCC = 3.6 V to 5.5 V*1, Vref = 3.6 V to AVCC*2, VSS = AVSS = PLLV SS = 0 V, Ta = -20C to +75C (regular specifications), Ta = -40C to +85C (wide-range specifications) Item Permissible output low current (per pin) Permissible output low current (total) All output pins Total of all output pins PVCC = 3.0 V to 5.5 V PVCC = 3.0 V to 5.5 V PVCC = 3.0 V to 5.5 V PVCC = 3.0 V to 5.5 V Symbol Min I OL IOL -I OH -IOH -- -- -- -- Typ -- -- -- -- Max 10 120 2.0 40 Unit mA mA mA mA Permissible output All output high current (per pin) pins Permissible output high current (total) Total of all output pins Notes: To protect chip reliability, do not exceed the output current values in table 25-3. *1 AVCC = 3.3 V to 5.5 V if A/D and D/A not used (pins used as I/O ports). *2 Vref = 3.3 V to AVCC if A/D and D/A not used (pins used as I/O ports). 1018 Table 25-4 Condition : Bus Drive Characteristics VCC = PLLVCC = 3.0 V to 3.6 V, PV CC = 3.0 V to 5.5 V, AVCC = 3.3 V to 5.5 V, Vref = 3.3 V to AVCC, VSS = AVSS = PLLV SS = 0 V, Ta = -20C to +75C (regular specifications), Ta = -40C to +85C (wide-range specifications) Applicable Pins: SCL1-0, SDA1-0 Item Schmitt trigger input voltage Symbol VTVT+ VT+ - VTMin PVCC x 0.3 -- 0.4 0.2 Input high voltage VIH Input low voltage VIL PVCC x 0.7 - 0.5 -- -- -- Input capacitance Cin Three-state leakage current (off state) ITSI -- -- Typ -- -- -- -- -- -- -- -- -- -- -- Max -- PVCC x 0.7 -- -- PVCC + 0.5 PVCC x 0.3 0.7 0.4 0.4 20 1.0 V V V I OL = 8 mA, PVCC = 4.5 V to 5.5 V I OL = 3 mA, PVCC = 4.5 V to 5.5 V I OL = 1.6 mA, PVCC = 3.0 V to 5.5 V pF Vin = 0V, f = 1MHz, Ta = 25C A Vin = 0.5 V to VCC - 0.5V PVCC = 4.5 V to 5.5V PVCC = 3.0 V to 4.5V Unit Test Conditions V Output low voltage VOL SCL, SDA, output t Of fall time 20 + 0.1 Cb -- 250 ns 1019 25.3 AC Characteristics Figure 25-1 show, the test conditions for the AC characteristics. 5V RL LSI output pin C RH C = 50 pF: Ports 10 to 13, 70 to 73, A to G (In case of expansion bus control signal output pin setting) C = 30 pF: All ports RL = 2.4 k RH = 12 k Input/output timing measurement levels * Low level : 0.8 V * High level : 2.0 V Figure 25-1 Output Load Circuit 1020 25.3.1 Clock Timing Table 25-5 lists the clock timing Table 25-5 Clock Timing Condition A: VCC = PLLVCC = 3.0 V to 3.6 V, PV CC = 3.0 V to 5.5 V, AVCC = 3.6 V to 5.5 V*1, Vref = 3.6 V to AVCC*2, VSS = AVSS = PLLV SS = 0 V, o = 32.768 kHz, 2 to 16 MHz, Ta = -20C to +75C (regular specifications), Ta = -40C to +85C (wide-range specifications) Condition B: VCC = PLLVCC = 3.0 V to 3.6 V, PV CC = 4.5 V to 5.5 V, AVCC = 4.5 V to 5.5 V, Vref = 4.5 V to AVCC, VSS = AVSS = PLLV SS = 0 V, o = 32.768 kHz, 2 to 25 MHz, Ta = -20C to +75C (regular specifications), Ta = -40C to +85C (wide-range specifications) Condition A 16MHz Item Clock cycle time Clock high pulse width Clock low pulse width Clock rise time Clock fall time Clock oscillator settling time at reset (crystal) Clock oscillator settling time in software standby (crystal) External clock output stabilization delay time 32 kHz clock oscillation settling time Sub clock oscillator frequency Symbol t cyc t CH t CL t Cr t Cf t OSC1 t OSC2 Min 62.5 18 18 -- -- 10 8 Max 500 -- -- 12 12 -- -- Min 40 15 15 -- -- 20 10 Condition B 25MHz Max 500 -- -- 5 5 -- -- Unit ns ns ns ns ns ms ms Figure 25-3 Figure 24-3 Test Conditions Figure 25-2 t DEXT t OSC3 f SUB 2 -- 32.768 30.5 -- 2 2 -- 32.768 30.5 -- 2 ms s kHz s Figure 25-3 Sub clock (oSUB) cycle time t SUB Notes: *1 AVCC = 3.3 V to 5.5 V if A/D and D/A not used (pins used as I/O ports). *2 Vref = 3.3 V to AVCC if A/D and D/A not used (pins used as I/O ports). 1021 tcyc tCH o tCL tCr tCf Figure 25-2 System Clock Timing EXTAL tDEXT VCC tDEXT STBY tOSC1 RES tOSC1 o Figure 25-3 Oscillator Settling Timing 1022 25.3.2 Control Signal Timing Table 25-6 lists the control signal timing. Table 25-6 Control Signal Timing Condition A: VCC = PLLVCC = 3.0 V to 3.6 V, PV CC = 3.0 V to 5.5 V, AVCC = 3.6 V to 5.5 V*1, Vref = 3.6 V to AVCC*2, VSS = AVSS = PLLV SS = 0 V, o = 32.768 kHz, 2 to 16 MHz, Ta = -20C to +75C (regular specifications), Ta = -40C to +85C (wide-range specifications) Condition B: VCC = PLLVCC = 3.0 V to 3.6 V, PV CC = 4.5 V to 5.5 V, AVCC = 4.5 V to 5.5 V, Vref = 4.5 V to AVCC, VSS = AVSS = PLLV SS = 0 V, o = 32.768 kHz, 2 to 25 MHz, Ta = -20C to +75C (regular specifications), Ta = -40C to +85C (wide-range specifications) Condition A Item RES setup time RES pulse width MRES setup time MRES pulse width NMI setup time NMI hold time NMI pulse width (exiting software standby mode) IRQ setup time IRQ hold time IRQ pulse width (exiting software standby mode) Symbol t RESS t RESW t MRESS t MRESW t NMIS t NMIH t NMIW t IRQS t IRQH t IRQW Min 200 20 250 20 250 10 200 250 10 200 Max -- -- -- -- -- -- -- -- -- -- Condition B Min 200 20 250 20 150 10 200 150 10 200 Max -- -- -- -- -- -- -- -- -- -- ns ns ns ns Unit ns t cyc ns t cyc ns Figure 25-5 Test Conditions Figure 25-4 Notes: *1 AVCC = 3.3 V to 5.5 V if A/D and D/A not used (pins used as I/O ports). *2 Vref = 3.3 V to AVCC if A/D and D/A not used (pins used as I/O ports). 1023 o tRESS RES tRESW tRESS tMRESS tMRESS MRES tMRESW Figure 25-4 Reset Input Timing o tNMIS NMI tNMIW tNMIH IRQ tIRQW tIRQS IRQ Edge input tIRQS IRQ Level input tIRQH Figure 25-5 Interrupt Input Timing 1024 25.3.3 Bus Timing Table 25-7 lists the bus timing. Table 25-7 Bus Timing Condition A: VCC = PLLVCC = 3.0 V to 3.6 V, PV CC = 3.0 V to 5.5 V, AVCC = 3.6 V to 5.5 V*1, Vref = 3.6 V to AVCC*2, VSS = AVSS = PLLV SS = 0 V, o = 2 to 16 MHz, Ta = -20C to +75C (regular specifications), T a = -40C to +85C (wide-range specifications) Condition B: VCC = PLLVCC = 3.0 V to 3.6 V, PV CC = 4.5 V to 5.5 V, AVCC = 4.5 V to 5.5 V, Vref = 4.5 V to AVCC, VSS = AVSS = PLLV SS = 0 V, o = 2 to 25 MHz, Ta = -20C to +75C (regular specifications), Ta = -40C to +85C (wide-range specifications) Condition A Item Address delay time Address setup time Address hold time CS delay time 1 CS delay time 2 AS delay time RD delay time 1 RD delay time 2 Read data setup time Read data hold time Read data access time1 Read data access time2 Read data access time3 Read data access time 4 Symbol t AD t AS t AH t CSD1 t CSD2 t ASD t RSD1 t RSD2 t RDS t RDH t ACC1 t ACC2 t ACC3 t ACC4 Min -- Max 30 -- Condition B Min Max 20 Unit ns ns ns ns ns ns ns ns ns ns ns ns ns ns Test Conditions Figure 25-6 to figure 25-11 -- 0.5 x t cyc - 30 -- 0.5 x t cyc - 20 -- -- -- -- -- 30 0 -- -- -- -- 30 30 30 30 30 -- -- 1.0 x t cyc - 35 1.5 x t cyc - 35 2.0 x t cyc - 35 2.5 x t cyc - 35 -- 0.5 x t cyc - 15 0.5 x t cyc - 8 -- -- -- -- -- 15 0 -- -- -- -- -- 20 18 18 18 18 -- -- 1.0 x t cyc - 25 1.5 x t cyc - 25 2.0 x t cyc - 25 2.5 x t cyc - 25 1025 Condition A Item Read data access time 5 WR delay time 1 WR delay time 2 WR pulse width 1 WR pulse width 2 Symbol t ACC5 t WRD1 t WRD2 t WSW1 t WSW2 Min -- -- -- 1.0 x t cyc - 30 1.5 x t cyc - 30 -- 0.5 x t cyc - 27 0.5 x t cyc - 20 0.5 x t cyc - 15 0.5 x t cyc - 15 1.5 x t cyc - 30 1.0 x t cyc - 20 0.5 x t cyc - 20 -- -- -- -- 0.5 x t cyc - 25 40 10 60 -- -- -- Max 3.0 x t cyc - 35 30 30 -- -- 30 -- -- -- -- -- -- -- 30 30 30 30 -- -- -- -- 30 60 40 -- -- -- Condition B Min Max Unit ns 3.0 x t cyc - 25 18 18 ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns Test Conditions Figure 25-6 to figure 25-11 1.0 x -- t cyc - 15 1.5 x -- t cyc - 15 -- 22 0.5 x -- t cyc - 15 0.5 x t cyc - 8 -- Write data delay time t WDD Write data setup time t WDS Write data hold time WR setup time WR hold time RAS precharge time t WDH t WCS t WCH t PCH 0.5 x -- t cyc - 10 0.5 x -- t cyc - 10 1.5 x -- t cyc - 15 1.0 x t cyc - 8 0.5 x t cyc - 8 -- -- -- -- 0.5 x t cyc - 8 25 5 30 -- -- -- -- -- 20 18 18 18 -- -- -- -- 15 40 25 Figure 25-11 to figure 25-13 CAS precharge time1 t CP1 CAS precharge time2 t CP2 CAS delay time1 CAS delay time2 OE delay time1 OE delay time2 CAS setup time WAIT setup time WAIT hold time BREQ setup time BACK delay time Bus-floating time BREQO delay time t CASD1 t CASD2 t OED1 t OED2 t CSR t WTS t WTH t BRQS t BACD t BZD t BRQOD Figure 25-8 Figure 25-14 Figure 25-15 Notes: *1 AVCC = 3.3 V to 5.5 V if A/D and D/A not used (pins used as I/O ports). *2 Vref = 3.3 V to AVCC if A/D and D/A not used (pins used as I/O ports). 1026 T1 T2 o tAD A23 to A0 tCSD1 CS7 to CS0 tAS tAH tASD AS tASD tRSD1 RD (read) tACC2 tRSD2 tAS tACC3 tRDS tRDH D15 to D0 (read) tWRD2 WR (write) tAS tWDD D15 to D0 (write) tWSW1 tWRD2 tAH tWDH Figure 25-6 Basic Bus Timing (Two-State Access) 1027 T1 T2 T3 o tAD A23 to A0 tCSD1 CS7 to CS0 tASD AS tASD tAS tAH tRSD1 RD (read) tACC4 tRSD2 tAS tACC5 tRDS tRDH D15 to D0 (read) tWRD1 WR (write) tWDD tWDS D15 to D0 (write) tWSW2 tWRD2 tAH tWDH Figure 25-7 Basic Bus Timing (Three-State Access) 1028 T1 T2 TW T3 o A23 to A0 CS7 to CS0 AS RD (read) D15 to D0 (read) WR (write) D15 to D0 (write) tWTS tWTH WAIT tWTS tWTH Figure 25-8 Basic Bus Timing (Three-State Access with One Wait State) 1029 T1 T2 or T3 T1 T2 o tAD A23 to A0 tAS tAH CS7 to CS0 tASD AS tASD tRSD2 RD (read) tACC3 D15 to D0 (read) tRDS tRDH Figure 25-9 Burst ROM Access Timing (Two-State Access) 1030 T1 o T2 or T3 T1 tAD A23 to A0 CS7 to CS0 AS tRSD2 RD (read) tACC1 D15 to D0 (read) tRDS tRDH Figure 25-10 Burst ROM Access Timing (One-State Access) 1031 Tp Tr TC1 TC2 o tAD A23 to A0 tPCH CS5 to CS2 (RAS) tCSD2 CAL, LCAS (RCTS=0) tCASD2 CAL to LCAS (When RCTS is set to 1) (read) OE (When OES is set to 1) (read) tACC3 D15 to D0 (read) tWRD1 HWR, LWR (write) tWDD D15 to D0 (write) tWRD1 tRDS tRDH tACC2 tCASD1 tCP2 tCASD1 tACC1 tCASD1 tCP1 tAS tAH tACC4 tCSD tAD tOED2 tACC2 tOED1 tWCS tWDS tWCH tWDH Figure 25-11 DRAM Access Timing TRp TRr TRC1 TRC2 o tCSD2 tCSD1 CS5 to CS2 (RAS) tCASD1 tCSR tCASD1 CAS, LCAS Figure 25-12 DRAM CBR Refresh Timing 1032 TRp TRr TRC TRC o tCSD2 CS5 to CS2 (RAS) tCASD1 CAS, LCAS tCSD2 tCSR tCASD1 Figure 25-13 DRAM Self-Refresh Timing o tBRQS BREQ tBRQS tBACD BACK tBZD A23 to A0 CS7 to CS0, AS, RD, HWR, LWR tBACD tBZD Figure 25-14 External Bus Release Timing o tBRQOD BREQO tBRQOD Figure 25-15 External Bus Request Output Timing 1033 25.3.4 DMAC Timing Table 25-8 shows the DMAC timing. Table 25-8 DMAC Timing Condition A: VCC = PLLVCC = 3.0 V to 3.6 V, PV CC = 3.0 V to 5.5 V, AVCC = 3.6 V to 5.5 V*1, Vref = 3.6 V to AVCC*2, VSS = AVSS = PLLV SS = 0 V, o = 2 to 16 MHz, Ta = -20C to +75C (regular specifications), T a = -40C to +85C (wide-range specifications) Condition B: VCC = PLLVCC = 3.0 V to 3.6 V, PV CC = 4.5 V to 5.5 V, AVCC = 4.5 V to 5.5 V, Vref = 4.5 V to AVCC, VSS = AVSS = PLLV SS = 0 V, o = 2 to 25 MHz, Ta = -20C to +75C (regular specifications), Ta = -40C to +85C (wide-range specifications) Condition A Item DREQ setup time DREQ hold time TEND delay time DACK delay time1 DACK delay time2 Symbol t DRQS t DRQH t TED t DACD1 t DACD2 Min 40 10 -- -- -- Max -- -- 30 30 30 Condition B Min 25 10 -- -- -- Max -- -- 20 18 18 ns Figure 25-18 Figure 25-16, figure 25-17 Unit ns Test Conditions Figure 25-19 Notes: *1 AVCC = 3.3 V to 5.5 V if A/D and D/A not used (pins used as I/O ports). *2 Vref = 3.3 V to AVCC if A/D and D/A not used (pins used as I/O ports). 1034 T1 T2 o A23 to A0 CS7 to CS0 AS RD (read) D15 to D0 (read) HWR to LWR D15 to D0 (write) tDACD1 DACK0, DACK1 tDACD2 Figure 25-16 DMAC Single Address Transfer Timing / Two-State Access 1035 T1 T2 T2 o A23 to A0 CS7 to CS0 AS RD (read) D15 to D0 (read) HWR to LWR D15 to D0 (write) tDACD1 DACK0, DACK1 tDACD2 Figure 25-17 DMAC Single Address Transfer Timing / Three-State Access T1 T2 or T3 o tTED tTED TEND0, TEND1 Figure 25-18 DMAC TEND Output Timing 1036 o tDRQS tDRQH DREQ0, DREQ1 Figure 25-19 DMAC DREQ Input Timing 1037 25.3.5 Timing of On-Chip Supporting Modules Table 25-9 lists the timing of on-chip supporting modules. Table 25-9 Timing of On-Chip Supporting Modules Condition A: VCC = PLLVCC = 3.0 V to 3.6 V, PV CC = 3.0 V to 5.5 V, AVCC = 3.6 V to 5.5 V*1, Vref = 3.6 V to AVCC*2, VSS = AVSS = PLLV SS = 0 V, o = 32.768 kHz *3, 2 to 16 MHz, Ta = -20C to +75C (regular specifications), Ta = -40C to +85C (wide-range specifications) Condition B: VCC = PLLVCC = 3.0 V to 3.6 V, PV CC = 4.5 V to 5.5 V, AVCC = 4.5 V to 5.5 V, Vref = 4.5 V to AVCC, VSS = AVSS = PLLV SS = 0 V, o = 32.768 kHz* 3, 2 to 25 MHz, Ta = -20C to +75C (regular specifications), Ta = -40C to +85C (wide-range specifications) Condition A Item I/O port Output data delay time Input data setup time Input data hold time PPG TPU Symbol t PWD t PRS t PRH Min -- 40 40 -- -- 40 40 1.5 2.5 Max 60 -- -- 60 60 -- -- -- -- Condition B Min -- 25 25 -- -- 25 25 1.5 2.5 Max 40 -- -- 40 40 -- -- -- -- ns t cyc Figure 25-23 ns ns Figure 25-21 Figure 25-22 Unit ns Test Conditions Figure 25-20 Pulse output delay t POD time Timer output delay time Timer input setup time Timer clock input setup time Timer clock pulse width Single edge Both edges t TOCD t TICS t TCKS t TCKWH t TCKWL 1038 Condition A Item TMR Symbol Timer output delay t TMOD time Timer reset input setup time Timer clock input setup time Timer clock pulse width WDT0 WDT1 PWM SCI Single edge Both edges t TMRS t TMCS t TMCWH t TMCWL t WOVD t BUZD Min -- 40 40 1.5 2.5 -- -- -- 4 6 t SCKW t SCKr t SCKf t TXD 0.4 -- -- -- 60 60 60 Max 60 -- -- -- -- 60 60 60 -- -- 0.6 1.5 1.5 60 -- -- -- Condition B Min -- 25 25 1.5 2.5 -- -- -- 4 6 0.4 -- -- -- 40 40 40 Max 40 -- -- -- -- 40 40 40 -- -- 0.6 1.5 1.5 40 -- -- -- ns Figure 25-32 ns Figure 25-31 t Scyc t cyc ns ns ns t cyc Figure 25-27 Figure 25-28 Figure 25-29 Figure 25-30 Unit ns ns ns t cyc Test Conditions Figure 25-24 Figure 25-26 Figure 25-25 Overflow output delay time Buzz output delay time Pulse output delay t PWOD time Input clock cycle Asynchro- t Scyc nous Synchronous Input clock pulse width Input clock rise time Input clock fall time Transmit data delay time Receive data setup t RXS time (synchronous) Receive data hold t RXH time (synchronous) A/D Trigger input setup t TRGS converter time Notes: *1 AVCC = 3.3 V to 5.5 V if A/D and D/A not used (pins used as I/O ports). *2 Vref = 3.3 V to AVCC if A/D and D/A not used (pins used as I/O ports). *3 Only available I/O port, TMR, WDT0, and WDT1. 1039 T1 o T2 tPRS Ports 1, 3, 4, 7, 9, A to G (read) tPRH tPWD Ports 1, 3, 7, A to G (write) Figure 25-20 I/O Port Input/Output Timing o tPOD PO 15 to 8 Figure 25-21 PPG Output Timing o tTOCD Output compare output* tTICS Input capture input* Note: * TIOCA0 to TIOCA5, TIOCB0 to TIOCB5, TIOCC0, TIOCC3, TIOCD0, TIOCD3 Figure 25-22 TPU Input/Output Timing 1040 o tTCKS TCLKA to TCLKD tTCKWL tTCKWH tTCKS Figure 25-23 TPU Clock Input Timing o tTMOD TMO0, TMO1 TMO2, TMO3 Figure 25-24 8-bit Timer Output Timing o tTMCS TMCI01, TMCI23 tTMCWL tTMCWH tTMCS Figure 25-25 8-bit Timer Clock Input Timing o tTMRS TMRI01, TMRI23 Figure 25-26 8-bit Timer Reset Input Timing 1041 o tWOVD WDTOVF tWOVD Figure 25-27 WDT0 Output Timing o tBUZD BUZZ tBUZD Figure 25-28 WDT1 Output Timing o tPWOD PWM3 to PWM0 Figure 25-29 PWM Output Timing tSCKW SCK0 to SCK4 tScyc tSCKr tSCKf Figure 25-30 SCK Clock Input Timing 1042 SCK0 to SCK4 tTXD TxD0 to TxD4 (transit data) tRXS RxD0 to RxD4 (receive data) tRXH Figure 25-31 SCI Input/Output Timing (Clock Synchronous Mode) o tTRGS ADTRG Figure 25-32 A/D Converter External Trigger Input Timing 1043 Table 25-10 I2C Bus Timing Conditions: VCC = PLLVCC = 3.0 V to 3.6 V, PV CC = 3.0 V to 5.5 V, VSS = AVSS = PLLV SS = 0 V, o = 5 MHz to maximum operating frequency, Ta = -20C to +75C (regular specifications), Ta = -40C to +85C (wide-range specifications) Ratings Item SCL input cycle time SCL input high pulse width SCL input low pulse width SCL, SDA input rise time SCL, SDA input fall time SCL, SDA input spike pulse elimination time SDA input bus free time Start condition input hold time Symbol t SCL t SCLH t SCLL t Sr t Sf t SP t BUF t STAH Min 12t cyc 3t cyc 5t cyc -- -- -- 5t cyc 3t cyc 3t cyc 3t cyc 0.5tcyc 0 -- Typ -- -- -- -- -- -- -- -- -- -- -- -- -- Max -- -- -- Unit ns ns ns Notes Figure 25-33 7.5tcyc * ns 300 1t cyc -- -- -- -- -- -- 400 ns ns ns ns ns ns ns ns pF Retransmission start condition input t STAS setup time Stop condition input setup time Data input setup time Data input hold time SCL, SDA capacitive load t STOS t SDAS t SDAH Cb Note: * 17.5tcyc can be set according to the clock selected for use by the I 2C module. For details, see section 18.4, Usage Notes. 1044 VIH SDA0 to SDA1 tBUF tSTAH VIL tSCLH tSTAS tSP tSTOS SCL0 to SCL1 P* S* tSf tSCLL tSCL tSr tSDAH Sr* tSDAS Note: * S, P, and Sr indicate the following conditions. S: Start condition P: Stop condition Sr: Retransmission start condition Figure 25-33 I 2C Bus Inteface Input/Output Timing (Option) 1045 25.4 A/D Conversion Characteristics Table 25-11 lists the A/D conversion characteristics. Table 25-11 A/D Conversion Characteristics Condition A: VCC = PLLVCC = 3.0 V to 3.6 V, PV CC = 3.0 V to 5.5 V, AVCC = 3.6 V to 5.5 V, Vref = 3.6 V to AVCC if A/D and D/A used, AVCC = 3.3 V to 5.5 V, Vref = 3.3 V to AVCC if A/D and D/A not used (pins used as I/O ports), VSS = AVSS = PLLV SS = 0 V, o = 2 to 16 MHz, Ta = -20C to +75C (regular specifications), T a = -40C to +85C (wide-range specifications) Condition B: VCC = PLLVCC = 3.0 V to 3.6 V, PV CC = 4.5 V to 5.5 V, AVCC = 4.5 V to 5.5 V, Vref = 4.5 V to AVCC, VSS = AVSS = PLLV SS = 0 V, o = 2 to 25 MHz, Ta = -20C to +75C (regular specifications), Ta = -40C to +85C (wide-range specifications) Condition A Item Resolution Conversion time Analog input capacitance Permissible signal-source impedance Nonlinearity error Offset error Full-scale error Quantization Absolute accuracy Min 10 16 -- -- -- -- -- -- -- Typ 10 -- -- -- -- -- -- 0.5 -- Max 10 -- 20 5 7.5 7.5 7.5 -- 8.0 Min 10 10 -- -- -- -- -- -- -- Condition B Typ 10 -- -- -- -- -- -- 0.5 -- Max 10 -- 20 5 3.5 3.5 3.5 -- 4.0 Unit bits s pF k LSB LSB LSB LSB LSB 1046 25.5 D/A Conversion Characteristics Table 25-12 shows the D/A conversion characteristics. Table 25-12 D/A Conversion Characteristics Condition A: VCC = PLLVCC = 3.0 V to 3.6 V, PV CC = 3.0 V to 5.5 V, AVCC = 3.6 V to 5.5 V, Vref = 3.6 V to AVCC if A/D and D/A used, AVCC = 3.3 V to 5.5 V, Vref = 3.3 V to AVCC if A/D and D/A not used (pins used as I/O ports), VSS = AVSS = PLLV SS = 0 V, o = 2 to 16 MHz, Ta = -20C to +75C (regular specifications), T a = -40C to +85C (wide-range specifications) Condition B: VCC = PLLVCC = 3.0 V to 3.6 V, PV CC = 4.5 V to 5.5 V, AVCC = 4.5 V to 5.5 V, Vref = 4.5 V to AVCC, VSS = AVSS = PLLV SS = 0 V, o = 2 to 25 MHz, Ta = -20C to +75C (regular specifications), Ta = -40C to +85C (wide-range specifications) Condition A Item Resolution Conversion time Absolute accuracy Min 8 -- -- -- Typ 8 -- 2.0 -- Max 8 10 3.0 2.0 Condition B Min 8 -- -- -- Typ 8 -- Max 8 10 Unit bits s 20-pF capacitive load 2-M resistive load 4-M resistive load Test Conditions 1.5 2.0 LSB -- 1.5 LSB 1047 25.6 Flash Memory Characteristics Table 25-13 Flash Memory Characteristics Conditions: VCC = PLLVCC = 3.0 V to 3.6 V, PV CC = 4.5 V to 5.5 V, AVCC = 4.5 V to 5.5 V, VSS = AVSS = PLLV SS = 0 V, Ta = -20C to +75C (regular specifications), Ta = - 40C to +85C (wide-range specifications) Item Programming time* * * Erase time* * * 1 3 5 1 2 4 Symbol Min tP tE NWEC 1 Typ 10 100 50 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Max 200 1000 100 -- -- 30 10 200 -- -- -- -- -- 6 994 -- -- -- 10 -- -- -- -- -- 100 Unit ms/128 bytes ms/block Times s s s s s s s s s s Times Times s s s ms s s s s s Times -- -- -- 1 50 -- -- -- 5 5 4 2 2 -- -- 100 1 100 -- 10 10 6 2 4 -- Number of rewrites Programming Wait time after SWE1 bit setting* Wait time after PSU1 bit setting* Wait time after P1 bit setting* * 1 4 x0 y z0 z1 z2 1 1 Wait time after P1 bit clearing* 1 Wait time after PSU1 bit clearing* Wait time after PV1 bit setting* 1 1 Wait time after H'FF dummy write* Wait time after PV1 bit clearing* Maximum number of writes* * 1 4 1 N1 N2 Common Erasing Wait time after SWE1 bit clearing* Wait time after SWE1 bit setting* Wait time after ESU1 bit setting* Wait time after E1 bit setting* * Wait time after E1 bit clearing* 1 1 1 1 x1 x y z 1 5 Wait time after ESU1 bit clearing* Wait time after EV1 bit setting* 1 1 Wait time after H'FF dummy write* Wait time after EV1 bit clearing* Maximum number of erases* * 1 5 1 1 N Notes: *1 Follow the program/erase algorithms when making the time settings. *2 Programming time per 128 bytes. (Indicates the total time during which the P1 bit is set in flash memory control register 1 (FLMCR1). Does not include the program-verify time.) 1048 *3 Time to erase one block. (Indicates the time during which the E1 bit is set in FLMCR1. Does not include the erase-verify time.) *4 Maximum programming time (tP(max) = Wait time after P1 bit setting (z) x maximum number of writes (N)) (z0 + z1) x 6 + z2 x 994 *5 Maximum erase time (tE(max) = Wait time after E1 bit setting (z) x maximum number of erases (N)) 25.7 Usage Note Although both the F-ZTAT and mask ROM versions fully meet the electrical specifications listed in this manual, due to differences in the fabrication process, the on-chip ROM, and the layout patterns, there will be differences in the actual values of the electrical characteristics, the operating margins, the noise margins, and other aspects. Therefore, if a system is evaluated using the F-ZTAT version, a similar evaluation should also be performed using the mask ROM version. 1049 1050 Section 26 Electrical Characteristics (H8S/2633R) 26.1 Absolute Maximum Ratings Table 26-1 lists the absolute maximum ratings. Unless specified otherwise, PVCC refers to both PVCC1 and PVCC2. Table 26-1 Absolute Maximum Ratings Item Power supply voltage Input voltage (XTAL, EXTAL) Input voltage (ports 4 and 9) Input voltage (except XTAL, EXTAL, ports 4 and 9) Reference voltage Analog power supply voltage Analog input voltage Operating temperature Symbol PVCC1,2 Vin Vin Vin Vref AVCC VAN Topr Value -0.3 to +7.0 -0.3 to PVCC +0.3 -0.3 to AVCC +0.3 -0.3 to PVCC +0.3 -0.3 to AVCC +0.3 -0.3 to +7.0 -0.3 to AVCC +0.3 Regular specifications: -20 to +75 Wide-range specifications: -40 to +85 Storage temperature Tstg -55 to +125 Unit V V V V V V V C C C Caution: Permanent damage to the chip may result if absolute maximum rating are exceeded. 1051 26.2 DC Characteristics Table 26-2 lists the DC characteristics. Table 26-3 lists the permissible output currents. Table 26-2 DC Characteristics Conditions: PVCC = 4.5 V to 5.5 V, AVCC = 4.5 V to 5.5 V, Vref = 4.5 V to AVCC, VSS = AVSS = PLLV SS = 0 V, Ta = -20C to +75C (regular specifications), Ta = -40C to +85C (wide-range specifications)*1 Item Schmitt trigger input voltage Input high voltage Symbol IRQ7 to IRQ0 VT - Min 1.0 -- 0.4 Typ -- -- -- Max -- -- Unit V V Test Conditions VT+ VT+ - VT- RES, STBY, NMI, FWE*5, MD2 to MD0 Ports 1, 3, 7, A to G Ports 4 and 9 EXTAL VIH PVCC x 0.7 V PVCC + 0.3 V PVCC - 0.7 -- 2.2 -- PVCC + 0.3 V AVCC + 0.3 V PVCC + 0.3 V 0.5 V AVCC x 0.7 -- PVCC x 0.8 -- VIL -0.3 -- Input low voltage RES, STBY, NMI, FWE*5, MD2 to MD0 Ports 1, 3, 4, 7, 9, A to G EXTAL -0.3 -0.3 -- -- 0.8 V PVCC x 0.2 V -- V I OH = -200 A Output high voltage All output pins VOH except P34 and P35 P34, P35 All output pins except P34 and P35 PVCC -0.5 -- PVCC -2.5 -- 3.5 -- -- -- I OH = -100 A I OH = -1 mA Output low voltage Input leakage current All output pins VOL RES, FWE* 5 STBY, NMI, MD2 to MD0 Ports 4, 9 | Iin | -- -- -- -- -- -- -- -- 0.4 1.0 1.0 1.0 V A A A I OL = 1.6 mA Vin = 0.5 V to PVCC - 0.5 V Vin = 0.5 V to AVCC - 0.5 V 1052 Item Three-state leakage current (off state) Ports 1, 3, 7, A to G Symbol ITSI Min -- Typ -- Max 1.0 Unit A Test Conditions Vin = 0.5 V to PVCC - 0.5 V MOS input Ports A to E pull-up current Input capacitance RES NMI All input pins except RES and NMI Current dissipation* 2 Normal operation Sleep mode All modules stopped Medium-speed mode (o/32) Subactive mode Subsleep mode Watch mode -I P Cin 50 -- -- -- -- -- -- -- 300 30 30 15 A pF pF pF Vin = 0 V Vin = 0 V f = 1 MHz Ta = 25C I CC* 4 -- -- -- 70 55 40 84 77 -- mA mA mA f = 28 MHz f = 28 MHz f = 28 MHz (reference values) f = 28 MHz (reference values) Using 32.768 kHz crystal resonator Using 32.768 kHz crystal resonator Using 32.768 kHz crystal resonator Ta 50C 50C < Ta -- 54 -- mA -- 120 200 A -- 70 150 A -- 20 50 A Standby mode -- -- 0.1 -- 5.0 20 A 1053 Item Analog During A/D power supply and D/A current conversion Idle Reference During A/D power supply and D/A current conversion Idle RAM standby voltage * 3 Symbol AlCC Min -- Typ 0.6 Max 2.0 Unit mA Test Conditions AVCC = 5.0 V -- AlCC -- 0.1 Ta = 25C 4.0 5.0 5.0 A mA Vref = 5.0 V -- VRAM 2.0 0.1 Ta = 25C -- 5.0 -- A V Notes: *1 If the A/D and D/A converters are not used, do not leave the AVCC, Vref, and AV SS pins open. Apply a voltage between 3.3 V and 5.5 V to the AV CC and Vref pins by connecting them to PV CC, for instance. Set Vref AVCC. *2 Current dissipation values are for V IH = PVCC (EXTAL), AVCC (ports 4 and 9), or PVCC (other), and VIL = 0 V, with all output pins unloaded and the on-chip MOS pull-up transistors in the off state. *3 The values are for VRAM PVCC < 3.0 V, VIH min = PVCC - 0.1 V, and VIL max = 0.1 V. *4 I CC depends on PVCC and f as follows: I CC max = 15 (mA) + 0.45 (mA/(MHz x V)) x PV CC x f (normal operation) I CC max = 15 (mA) + 0.4 (mA/(MHz x V)) x PV CC x f (sleep mode) *5 The FWE pin is used only in the flash memory version. 1054 Table 26-3 Permissible Output Currents Conditions: PVCC = 4.5 V to 5.5 V, AVCC = 4.5 V to 5.5 V, Vref = 4.5 V to AVCC, VSS = AVSS = PLLV SS = 0 V, Ta = -20C to +75C (regular specifications), Ta = -40C to +85C (wide-range specifications) Item Permissible output low current (per pin) Permissible output low current (total) All output pins Total of all output pins PVCC = 4.5 V to 5.5 V PVCC = 4.5 V to 5.5 V PVCC = 4.5 V to 5.5 V PVCC = 4.5 V to 5.5 V Symbol Min I OL IOL -I OH -IOH -- -- -- -- Typ -- -- -- -- Max 10 120 2.0 40 Unit mA mA mA mA Permissible output All output high current (per pin) pins Permissible output high current (total) Total of all output pins Note: To protect chip reliability, do not exceed the output current values in table 26-3. 1055 Table 26-4 Condition : Bus Drive Characteristics PVCC = 4.5 V to 5.5 V, AVCC = 4.5 V to 5.5 V, Vref = 4.5 V to AVCC, VSS = AVSS = PLLV SS = 0 V, Ta = -20C to +75C (regular specifications), Ta = -40C to +85C (wide-range specifications) Applicable Pins: SCL1-0, SDA1-0 Item Schmitt trigger input voltage Symbol VTVT+ VT+ - VTInput high voltage VIH Input low voltage VIL Min PVCC x 0.3 -- 0.4 PVCC x 0.7 - 0.5 -- -- Input capacitance Cin Three-state leakage current (off state) ITSI -- -- Typ -- -- -- -- -- -- -- -- -- Max -- PVCC x 0.7 -- PVCC + 0.5 PVCC x 0.3 0.7 0.4 20 1.0 pF A V V V I OL = 8 mA, PVCC = 4.5 V to 5.5 V I OL = 3 mA, PVCC = 4.5 V to 5.5 V Vin = 0V, f = 1MHz, Ta = 25C Vin = 0.5 V to PVCC - 0.5 V PVCC = 4.5 V to 5.5V Unit V Test Conditions Output low voltage VOL SCL, SDA, output t Of fall time 20 + 0.1 Cb -- 250 ns 1056 26.3 AC Characteristics Figure 26-1 show, the test conditions for the AC characteristics. 5V RL LSI output pin C RH C = 50 pF: Ports 10 to 13, 70 to 73, A to G (In case of expansion bus control signal output pin setting) C = 30 pF: All ports RL = 2.4 k RH = 12 k Input/output timing measurement levels * Low level : 0.8 V * High level : 2.0 V Figure 26-1 Output Load Circuit 1057 26.3.1 Clock Timing Table 26-5 lists the clock timing Table 26-5 Clock Timing Condition: PVCC = 4.5 V to 5.5 V, AVCC = 4.5 V to 5.5 V, Vref = 4.5 V to AVCC, VSS = AVSS = PLLV SS = 0 V, o = 32.768 kHz, 2 to 28 MHz*, Ta = -20C to +75C (regular specifications), Ta = -40C to +85C (wide-range specifications) 28MHz Item Clock cycle time Clock high pulse width Clock low pulse width Clock rise time Clock fall time Clock oscillator settling time at reset (crystal) Clock oscillator settling time in software standby (crystal) External clock output stabilization delay time 32 kHz clock oscillation settling time Sub clock oscillator frequency Sub clock (oSUB) cycle time Symbol t cyc t CH t CL t Cr t Cf t OSC1 t OSC2 t DEXT t OSC3 f SUB t SUB Min 35.7 10 10 -- -- 10 5 2 -- 32.768 30.5 Max 500 -- -- 5 5 -- -- -- 2 Unit ns ns ns ns ns ms ms ms s s Figure 26-3 Figure 24-3 Figure 26-3 Test Conditions Figure 26-2 32.768 kHz 30.5 Note: * The input clock frequency should be set to 25 MHz or less. If o = 25 MHz to 28 MHz, use the PLL to multiply the frequency (x2 or x4). 1058 tcyc tCH o tCL tCr tCf Figure 26-2 System Clock Timing EXTAL tDEXT VCC tDEXT STBY tOSC1 RES tOSC1 o Figure 26-3 Oscillator Settling Timing 1059 26.3.2 Control Signal Timing Table 26-6 lists the control signal timing. Table 26-6 Control Signal Timing Condition: PVCC = 4.5 V to 5.5 V, AVCC = 4.5 V to 5.5 V, Vref = 4.5 V to AVCC, VSS = AVSS = PLLV SS = 0 V, o = 32.768 kHz, 2 to 28 MHz, Ta = -20C to +75C (regular specifications), Ta = -40C to +85C (wide-range specifications) Symbol t RESS t RESW t MRESS t MRESW t NMIS t NMIH t NMIW t IRQS t IRQH t IRQW Min 200 20 250 20 150 10 200 150 10 200 Max -- -- -- -- -- -- -- -- -- -- ns ns ns ns Unit ns t cyc ns t cyc ns Figure 26-5 Test Conditions Figure 26-4 Item RES setup time RES pulse width MRES setup time MRES pulse width NMI setup time NMI hold time NMI pulse width (exiting software standby mode) IRQ setup time IRQ hold time IRQ pulse width (exiting software standby mode) 1060 o tRESS RES tRESW tRESS tMRESS tMRESS MRES tMRESW Figure 26-4 Reset Input Timing o tNMIS NMI tNMIW tNMIH IRQ tIRQW tIRQS IRQ Edge input tIRQS IRQ Level input tIRQH Figure 26-5 Interrupt Input Timing 1061 26.3.3 Bus Timing Table 26-7 lists the bus timing. Table 26-7 Bus Timing Condition: PVCC = 4.5 V to 5.5 V, AVCC = 4.5 V to 5.5 V, Vref = 4.5 V to AVCC, VSS = AVSS = PLLV SS = 0 V, o = 2 to 28 MHz, Ta = -20C to +75C (regular specifications), Ta = -40C to +85C (wide-range specifications) Symbol t AD t AS t AH t CSD1 t CSD2 t ASD t RSD1 t RSD2 t RDS t RDH t ACC1 t ACC2 t ACC3 t ACC4 t ACC5 t WRD1 t WRD2 t WSW1 t WSW2 t WDD t WDS t WDH t WCS t WCH Min -- 0.5 x tcyc - 13 0.5 x tcyc - 8 -- -- -- -- -- 15 0 -- -- -- -- -- -- -- 1.0 x t cyc - 13 1.5 x t cyc - 13 -- 0.5 x t cyc - 13 0.5 x t cyc - 8 0.5 x t cyc - 10 0.5 x t cyc - 10 Max 20 -- -- 15 15 15 15 15 -- -- 1.0 x t cyc - 15 1.5 x t cyc - 15 2.0 x t cyc - 15 2.5 x t cyc - 15 3.0 x t cyc - 15 15 15 -- -- 22 -- -- -- -- Unit ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns Test Conditions Figure 26-6 to figure 26-11 Item Address delay time Address setup time Address hold time CS delay time 1 CS delay time 2 AS delay time RD delay time 1 RD delay time 2 Read data setup time Read data hold time Read data access time 1 Read data access time 2 Read data access time 3 Read data access time 4 Read data access time 5 WR delay time 1 WR delay time 2 WR pulse width 1 WR pulse width 2 Write data delay time Write data setup time Write data hold time WR setup time WR hold time 1062 Item RAS precharge time CAS precharge time 1 CAS precharge time 2 CAS delay time 1 CAS delay time 2 OE delay time 1 OE delay time 2 CAS setup time WAIT setup time WAIT hold time BREQ setup time BACK delay time Bus-floating time BREQO delay time Symbol t PCH t CP1 t CP2 t CASD1 t CASD2 t OED1 t OED2 t CSR t WTS t WTH t BRQS t BACD t BZD t BRQOD Min 1.5 x t cyc - 13 1.0 x t cyc - 8 0.5 x t cyc - 8 -- -- -- -- 0.5 x t cyc - 8 25 5 30 -- -- -- Max -- -- -- 18 18 15 15 -- -- -- -- 15 40 25 Unit ns ns ns ns ns ns ns ns ns ns ns ns ns ns Conditions Figure 26-11 to figure 26-13 Figure 26-8 Figure 26-14 Figure 26-15 1063 T1 T2 o tAD A23 to A0 tCSD1 CS7 to CS0 tAS tAH tASD AS tASD tRSD1 RD (read) tACC2 tRSD2 tAS tACC3 tRDS tRDH D15 to D0 (read) tWRD2 WR (write) tAS tWDD D15 to D0 (write) tWSW1 tWRD2 tAH tWDH Figure 26-6 Basic Bus Timing (Two-State Access) 1064 T1 T2 T3 o tAD A23 to A0 tCSD1 CS7 to CS0 tASD AS tASD tAS tAH tRSD1 RD (read) tACC4 tRSD2 tAS tACC5 tRDS tRDH D15 to D0 (read) tWRD1 WR (write) tWDD tWDS D15 to D0 (write) tWSW2 tWRD2 tAH tWDH Figure 26-7 Basic Bus Timing (Three-State Access) 1065 T1 T2 TW T3 o A23 to A0 CS7 to CS0 AS RD (read) D15 to D0 (read) WR (write) D15 to D0 (write) tWTS tWTH WAIT tWTS tWTH Figure 26-8 Basic Bus Timing (Three-State Access with One Wait State) 1066 T1 T2 or T3 T1 T2 o tAD A23 to A0 tAS tAH CS7 to CS0 tASD AS tASD tRSD2 RD (read) tACC3 D15 to D0 (read) tRDS tRDH Figure 26-9 Burst ROM Access Timing (Two-State Access) 1067 T1 o T2 or T3 T1 tAD A23 to A0 CS7 to CS0 AS tRSD2 RD (read) tACC1 D15 to D0 (read) tRDS tRDH Figure 26-10 Burst ROM Access Timing (One-State Access) 1068 Tp Tr TC1 TC2 o tAD A23 to A0 tPCH CS5 to CS2 (RAS) tCSD2 CAL, LCAS (RCTS=0) tCASD2 CAL to LCAS (When RCTS is set to 1) (read) OE (When OES is set to 1) (read) tACC3 D15 to D0 (read) tWRD1 HWR, LWR (write) tWDD D15 to D0 (write) tWRD1 tRDS tRDH tACC2 tCASD1 tCP2 tCASD1 tACC1 tCASD1 tCP1 tAS tAH tACC4 tCSD tAD tOED2 tACC2 tOED1 tWCS tWDS tWCH tWDH Figure 26-11 DRAM Access Timing TRp TRr TRC1 TRC2 o tCSD2 tCSD1 CS5 to CS2 (RAS) tCASD1 tCSR tCASD1 CAS, LCAS Figure 26-12 DRAM CBR Refresh Timing 1069 TRp TRr TRC TRC o tCSD2 CS5 to CS2 (RAS) tCASD1 CAS, LCAS tCSD2 tCSR tCASD1 Figure 26-13 DRAM Self-Refresh Timing o tBRQS BREQ tBRQS tBACD BACK tBZD A23 to A0 CS7 to CS0, AS, RD, HWR, LWR tBACD tBZD Figure 26-14 External Bus Release Timing o tBRQOD BREQO tBRQOD Figure 26-15 External Bus Request Output Timing 1070 26.3.4 DMAC Timing Table 26-8 shows the DMAC timing. Table 26-8 DMAC Timing Condition: PVCC = 4.5 V to 5.5 V, AVCC = 4.5 V to 5.5 V, Vref = 4.5 V to AVCC, VSS = AVSS = PLLV SS = 0 V, o = 2 to 28 MHz, Ta = -20C to +75C (regular specifications), Ta = -40C to +85C (wide-range specifications) Symbol t DRQS t DRQH t TED t DACD1 t DACD2 Min 25 10 -- -- -- Max -- -- 18 18 18 ns Figure 26-18 Figure 26-16, figure 26-17 Unit ns Test Conditions Figure 26-19 Item DREQ setup time DREQ hold time TEND delay time DACK delay time1 DACK delay time2 1071 T1 T2 o A23 to A0 CS7 to CS0 AS RD (read) D15 to D0 (read) HWR to LWR D15 to D0 (write) tDACD1 DACK0, DACK1 tDACD2 Figure 26-16 DMAC Single Address Transfer Timing / Two-State Access 1072 T1 T2 T2 o A23 to A0 CS7 to CS0 AS RD (read) D15 to D0 (read) HWR to LWR D15 to D0 (write) tDACD1 DACK0, DACK1 tDACD2 Figure 26-17 DMAC Single Address Transfer Timing / Three-State Access T1 T2 or T3 o tTED tTED TEND0, TEND1 Figure 26-18 DMAC TEND Output Timing 1073 o tDRQS tDRQH DREQ0, DREQ1 Figure 26-19 DMAC DREQ Input Timing 1074 26.3.5 Timing of On-Chip Supporting Modules Table 26-9 lists the timing of on-chip supporting modules. Table 26-9 Timing of On-Chip Supporting Modules Condition: PVCC = 4.5 V to 5.5 V, AVCC = 4.5 V to 5.5 V, Vref = 4.5 V to AVCC, VSS = AVSS = PLLV SS = 0 V, o = 32.768 kHz*, 2 to 28 MHz, Ta = -20C to +75C (regular specifications), Ta = -40C to +85C (wide-range specifications) Symbol Output data delay time Input data setup time Input data hold time PPG TPU Pulse output delay time Timer output delay time Timer input setup time Timer clock input setup time Timer clock Single edge pulse width Both edges TMR Timer output delay time Timer reset input setup time Timer clock input setup time Timer clock Single edge pulse width Both edges WDT0 WDT1 PWM SCI Overflow output delay time Buzz output delay time Pulse output delay time Input clock Asynchronous cycle Synchronous Input clock pulse width Input clock rise time Input clock fall time t PWD t PRS t PRH t POD t TOCD t TICS t TCKS t TCKWH t TCKWL t TMOD t TMRS t TMCS t TMCWH t TMCWL t WOVD t BUZD t PWOD t Scyc Min -- 25 25 -- -- 25 25 1.5 2.5 -- 25 25 1.5 2.5 -- -- -- 4 6 t SCKW t SCKr t SCKf 0.4 -- -- Max 40 -- -- 40 40 -- -- -- -- 40 -- -- -- -- 40 40 40 -- -- 0.6 1.5 1.5 t Scyc t cyc ns ns ns t cyc Figure 26-27 Figure 26-28 Figure 26-29 Figure 26-30 ns ns ns t cyc Figure 26-24 Figure 26-26 Figure 26-25 ns t cyc Figure 26-23 ns ns Figure 26-21 Figure 26-22 Unit ns Test Conditions Figure 26-20 Item I/O port 1075 Item SCI Transmit data delay time Receive data setup time (synchronous) Receive data hold time (synchronous) A/D Trigger input setup time converter Symbol t TXD t RXS t RXH t TRGS Min -- 40 40 40 Max 40 -- -- -- Unit ns Test Conditions Figure 26-31 ns Figure 26-32 Note: * Only available I/O port, TMR, WDT0, and WDT1. T1 o T2 tPRS Ports 1, 3, 4, 7, 9, A to G (read) tPRH tPWD Ports 1, 3, 7, A to G (write) Figure 26-20 I/O Port Input/Output Timing o tPOD PO 15 to 8 Figure 26-21 PPG Output Timing 1076 o tTOCD Output compare output* tTICS Input capture input* Note: * TIOCA0 to TIOCA5, TIOCB0 to TIOCB5, TIOCC0, TIOCC3, TIOCD0, TIOCD3 Figure 26-22 TPU Input/Output Timing o tTCKS TCLKA to TCLKD tTCKWL tTCKWH tTCKS Figure 26-23 TPU Clock Input Timing o tTMOD TMO0, TMO1 TMO2, TMO3 Figure 26-24 8-bit Timer Output Timing 1077 o tTMCS TMCI01, TMCI23 tTMCWL tTMCWH tTMCS Figure 26-25 8-bit Timer Clock Input Timing o tTMRS TMRI01, TMRI23 Figure 26-26 8-bit Timer Reset Input Timing o tWOVD WDTOVF tWOVD Figure 26-27 WDT0 Output Timing o tBUZD BUZZ tBUZD Figure 26-28 WDT1 Output Timing 1078 o tPWOD PWM3 to PWM0 Figure 26-29 PWM Output Timing tSCKW SCK0 to SCK4 tScyc tSCKr tSCKf Figure 26-30 SCK Clock Input Timing SCK0 to SCK4 tTXD TxD0 to TxD4 (transit data) tRXS RxD0 to RxD4 (receive data) tRXH Figure 26-31 SCI Input/Output Timing (Clock Synchronous Mode) o tTRGS ADTRG Figure 26-32 A/D Converter External Trigger Input Timing 1079 Table 26-10 I2C Bus Timing Conditions: PVCC = 4.5 V to 5.5 V, VSS = 0 V, o = 5 MHz to maximum operating frequency, Ta = -20C to +75C (regular specifications), Ta = -40C to +85C (wide-range specifications) Ratings Item SCL input cycle time SCL input high pulse width SCL input low pulse width SCL, SDA input rise time SCL, SDA input fall time SCL, SDA input spike pulse elimination time SDA input bus free time Start condition input hold time Symbol t SCL t SCLH t SCLL t Sr t Sf t SP t BUF t STAH Min 12t cyc 3t cyc 5t cyc -- -- -- 5t cyc 3t cyc 3t cyc 3t cyc 0.5tcyc 0 -- Typ -- -- -- -- -- -- -- -- -- -- -- -- -- Max -- -- -- Unit ns ns ns Notes Figure 26-33 7.5tcyc * ns 300 1t cyc -- -- -- -- -- -- 400 ns ns ns ns ns ns ns ns pF Retransmission start condition input t STAS setup time Stop condition input setup time Data input setup time Data input hold time SCL, SDA capacitive load t STOS t SDAS t SDAH Cb Note: * 17.5tcyc can be set according to the clock selected for use by the I 2C module. For details, see section 18.4, Usage Notes. 1080 VIH SDA0 to SDA1 tBUF tSTAH VIL tSCLH tSTAS tSP tSTOS SCL0 to SCL1 P* S* tSf tSCLL tSCL tSr tSDAH Sr* tSDAS Note: * S, P, and Sr indicate the following conditions. S: Start condition P: Stop condition Sr: Retransmission start condition Figure 26-33 I 2C Bus Inteface Input/Output Timing (Option) 1081 26.4 A/D Conversion Characteristics Table 26-11 lists the A/D conversion characteristics. Table 26-11 A/D Conversion Characteristics Condition: PVCC = 4.5 V to 5.5 V, AVCC = 4.5 V to 5.5 V, Vref = 4.5 V to AVCC, VSS = AVSS = PLLV SS = 0 V, o = 2 to 28 MHz, Ta = -20C to +75C (regular specifications), Ta = -40C to +85C (wide-range specifications) Min 10 10 -- -- -- -- -- -- -- Typ 10 -- -- -- -- -- -- 0.5 -- Max 10 -- 20 5 3.5 3.5 3.5 -- 4.0 Unit bits s pF k LSB LSB LSB LSB LSB Item Resolution Conversion time Analog input capacitance Permissible signal-source impedance Nonlinearity error Offset error Full-scale error Quantization Absolute accuracy 1082 26.5 D/A Conversion Characteristics Table 26-12 shows the D/A conversion characteristics. Table 26-12 D/A Conversion Characteristics Condition: PVCC = 4.5 V to 5.5 V, AVCC = 4.5 V to 5.5 V, Vref = 4.5 V to AVCC, VSS = AVSS = PLLV SS = 0 V, o = 2 to 28 MHz, Ta = -20C to +75C (regular specifications), Ta = -40C to +85C (wide-range specifications) Min 8 -- -- -- Typ 8 -- 1.5 -- Max 8 10 2.0 1.5 Unit bits s LSB LSB 20-pF capacitive load 2-M resistive load 4-M resistive load Test Conditions Item Resolution Conversion time Absolute accuracy 1083 26.6 Flash Memory Characteristics Table 26-13 Flash Memory Characteristics Conditions: PVCC = 4.5 V to 5.5 V, AVCC = 4.5 V to 5.5 V, VSS = AVSS = PLLV SS = 0 V, Ta = -20C to +75C (regular specifications), Ta = -40C to +85C (wide-range specifications) Item Programming time* * * Erase time* * * 1 3 5 1 2 4 Symbol Min tP tE NWEC 1 Typ 10 50 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Max 200 1000 100 -- -- 30 10 200 -- -- -- -- -- 6 994 -- -- -- 10 -- -- -- -- -- 100 Unit ms/128 bytes ms/block Times s s s s s s s s s s Times Times s s s ms s s s s s Times -- -- -- 1 50 -- -- -- 5 5 4 2 2 -- -- 100 1 100 -- 10 10 6 2 4 -- Number of rewrites Programming Wait time after SWE1 bit setting* Wait time after PSU1 bit setting* Wait time after P1 bit setting* * 1 4 x0 y z0 z1 z2 1 1 Wait time after P1 bit clearing* 1 Wait time after PSU1 bit clearing* Wait time after PV1 bit setting* 1 1 Wait time after H'FF dummy write* Wait time after PV1 bit clearing* Maximum number of writes* * 1 4 1 N1 N2 Common Erasing Wait time after SWE1 bit clearing* Wait time after SWE1 bit setting* Wait time after ESU1 bit setting* Wait time after E1 bit setting* * Wait time after E1 bit clearing* 1 1 5 1 1 x1 x y z 1 Wait time after ESU1 bit clearing* Wait time after EV1 bit setting* 1 1 Wait time after H'FF dummy write* Wait time after EV1 bit clearing* Maximum number of erases* * 1 5 1 1 N Notes: *1 Follow the program/erase algorithms when making the time settings. *2 Programming time per 128 bytes. (Indicates the total time during which the P1 bit is set in flash memory control register 1 (FLMCR1). Does not include the program-verify time.) 1084 *3 Time to erase one block. (Indicates the time during which the E1 bit is set in FLMCR1. Does not include the erase-verify time.) *4 Maximum programming time (tP(max) = Wait time after P1 bit setting (z) x maximum number of writes (N)) (z0 + z1) x 6 + z2 x 994 *5 Maximum erase time (tE(max) = Wait time after E1 bit setting (z) x maximum number of erases (N)) 26.7 Usage Note Although both the F-ZTAT and mask ROM versions fully meet the electrical specifications listed in this manual, due to differences in the fabrication process, the on-chip ROM, and the layout patterns, there will be differences in the actual values of the electrical characteristics, the operating margins, the noise margins, and other aspects. Therefore, if a system is evaluated using the F-ZTAT version, a similar evaluation should also be performed using the mask ROM version. 1085 1086 Section 27 Electrical Characteristics (H8S/2695) 27.1 Absolute Maximum Ratings Table 27-1 lists the absolute maximum ratings. Unless specified otherwise, PVCC refers to both PVCC1 and PVCC2. Table 27-1 Absolute Maximum Ratings Item Power supply voltage Input voltage (ports 4 and 9) Symbol PVCC Vin Value -0.3 to +7.0 -0.3 to AVCC +0.3 -0.3 to PVCC +0.3 -0.3 to AVCC +0.3 -0.3 to +7.0 -0.3 to AVCC +0.3 Regular specifications: -20 to +75 Wide-range specifications: -40 to +85 Storage temperature Tstg -55 to +125 Unit V V V V V V C C C Input voltage (except ports 4 and 9) Vin Reference voltage Analog power supply voltage Analog input voltage Operating temperature Vref AVCC VAN Topr Caution: Permanent damage to the chip may result if absolute maximum rating are exceeded. 1087 27.2 DC Characteristics Table 27-2 lists the DC characteristics. Table 27-3 lists the permissible output currents. Table 27-2 DC Characteristics Conditions: PVCC = 4.5 V to 5.5 V, AVCC = 4.5 V to 5.5 V, Vref = 4.5 V to AVCC, VSS = AVSS = PLLV SS = 0 V, Ta = -20C to +75C (regular specifications), Ta = -40C to +85C (wide-range specifications)*1 Item Schmitt trigger input voltage Input high voltage Symbol IRQ7 to IRQ0 VT - Min 1.0 -- 0.4 Typ -- -- -- Max -- -- Unit V V Test Conditions VT+ VT+ - VT- RES, STBY, NMI, MD2 to MD0 Ports 1, 3, 7, A to G Ports 4 and 9 EXTAL VIH PVCC x 0.7 V PVCC + 0.3 V PVCC - 0.7 -- 2.2 -- PVCC + 0.3 V AVCC + 0.3 V PVCC + 0.3 V 0.5 V AVCC x 0.7 -- PVCC x 0.8 -- VIL -0.3 -- Input low voltage RES, STBY, NMI, MD2 to MD0 Ports 1, 3, 4, 7, 9, A to G EXTAL -0.3 -0.3 3.5 -- -- -- -- -- -- -- -- 0.8 V PVCC x 0.2 V -- -- 0.4 1.0 1.0 1.0 1.0 V A A A A V I OH = -200 A I OH = -1 mA I OL = 1.6 mA Vin =0.5 V to PVCC - 0.5 V Vin = 0.5 V to AVCC - 0.5 V Vin = 0.5 V to PVCC - 0.5 V Output high voltage Output low voltage Input leakage current All output pins VOH All output pins VOL RES STBY, NMI, MD2 to MD0 Ports 4, 9 | Iin | PVCC -0.5 -- -- -- -- -- Three-state leakage current (off state) Ports 1, 3, 7, A to G ITSI -- 1088 Item MOS input Ports A to E pull-up current Input capacitance RES NMI All input pins except RES and NMI Current dissipation* 2 Normal operation Sleep mode All modules stopped Medium-speed mode (o/32) Standby mode Analog power supply current During A/D conversion Idle During A/D conversion Idle Symbol -I P Cin Min 50 -- -- -- Typ -- -- -- -- Max 300 30 30 15 Unit A pF pF pF Test Conditions Vin = 0 V Vin = 0 V f = 1 MHz Ta = 25C I CC* 4 -- -- -- 70 55 40 84 77 -- mA mA mA f = 28 MHz f = 28 MHz f = 28 MHz (reference values) f = 28 MHz (reference values) Ta 50C 50C < Ta -- 54 -- mA -- -- AlCC -- -- AlCC -- -- VRAM 2.0 0.1 -- 0.6 0.1 Ta = 25C 4.0 0.1 Ta = 25C -- 5.0 20 2.0 5.0 5.0 5.0 -- A mA A mA A V AVCC = 5.0 V Reference power supply current Vref = 5.0 V RAM standby voltage* 3 Notes: *1 If the A/D converter is not used, do not leave the AVCC, Vref, and AV SS pins open. Apply a voltage between 3.3 V and 5.5 V to the AVCC and Vref pins by connecting them to PVCC, for instance. Set Vref AVCC. *2 Current dissipation values are for V IH = AVCC (ports 4 and 9), or PVCC (other), and VIL = 0 V, with all output pins unloaded and the on-chip MOS pull-up transistors in the off state. *3 The values are for V RAM PVCC < 3.0 V, VIH min = PVCC - 0.1 V, and VIL max = 0.1 V. *4 I CC depends on PVCC and f as follows: I CC max = 15 (mA) + 0.45 (mA/(MHz x V)) x PV CC x f (normal operation) I CC max = 15 (mA) + 0.40 (mA/(MHz x V)) x PV CC x f (sleep mode) 1089 Table 27-3 Permissible Output Currents Conditions: PVCC = 4.5 V to 5.5 V, AVCC = 4.5 V to 5.5 V, Vref = 4.5 V to AVCC, VSS = AVSS = PLLV SS = 0 V, Ta = -20C to +75C (regular specifications), Ta = -40C to +85C (wide-range specifications) Item Permissible output low current (per pin) Permissible output low current (total) All output pins Total of all output pins PVCC = 4.5 V to 5.5 V PVCC = 4.5 V to 5.5 V PVCC = 4.5 V to 5.5 V PVCC = 4.5 V to 5.5 V Symbol Min I OL IOL -I OH -IOH -- -- -- -- Typ -- -- -- -- Max 10 120 2.0 40 Unit mA mA mA mA Permissible output All output high current (per pin) pins Permissible output high current (total) Total of all output pins Note: To protect chip reliability, do not exceed the output current values in table 27-3. 1090 27.3 AC Characteristics Figure 27-1 show, the test conditions for the AC characteristics. 5V RL LSI output pin C RH C = 50 pF: Ports 10 to 13, 70 to 73, A to G (In case of expansion bus control signal output pin setting) C = 30 pF: All ports RL = 2.4 k RH = 12 k Input/output timing measurement levels * Low level : 0.8 V * High level : 2.0 V Figure 27-1 Output Load Circuit 1091 27.3.1 Clock Timing Table 27-4 lists the clock timing Table 27-4 Clock Timing Condition: PVCC = 4.5 V to 5.5 V, AVCC = 4.5 V to 5.5 V, Vref = 4.5 V to AVCC, VSS = AVSS = 0 V, o = 2 to 28 MHz*, Ta = -20C to +75C (regular specifications), Ta = -40C to +85C (wide-range specifications) 28MHz Item Clock cycle time Clock high pulse width Clock low pulse width Clock rise time Clock fall time Clock oscillator settling time at reset (crystal) Clock oscillator settling time in software standby (crystal) External clock output stabilization delay time Symbol t cyc t CH t CL t Cr t Cf t OSC1 t OSC2 t DEXT Min 35.7 10 10 -- -- 10 5 2 Max 500 -- -- 5 5 -- -- -- Unit ns ns ns ns ns ms ms ms Figure 27-3 Figure 24-3 Figure 27-3 Test Conditions Figure 27-2 Note: * The input clock frequency should be set to 25 MHz or less. If o = 25 MHz to 28 MHz, use the PLL to multiply the frequency (x2 or x4). 1092 tcyc tCH o tCL tCr tCf Figure 27-2 System Clock Timing EXTAL tDEXT VCC tDEXT STBY tOSC1 RES tOSC1 o Figure 27-3 Oscillator Settling Timing 1093 27.3.2 Control Signal Timing Table 27-5 lists the control signal timing. Table 27-5 Control Signal Timing Condition: PVCC = 4.5 V to 5.5 V, AVCC = 4.5 V to 5.5 V, Vref = 4.5 V to AVCC, VSS = AVSS = PLLV SS = 0 V, o = 2 to 28 MHz, Ta = -20C to +75C (regular specifications), Ta = -40C to +85C (wide-range specifications) Symbol t RESS t RESW t MRESS t MRESW t NMIS t NMIH t NMIW t IRQS t IRQH t IRQW Min 200 20 250 20 150 10 200 150 10 200 Max -- -- -- -- -- -- -- -- -- -- ns ns ns ns Unit ns t cyc ns t cyc ns Figure 27-5 Test Conditions Figure 27-4 Item RES setup time RES pulse width MRES setup time MRES pulse width NMI setup time NMI hold time NMI pulse width (exiting software standby mode) IRQ setup time IRQ hold time IRQ pulse width (exiting software standby mode) 1094 o tRESS RES tRESW tRESS tMRESS tMRESS MRES tMRESW Figure 27-4 Reset Input Timing o tNMIS NMI tNMIW tNMIH IRQ tIRQW tIRQS IRQ Edge input tIRQS IRQ Level input tIRQH Figure 27-5 Interrupt Input Timing 1095 27.3.3 Bus Timing Table 27-6 lists the bus timing. Table 27-6 Bus Timing Condition: PVCC = 4.5 V to 5.5 V, AVCC = 4.5 V to 5.5 V, Vref = 4.5 V to AVCC, VSS = AVSS = PLLV SS = 0 V, o = 2 to 28 MHz, Ta = -20C to +75C (regular specifications), Ta = -40C to +85C (wide-range specifications) Symbol t AD t AS t AH t CSD1 t CSD2 t ASD t RSD1 t RSD2 t RDS t RDH t ACC1 t ACC2 t ACC3 t ACC4 t ACC5 t WRD1 t WRD2 t WSW1 t WSW2 t WDD t WDS t WDH t WCS t WCH Min -- 0.5 x tcyc - 13 0.5 x tcyc - 8 -- -- -- -- -- 15 0 -- -- -- -- -- -- -- 1.0 x t cyc - 13 1.5 x t cyc - 13 -- 0.5 x t cyc - 13 0.5 x t cyc - 8 0.5 x t cyc - 10 0.5 x t cyc - 10 Max 20 -- -- 15 15 15 15 15 -- -- 1.0 x t cyc - 15 1.5 x t cyc - 15 2.0 x t cyc - 15 2.5 x t cyc - 15 3.0 x t cyc - 15 15 15 -- -- 22 -- -- -- -- Unit ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns Test Conditions Figure 27-6 to figure 27-10 Item Address delay time Address setup time Address hold time CS delay time 1 CS delay time 2 AS delay time RD delay time 1 RD delay time 2 Read data setup time Read data hold time Read data access time 1 Read data access time 2 Read data access time 3 Read data access time 4 Read data access time 5 WR delay time 1 WR delay time 2 WR pulse width 1 WR pulse width 2 Write data delay time Write data setup time Write data hold time WR setup time WR hold time 1096 Item WAIT setup time WAIT hold time BREQ setup time BACK delay time Bus-floating time BREQO delay time Symbol t WTS t WTH t BRQS t BACD t BZD t BRQOD Min 25 5 30 -- -- -- Max -- -- -- 15 40 25 Unit ns ns ns ns ns ns Conditions Figure 27-8 Figure 27-11 Figure 27-12 T1 T2 o tAD A23 to A0 tCSD1 CS7 to CS0 tAS tAH tASD AS tASD tRSD1 RD (read) tACC2 tRSD2 tAS tACC3 tRDS tRDH D15 to D0 (read) tWRD2 WR (write) tAS tWDD D15 to D0 (write) tWSW1 tWRD2 tAH tWDH Figure 27-6 Basic Bus Timing (Two-State Access) 1097 T1 T2 T3 o tAD A23 to A0 tCSD1 CS7 to CS0 tASD AS tASD tAS tAH tRSD1 RD (read) tACC4 tRSD2 tAS tACC5 tRDS tRDH D15 to D0 (read) tWRD1 WR (write) tWDD tWDS D15 to D0 (write) tWSW2 tWRD2 tAH tWDH Figure 27-7 Basic Bus Timing (Three-State Access) 1098 T1 T2 TW T3 o A23 to A0 CS7 to CS0 AS RD (read) D15 to D0 (read) WR (write) D15 to D0 (write) tWTS tWTH WAIT tWTS tWTH Figure 27-8 Basic Bus Timing (Three-State Access with One Wait State) 1099 T1 T2 or T3 T1 T2 o tAD A23 to A0 tAS tAH CS7 to CS0 tASD AS tASD tRSD2 RD (read) tACC3 D15 to D0 (read) tRDS tRDH Figure 27-9 Burst ROM Access Timing (Two-State Access) 1100 T1 o T2 or T3 T1 tAD A23 to A0 CS7 to CS0 AS tRSD2 RD (read) tACC1 D15 to D0 (read) tRDS tRDH Figure 27-10 Burst ROM Access Timing (One-State Access) 1101 o tBRQS BREQ tBRQS tBACD BACK tBZD A23 to A0 CS7 to CS0, AS, RD, HWR, LWR tBACD tBZD Figure 27-11 External Bus Release Timing o tBRQOD BREQO tBRQOD Figure 27-12 External Bus Request Output Timing 1102 27.3.4 Timing of On-Chip Supporting Modules Table 27-7 lists the timing of on-chip supporting modules. Table 27-7 Timing of On-Chip Supporting Modules Condition: PVCC = 4.5 V to 5.5 V, AVCC = 4.5 V to 5.5 V, Vref = 4.5 V to AVCC, VSS = AVSS = PLLV SS = 0 V, o = 2 to 28 MHz, Ta = -20C to +75C (regular specifications), Ta = -40C to +85C (wide-range specifications) Symbol Output data delay time Input data setup time Input data hold time TPU Timer output delay time Timer input setup time Timer clock input setup time Timer clock Single edge pulse width Both edges WDT0 SCI Overflow output delay time Input clock Asynchronous cycle Synchronous Input clock pulse width Input clock rise time Input clock fall time Transmit data delay time Receive data setup time (synchronous) Receive data hold time (synchronous) A/D Trigger input setup time converter t PWD t PRS t PRH t TOCD t TICS t TCKS t TCKWH t TCKWL t WOVD t Scyc Min -- 25 25 -- 25 25 1.5 2.5 -- 4 6 t SCKW t SCKr t SCKf t TXD t RXS t RXH t TRGS 0.4 -- -- -- 40 40 40 Max 40 -- -- 40 -- -- -- -- 40 -- -- 0.6 1.5 1.5 40 -- -- -- ns Figure 27-19 ns Figure 27-18 t Scyc t cyc ns t cyc Figure 27-16 Figure 27-17 ns t cyc Figure 27-15 ns Figure 27-14 Unit ns Test Conditions Figure 27-13 Item I/O port 1103 T1 o T2 tPRS Ports 1, 3, 4, 7, 9, A to G (read) tPRH tPWD Ports 1, 3, 7, A to G (write) Figure 27-13 I/O Port Input/Output Timing o tTOCD Output compare output* tTICS Input capture input* Note: * TIOCA0 to TIOCA5, TIOCB0 to TIOCB5, TIOCC0, TIOCC3, TIOCD0, TIOCD3 Figure 27-14 TPU Input/Output Timing o tTCKS TCLKA to TCLKD tTCKWL tTCKWH tTCKS Figure 27-15 TPU Clock Input Timing 1104 o tWOVD WDTOVF tWOVD Figure 27-16 WDT0 Output Timing tSCKW SCK0 to SCK4 tScyc tSCKr tSCKf Figure 27-17 SCK Clock Input Timing SCK0 to SCK4 tTXD TxD0 to TxD4 (transit data) tRXS RxD0 to RxD4 (receive data) tRXH Figure 27-18 SCI Input/Output Timing (Clock Synchronous Mode) o tTRGS ADTRG Figure 27-19 A/D Converter External Trigger Input Timing 1105 27.4 A/D Conversion Characteristics Table 27-8 lists the A/D conversion characteristics. Table 27-8 A/D Conversion Characteristics Condition: PVCC = 4.5 V to 5.5 V, AVCC = 4.5 V to 5.5 V, Vref = 4.5 V to AVCC, VSS = AVSS = PLLV SS = 0 V, o = 2 to 28 MHz, Ta = -20C to +75C (regular specifications), Ta = -40C to +85C (wide-range specifications) Min 10 10 -- -- -- -- -- -- -- Typ 10 -- -- -- -- -- -- 0.5 -- Max 10 -- 20 5 3.5 3.5 3.5 -- 4.0 Unit bits s pF k LSB LSB LSB LSB LSB Item Resolution Conversion time Analog input capacitance Permissible signal-source impedance Nonlinearity error Offset error Full-scale error Quantization Absolute accuracy 27.5 Usage Note Although both the F-ZTAT and mask ROM versions fully meet the electrical specifications listed in this manual, due to differences in the fabrication process, the on-chip ROM, and the layout patterns, there will be differences in the actual values of the electrical characteristics, the operating margins, the noise margins, and other aspects. Therefore, if a system is evaluated using the F-ZTAT version, a similar evaluation should also be performed using the mask ROM version. 1106 Appendix A Instruction Set A.1 Instruction List Operand Notation Rd Rs Rn ERn MAC (EAd) (EAs) EXR CCR N Z V C PC SP #IMM disp + - x / ( ) <> :8/:16/:24/:32 General register (destination)* General register (source)* General register* General register (32-bit register) Multiply-and-accumulate register (32-bit register) Destination operand Source operand Extended control register Condition-code register N (negative) flag in CCR Z (zero) flag in CCR V (overflow) flag in CCR C (carry) flag in CCR Program counter Stack pointer Immediate data Displacement Add Subtract Multiply Divide Logical AND Logical OR Logical exclusive OR Transfer from the operand on the left to the operand on the right, or transition from the state on the left to the state on the right Logical NOT (logical complement) Contents of operand 8-, 16-, 24-, or 32-bit length Note: * General registers include 8-bit registers (R0H to R7H, R0L to R7L), 16-bit registers (R0 to R7, E0 to E7), and 32-bit registers (ER0 to ER7). 1107 Condition Code Notation Symbol Changes according to the result of instruction * 0 1 -- Undetermined (no guaranteed value) Always cleared to 0 Always set to 1 Not affected by execution of the instruction 1108 Table A-1 Instruction Set (1) Data Transfer Instructions Addressing Mode/ Instruction Length (Bytes) Condition Code Operation #xx:8Rd8 IHNZVC ---- ---- ---- ---- ---- ---- ---- @aa:16Rd8 @aa:32Rd8 Rs8@ERd ---- ---- ---- Rs8@(d:16,ERd) Rs8@(d:32,ERd) ---- ---- 0-- 0-- 0-- 0-- 0-- 0-- 0-- 0-- 0-- 0-- 0-- 0-- No. of States*1 Advanced 1 1 2 3 5 3 2 3 4 2 3 5 Operand Size #xx Rn @ERn @(d,ERn) @-ERn/@ERn+ @aa @(d,PC) Mnemonic MOV MOV.B Rs,Rd MOV.B @ERs,Rd MOV.B @(d:16,ERs),Rd MOV.B @(d:32,ERs),Rd MOV.B @ERs+,Rd MOV.B @aa:8,Rd MOV.B @aa:16,Rd MOV.B @aa:32,Rd MOV.B Rs,@ERd MOV.B Rs,@(d:16,ERd) MOV.B Rs,@(d:32,ERd) MOV.B Rs,@-ERd MOV.B Rs,@aa:8 MOV.B Rs,@aa:16 MOV.B Rs,@aa:32 MOV.W #xx:16,Rd MOV.W Rs,Rd MOV.W @ERs,Rd B W4 W W 2 2 B B B B 8 2 2 4 6 B 4 B 2 B 6 B 4 B 2 B 2 B 8 B 4 B 2 @ERsRd8 @(d:16,ERs)Rd8 @(d:32,ERs)Rd8 B 2 Rs8Rd8 MOV.B #xx:8,Rd B2 @@aa -- @ERsRd8,ERs32+1ERs32 @aa:8Rd8 ERd32-1ERd32,Rs8@ERd Rs8@aa:8 Rs8@aa:16 Rs8@aa:32 #xx:16Rd16 Rs16Rd16 @ERsRd16 ---- ---- ---- ---- ---- ---- ---- 0-- 0-- 0-- 0-- 0-- 0-- 0-- 3 2 3 4 2 1 2 1109 Operand Size #xx Rn @ERn @(d,ERn) @-ERn/@ERn+ @aa @(d,PC) @@aa -- MOV.L @aa:32,ERd L 8 @aa:32ERd32 ---- 1110 Addressing Mode/ Instruction Length (Bytes) Condition Code Operation @(d:16,ERs)Rd16 @(d:32,ERs)Rd16 2 4 6 2 4 8 2 4 6 Rs16@ERd Rs16@(d:16,ERd) Rs16@(d:32,ERd) @aa:32Rd16 @aa:16Rd16 ---- ---- IHNZVC 0-- 0-- 0-- ---- ---- ---- ---- ---- 0-- 0-- 0-- 0-- 0-- 0-- ---- ---- #xx:32ERd32 2 4 6 10 4 6 ERs32ERd32 @ERsERd32 @(d:16,ERs)ERd32 @(d:32,ERs)ERd32 @ERsERd32,ERs32+4@ERs32 @aa:16ERd32 ---- ---- ---- ---- ---- ---- ---- 0-- 0-- 0-- 0-- 0-- 0-- 0-- 0-- 0-- 0-- Mnemonic MOV.W @(d:16,ERs),Rd MOV.W @(d:32,ERs),Rd MOV.W @ERs+,Rd MOV.W @aa:16,Rd MOV.W @aa:32,Rd MOV.W Rs,@ERd MOV.W Rs,@(d:16,ERd) MOV.W Rs,@(d:32,ERd) MOV.W Rs,@-ERd MOV.W Rs,@aa:16 MOV.W Rs,@aa:32 MOV.L #xx:32,ERd MOV.L ERs,ERd MOV.L @ERs,ERd MOV.L @(d:16,ERs),ERd MOV.L @(d:32,ERs),ERd MOV.L @ERs+,ERd MOV.L @aa:16,ERd L L L L L L L6 W W W W W W W W W W 8 W 4 3 5 3 3 4 2 3 5 3 3 4 3 1 4 5 7 5 5 6 @ERsRd16,ERs32+2ERs32 -- -- ERd32-2ERd32,Rs16@ERd -- -- Rs16@aa:16 Rs16@aa:32 No. of States*1 Advanced MOV Addressing Mode/ Instruction Length (Bytes) Condition Code Operation ERs32@ERd ---- ---- ---- IHNZVC 0-- 0-- 0-- 0-- ---- ---- ---- ---- ---- ---- (@SPERn32,SP+4SP) 0-- 0-- 0-- 0-- 0-- 0-- ------------ No. of States*1 Advanced 4 5 7 5 5 6 3 5 3 5 7/9/11 [1] Mnemonic MOV.L ERs,@ERd MOV.L ERs,@(d:16,ERd) L MOV.L ERs,@(d:32,ERd) L MOV.L ERs,@-ERd MOV.L ERs,@aa:16 MOV.L ERs,@aa:32 POP.W Rn POP.L ERn PUSH.W Rn PUSH.L ERn LDM @SP+,(ERm-ERn) L 4 L 4 W 2 L 4 W 2 L 8 ERs32@aa:32 @SPRn16,SP+2SP @SPERn32,SP+4SP SP-2SP,Rn16@SP SP-4SP,ERn32@SP L 6 ERs32@aa:16 L 4 10 ERs32@(d:32,ERd) 6 ERs32@(d:16,ERd) L 4 MOV Operand Size #xx Rn @ERn @(d,ERn) @-ERn/@ERn+ @aa @(d,PC) @@aa -- ERd32-4ERd32,ERs32@ERd -- -- POP Repeated for each register restored (SP-4SP,ERn32@SP) LDM STM STM (ERm-ERn),@-SP L 4 ------------ Repeated for each register saved PUSH 7/9/11 [1] MOVFPE MOVTPE Rs,@aa:16 MOVFPE @aa:16,Rd Cannot be used in the H8S/2633 Series Cannot be used in the H8S/2633 Series [2] [2] MOVTPE 1111 Operand Size #xx Rn @ERn @(d,ERn) @-ERn/@ERn+ @aa @(d,PC) @@aa -- ADD ADD.B Rs,Rd ADD.W #xx:16,Rd ADD.W Rs,Rd ADD.L #xx:32,ERd ADD.L ERs,ERd ADDX #xx:8,Rd ADDX Rs,Rd ADDS #1,ERd ADDS #2,ERd ADDS #4,ERd INC.B Rd INC.W #1,Rd INC.W #2,Rd INC.L #1,ERd INC.L #2,ERd DAA Rd SUB.B Rs,Rd SUB.W #xx:16,Rd B B W4 L 2 2 2 L 2 W 2 W 2 B 2 L 2 L 2 L 2 B 2 B2 L 2 L6 W 2 Rd16+Rs16Rd16 ERd32+#xx:32ERd32 ERd32+ERs32ERd32 Rd8+#xx:8+CRd8 Rd8+Rs8+CRd8 ERd32+1ERd32 ERd32+2ERd32 ERd32+4ERd32 Rd8+1Rd8 Rd16+1Rd16 Rd16+2Rd16 ERd32+1ERd32 ERd32+2ERd32 Rd8 decimal adjustRd8 Rd8-Rs8Rd8 Rd16-#xx:16Rd16 W4 Rd16+#xx:16Rd16 B 2 Rd8+Rs8Rd8 ADD.B #xx:8,Rd B2 Rd8+#xx:8Rd8 -- -- -- [5] SUB -- -- [3] 1112 Addressing Mode/ Instruction Length (Bytes) Condition Code Operation IHNZVC Mnemonic 1 1 -- [3] 2 -- [3] 1 -- [4] 3 -- [4] -- 1 [5] 1 1 ---- -- ---- -- ---- -- ---- -- ---- -- ---- -- ---- -- ---- -- ---- -- ---- -- ---- -- --* * 1 1 1 1 1 1 1 1 1 1 2 (2) Arithmetic Instructions No. of States*1 Advanced ADDX ADDS INC DAA Addressing Mode/ Instruction Length (Bytes) Condition Code Operation Rd16-Rs16Rd16 ERd32-#xx:32ERd32 -- [3] IHNZVC No. of States*1 Advanced 1 3 Mnemonic SUB.W Rs,Rd SUB.L #xx:32,ERd SUB.L ERs,ERd SUBX #xx:8,Rd SUBX Rs,Rd SUBS #1,ERd SUBS #2,ERd SUBS #4,ERd DEC.B Rd DEC.W #1,Rd DEC.W #2,Rd DEC.L #1,ERd DEC.L #2,ERd DAS Rd MULXU.B Rs,Rd MULXU.W Rs,ERd W 2 B 2 B 2 L 2 L 2 W 2 W 2 B 2 L 2 Rd8-1Rd8 Rd16-1Rd16 Rd16-2Rd16 ERd32-1ERd32 ERd32-2ERd32 Rd8 decimal adjustRd8 L 2 L 2 ERd32-1ERd32 ERd32-2ERd32 ERd32-4ERd32 B 2 Rd8-Rs8-CRd8 B2 Rd8-#xx:8-CRd8 L 2 ERd32-ERs32ERd32 L6 W 2 SUB Operand Size #xx Rn @ERn @(d,ERn) @-ERn/@ERn+ @aa @(d,PC) @@aa -- -- [4] -- [4] -- -- 1 [5] [5] 1 1 ------------ ------------ ------------ ---- ---- ---- ---- ---- --* -- -- -- -- -- *-- 1 1 1 1 1 1 1 1 1 SUBS DEC DAS MULXU Rd8xRs8Rd16 (unsigned multiplication) -- -- -- -- -- -- Rd16xRs16ERd32 (unsigned multiplication) ------------ SUBX 3 4 MULXS MULXS.W Rs,ERd W MULXS.B Rs,Rd B 4 4 Rd8xRs8Rd16 (signed multiplication) Rd16xRs16ERd32 (signed multiplication) ---- ---- ---- ---- 4 5 1113 Operand Size #xx Rn @ERn @(d,ERn) @-ERn/@ERn+ @aa @(d,PC) @@aa -- NEG.L ERd EXTU.W Rd EXTU.L ERd L W 2 2 L 2 0-ERd32ERd32 0( -- ---- 0 1114 Addressing Mode/ Instruction Length (Bytes) Condition Code Operation IHNZVC Mnemonic DIVXU.B Rs,Rd RdL: quotient) (unsigned division) DIVXU.W Rs,ERd W 2 ERd32/Rs16ERd32 (Ed: remainder, -- -- [6] [7] -- -- Rd: quotient) (unsigned division) DIVXS.B Rs,Rd B 4 Rd16/Rs8Rd16 (RdH: remainder, -- -- [8] [7] -- -- RdL: quotient) (signed division) DIVXS.W Rs,ERd Rd8-#xx:8 2 Rd8-Rs8 Rd16-#xx:16 2 Rd16-Rs16 ERd32-#xx:32 2 2 2 ERd32-ERs32 0-Rd8Rd8 0-Rd16Rd16 W 4 ERd32/Rs16ERd32 (Ed: remainder, -- -- [8] [7] -- -- Rd: quotient) (signed division) CMP.B #xx:8,Rd CMP.B Rs,Rd CMP.W #xx:16,Rd CMP.W Rs,Rd CMP.L #xx:32,ERd CMP.L ERs,ERd NEG.B Rd NEG.W Rd W B L L6 W W4 B B2 -- -- 1 1 -- [3] 2 -- [3] 1 -- [4] 3 -- [4] -- -- 1 1 1 1 ---- 0 0-- 0-- 1 1 21 13 20 B 2 Rd16/Rs8Rd16 (RdH: remainder, -- -- [6] [7] -- -- 12 No. of States*1 Advanced DIVXU DIVXS CMP NEG EXTU Addressing Mode/ Instruction Length (Bytes) Condition Code Operation ( No. of States*1 Advanced 1 Mnemonic EXTS.W Rd W 2 EXTS EXTS.L ERd ( Operand Size #xx Rn @ERn @(d,ERn) @-ERn/@ERn+ @aa @(d,PC) @@aa -- L 2 ---- 0-- 1 ( MAC CLRMAC LDMAC STMAC ---- TAS*3 TAS @ERd B 4 @ERd-0CCR set, (1) 0-- 4 1115 Operand Size #xx Rn @ERn @(d,ERn) @-ERn/@ERn+ @aa @(d,PC) @@aa -- NOT.L ERd L 2 ERd32ERd32 ---- 1116 (3) Logical Instructions Addressing Mode/ Instruction Length (Bytes) Condition Code Operation Rd8#xx:8Rd8 IHNZVC ---- ---- ---- ---- ---- ---- ---- ---- ---- Rd16Rs16Rd16 ERd32#xx:32ERd32 ---- ---- ERd32ERs32ERd32 Rd8#xx:8Rd8 ---- ---- Rd8Rs8Rd8 Rd16#xx:16Rd16 ---- ---- Rd16Rs16Rd16 ---- 0-- 0-- 0-- 0-- 0-- 0-- 0-- 0-- 0-- 0-- 0-- 0-- 0-- 0-- 0-- 0-- No. of States*1 Advanced 1 1 2 1 3 2 1 1 2 1 3 2 1 1 2 1 Mnemonic AND AND.B #xx:8,Rd AND.B Rs,Rd AND.W #xx:16,Rd AND.W Rs,Rd AND.L #xx:32,ERd AND.L ERs,ERd OR OR.B #xx:8,Rd OR.B Rs,Rd OR.W #xx:16,Rd OR.W Rs,Rd OR.L #xx:32,ERd OR.L ERs,ERd XOR XOR.B #xx:8,Rd XOR.B Rs,Rd XOR.W #xx:16,Rd XOR.W Rs,Rd XOR.L #xx:32,ERd XOR.L ERs,ERd NOT NOT.B Rd NOT.W Rd L B W L6 4 2 2 W 2 W4 B 2 B2 L 4 L6 W 2 W4 B 2 B2 L 4 L6 W 2 Rd16Rs16Rd16 ERd32#xx:32ERd32 ERd32ERs32ERd32 Rd8#xx:8Rd8 Rd8Rs8Rd8 Rd16#xx:16Rd16 W4 Rd16#xx:16Rd16 B 2 Rd8Rs8Rd8 B2 ERd32#xx:32ERd32 ERd32ERs32ERd32 Rd8Rd8 Rd16Rd16 ---- ---- ---- ---- 0-- 0-- 0-- 0-- 0-- 3 2 1 1 1 (4) Shift Instructions Addressing Mode/ Instruction Length (Bytes) Condition Code Operation IHNZVC ---- ---- 0 C MSB LSB ---- ---- ---- ---- ---- ---- ---- MSB LSB C ---- ---- ---- ---- ---- 0 C MSB LSB ---- ---- No. of States*1 Advanced 1 1 1 1 1 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 Mnemonic SHAL.B Rd SHAL.B #2,Rd SHAL.W Rd SHAL.W #2,Rd SHAL.L ERd SHAL.L #2,ERd SHAR.B Rd SHAR.B #2,Rd SHAR.W Rd SHAR.W #2,Rd SHAR.L ERd SHAR.L #2,ERd SHLL.B Rd SHLL.B #2,Rd SHLL.W Rd SHLL.W #2,Rd SHLL.L ERd SHLL.L #2,ERd L L W 2 2 2 W 2 B 2 B 2 L 2 L 2 W 2 W 2 B 2 B 2 L 2 L 2 W 2 W 2 B 2 B 2 SHAL SHAR SHLL Operand Size #xx Rn @ERn @(d,ERn) @-ERn/@ERn+ @aa @(d,PC) @@aa -- ---- ---- 0 0 1 1 1117 Operand Size #xx Rn @ERn @(d,ERn) @-ERn/@ERn+ @aa @(d,PC) @@aa -- ROTXR.L #2,ERd L 2 -- ---- 0 -- -- -- 0 -- -- -- -- -- -- -- -- -- -- -- -- -- MSB -- 2 LSB C C MSB LSB MSB LSB C ---- 0 0 0 ---- 0 0 ---- 0 0 ---- 0 0 ---- 0 ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 0 0 0 0 0 0 0 0 0 0 0 0 1118 Addressing Mode/ Instruction Length (Bytes) Condition Code Operation IHNZVC Mnemonic SHLR.B Rd SHLR.B #2,Rd SHLR.W Rd SHLR.W #2,Rd SHLR.L ERd SHLR.L #2,ERd ROTXL.B Rd ROTXL.B #2,Rd ROTXL.W Rd ROTXL.W #2,Rd ROTXL.L ERd ROTXL.L #2,ERd ROTXR.B Rd ROTXR.B #2,Rd ROTXR.W Rd ROTXR.W #2,Rd ROTXR.L ERd L W 2 W 2 B 2 B 2 L 2 L 2 W 2 W 2 B 2 B 2 L 2 L 2 W 2 W 2 B 2 B 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ---- 0 No. of States*1 Advanced SHLR ROTXL ROTXR Addressing Mode/ Instruction Length (Bytes) Condition Code Operation ---- ---- ---- C MSB LSB ---- ---- ---- -- -- -- MSB -- 1 LSB C ---- ---- ---- ---- ---- ---- IHNZVC 0 0 0 0 0 0 0 0 0 0 0 0 No. of States*1 Advanced 1 1 1 1 1 1 1 1 1 1 1 1 Mnemonic ROTL.B Rd ROTL.B #2,Rd ROTL.W Rd ROTL.W #2,Rd ROTL.L ERd ROTL.L #2,ERd ROTR.B Rd ROTR.B #2,Rd ROTR.W Rd ROTR.W #2,Rd ROTR.L ERd ROTR.L #2,ERd L 2 L 2 W 2 W 2 B 2 B 2 L 2 L 2 W 2 W 2 B 2 B 2 ROTL ROTR Operand Size #xx Rn @ERn @(d,ERn) @-ERn/@ERn+ @aa @(d,PC) @@aa -- 1119 Operand Size #xx Rn @ERn @(d,ERn) @-ERn/@ERn+ @aa @(d,PC) @@aa -- 1120 Addressing Mode/ Instruction Length (Bytes) Condition Code Operation (#xx:3 of Rd8)1 4 4 6 8 2 4 4 6 8 2 4 4 6 8 2 4 4 B 6 (Rn8 of Rd8)1 (Rn8 of @ERd)1 (Rn8 of @aa:8)1 (Rn8 of @aa:16)1 (Rn8 of @aa:32)1 (#xx:3 of Rd8)0 (#xx:3 of @ERd)0 (#xx:3 of @aa:8)0 (#xx:3 of @aa:16)0 (#xx:3 of @aa:32)0 (Rn8 of Rd8)0 (Rn8 of @ERd)0 (Rn8 of @aa:8)0 B (Rn8 of @aa:16)0 (#xx:3 of @aa:16)1 (#xx:3 of @aa:32)1 (#xx:3 of @aa:8)1 (#xx:3 of @ERd)1 IHNZVC ------------ ------------ ------------ ------------ ------------ ------------ ------------ ------------ ------------ ------------ ------------ ------------ ------------ ------------ ------------ ------------ ------------ ------------ ------------ Mnemonic BSET #xx:3,Rd BSET #xx:3,@ERd BSET #xx:3,@aa:8 BSET #xx:3,@aa:16 BSET #xx:3,@aa:32 BSET Rn,Rd BSET Rn,@ERd BSET Rn,@aa:8 BSET Rn,@aa:16 BSET Rn,@aa:32 BCLR #xx:3,Rd BCLR #xx:3,@ERd BCLR #xx:3,@aa:8 BCLR #xx:3,@aa:16 BCLR #xx:3,@aa:32 BCLR Rn,Rd BCLR Rn,@ERd BCLR Rn,@aa:8 BCLR Rn,@aa:16 B B B B B B B B B B B B B B B B B 2 1 4 4 5 6 1 4 4 5 6 1 4 4 5 6 1 4 4 5 (5) Bit-Manipulation Instructions No. of States*1 Advanced BSET BCLR Addressing Mode/ Instruction Length (Bytes) Condition Code Operation (Rn8 of @aa:32)0 IHNZVC ------------ No. of States*1 Advanced 6 1 Mnemonic BCLR Rn,@aa:32 BNOT #xx:3,Rd BNOT #xx:3,@ERd [ (#xx:3 of @ERd)] BNOT #xx:3,@aa:8 [ (#xx:3 of @aa:8)] BNOT #xx:3,@aa:16 B 6 (#xx:3 of @aa:16) [ (#xx:3 of @aa:16)] BNOT #xx:3,@aa:32 B 8 (#xx:3 of @aa:32) [ (#xx:3 of @aa:32)] BNOT Rn,Rd BNOT Rn,@ERd BNOT Rn,@aa:8 BNOT Rn,@aa:16 B 6 B 4 B 4 B 2 (Rn8 of Rd8)[ (Rn8 of Rd8)] B 4 (#xx:3 of @aa:8) B 4 (#xx:3 of @ERd) B 2 B 8 BCLR Operand Size #xx Rn @ERn @(d,ERn) @-ERn/@ERn+ @aa @(d,PC) @@aa -- (#xx:3 of Rd8)[ (#xx:3 of Rd8)] -- -- -- -- -- -- ------------ BNOT 4 ------------ 4 ------------ 5 ------------ 6 ------------ (Rn8 of @ERd)[ (Rn8 of @ERd)] -- -- -- -- -- -- (Rn8 of @aa:8)[ (Rn8 of @aa:8)] -- -- -- -- -- -- (Rn8 of @aa:16) [ (Rn8 of @aa:16)] ------------ 1 4 4 5 BNOT Rn,@aa:32 B 8 (Rn8 of @aa:32) [ (Rn8 of @aa:32)] ------------ 6 BTST BTST #xx:3,@ERd BTST #xx:3,@aa:8 BTST #xx:3,@aa:16 B B B BTST #xx:3,Rd B 2 4 4 6 (#xx:3 of Rd8)Z (#xx:3 of @ERd)Z (#xx:3 of @aa:8)Z (#xx:3 of @aa:16)Z ------ ------ ------ ------ ---- ---- ---- ---- 1 3 3 4 1121 Operand Size #xx Rn @ERn @(d,ERn) @-ERn/@ERn+ @aa @(d,PC) @@aa -- BTST Rn,@aa:32 BLD #xx:3,Rd BLD #xx:3,@ERd BLD #xx:3,@aa:8 BLD #xx:3,@aa:16 BLD #xx:3,@aa:32 BILD #xx:3,Rd BILD #xx:3,@ERd BILD #xx:3,@aa:8 BILD #xx:3,@aa:16 BILD #xx:3,@aa:32 BST #xx:3,Rd BST #xx:3,@ERd BST #xx:3,@aa:8 B B B 2 4 4 B B B 4 6 8 B 4 B 2 B 8 B 6 B 4 B 4 B 2 (#xx:3 of Rd8)C B 8 (Rn8 of @aa:32)Z ------ (#xx:3 of @aa:32)C C(#xx:3 of Rd8) C(#xx:3 of @ERd) C(#xx:3 of @aa:8) ---------- 1122 Addressing Mode/ Instruction Length (Bytes) Condition Code Operation (#xx:3 of @aa:32)Z (Rn8 of Rd8)Z 4 4 6 (Rn8 of @aa:16)Z (Rn8 of @aa:8)Z (Rn8 of @ERd)Z IHNZVC ------ ------ ------ ------ ------ ---- ---- ---- ---- ---- ---- ---------- ---------- ---------- ---------- ---------- (#xx:3 of Rd8)C (#xx:3 of @ERd)C (#xx:3 of @aa:8)C (#xx:3 of @aa:16)C ---------- ---------- ---------- ---------- Mnemonic BTST #xx:3,@aa:32 BTST Rn,Rd BTST Rn,@ERd BTST Rn,@aa:8 BTST Rn,@aa:16 B B B B 2 B 8 5 1 3 3 4 5 1 3 3 4 5 1 3 3 4 5 ------------ ------------ ------------ 1 4 4 (#xx:3 of @ERd)C (#xx:3 of @aa:8)C (#xx:3 of @aa:16)C (#xx:3 of @aa:32)C No. of States*1 Advanced BTST BLD BILD BST Addressing Mode/ Instruction Length (Bytes) Condition Code Operation C(#xx:3 of @aa:16) C(#xx:3 of @aa:32) C(#xx:3 of Rd8) IHNZVC ------------ ------------ ------------ ------------ ------------ ------------ ------------ ---------- ---------- ---------- C(#xx:3 of @aa:16)C C(#xx:3 of @aa:32)C C[ (#xx:3 of Rd8)]C ---------- ---------- ---------- C[ (#xx:3 of @ERd)]C ---------- No. of States*1 Advanced 5 6 1 4 4 5 6 1 3 3 4 5 1 3 Mnemonic BST #xx:3,@aa:16 BST #xx:3,@aa:32 BIST #xx:3,Rd BIST #xx:3,@ERd BIST #xx:3,@aa:8 BIST #xx:3,@aa:16 BIST #xx:3,@aa:32 BAND #xx:3,Rd BAND #xx:3,@ERd BAND #xx:3,@aa:8 BAND #xx:3,@aa:16 BAND #xx:3,@aa:32 BIAND #xx:3,Rd BIAND #xx:3,@ERd BIAND #xx:3,@aa:8 BIAND #xx:3,@aa:16 BIAND #xx:3,@aa:32 BOR #xx:3,Rd BOR #xx:3,@ERd B B B 2 4 B B B 4 4 6 8 B 2 B 8 B 6 B 4 B 4 B 2 B 8 B 6 B 4 C(#xx:3 of @aa:8) C(#xx:3 of @aa:16) C(#xx:3 of @aa:32) C(#xx:3 of Rd8)C C(#xx:3 of @ERd)C C(#xx:3 of @aa:8)C B 4 C(#xx:3 of @ERd) B 2 B 8 B 6 BST BIST BAND BIAND Operand Size #xx Rn @ERn @(d,ERn) @-ERn/@ERn+ @aa @(d,PC) @@aa -- C[ (#xx:3 of @aa:8)]C C[ (#xx:3 of @aa:16)]C C[ (#xx:3 of @aa:32)]C C(#xx:3 of Rd8)C C(#xx:3 of @ERd)C ---------- ---------- ---------- ---------- ---------- 3 4 5 1 3 BOR 1123 Operand Size #xx Rn @ERn @(d,ERn) @-ERn/@ERn+ @aa @(d,PC) @@aa -- BIXOR #xx:3,@aa:32 B 8 C[ (#xx:3 of @aa:32)]C ---------- C(#xx:3 of @aa:8)C C(#xx:3 of @aa:16)C C(#xx:3 of @aa:32)C C[ (#xx:3 of Rd8)]C 4 4 6 8 2 4 4 6 8 2 4 4 6 C[ (#xx:3 of @ERd)]C C[ (#xx:3 of @aa:8)]C C[ (#xx:3 of @aa:16)]C C[ (#xx:3 of @aa:32)]C C(#xx:3 of Rd8)C C(#xx:3 of @ERd)C C(#xx:3 of @aa:8)C C(#xx:3 of @aa:16)C C(#xx:3 of @aa:32)C C[ (#xx:3 of Rd8)]C C[ (#xx:3 of @ERd)]C C[ (#xx:3 of @aa:8)]C C[ (#xx:3 of @aa:16)]C ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- 1124 Addressing Mode/ Instruction Length (Bytes) Condition Code Operation IHNZVC Mnemonic BOR #xx:3,@aa:8 BOR #xx:3,@aa:16 BOR #xx:3,@aa:32 BIOR #xx:3,Rd BIOR #xx:3,@ERd BIOR #xx:3,@aa:8 BIOR #xx:3,@aa:16 BIOR #xx:3,@aa:32 BXOR #xx:3,Rd BXOR #xx:3,@ERd BXOR #xx:3,@aa:8 BXOR #xx:3,@aa:16 BXOR #xx:3,@aa:32 BIXOR #xx:3,Rd BIXOR #xx:3,@ERd BIXOR #xx:3,@aa:8 BIXOR #xx:3,@aa:16 B B B B B B B B B B B B B B 2 B 8 B 6 B 4 3 4 5 1 3 3 4 5 1 3 3 4 5 1 3 3 4 5 No. of States*1 Advanced BOR BIOR BXOR BIXOR (6) Branch Instructions Addressing Mode/ Instruction Length (Bytes) Operation Branching Condition Condition Code IHNZVC ------------ ------------ Never ------------ ------------ CZ=0 ------------ ------------ CZ=1 ------------ ------------ C=0 ------------ ------------ C=1 ------------ ------------ No. of States*1 Advanced 2 3 2 3 2 3 2 3 2 3 2 3 Mnemonic BRA d:8(BT d:8) BRA d:16(BT d:16) BRN d:8(BF d:8) BRN d:16(BF d:16) BHI d:8 BHI d:16 BLS d:8 BLS d:16 BCC d:B(BHS d:8) BCC d:16(BHS d:16) BCS d:8(BLO d:8) BCS d:16(BLO d:16) BNE d:8 BNE d:16 BEQ d:8 BEQ d:16 BVC d:8 BVC d:16 -- -- -- -- -- -- -- 4 2 4 2 4 2 4 V=0 Z=1 Z=0 -- 2 -- 4 -- 2 -- 4 -- 2 -- 4 -- 2 -- 4 -- 2 else next; -- 4 PCPC+d -- 2 if condition is true then Always Bcc Operand Size #xx Rn @ERn @(d,ERn) @-ERn/@ERn+ @aa @(d,PC) @@aa -- ------------ ------------ ------------ ------------ ------------ ------------ 2 3 2 3 2 3 1125 Mnemonic BVS d:8 BVS d:16 BPL d:8 BPL d:16 BMI d:8 BMI d:16 BGE d:8 BGE d:16 BLT d:8 BLT d:16 BGT d:8 BGT d:16 BLE d:8 BLE d:16 -- -- 2 4 -- 4 -- 2 -- 4 -- 2 -- 4 NV=1 -- 2 -- 4 NV=0 -- 2 -- 4 N=1 -- 2 else next; N=0 -- 4 PCPC+d -- 2 if condition is true then V=1 Operand Size #xx Rn @ERn @(d,ERn) @-ERn/@ERn+ @aa @(d,PC) @@aa -- 1126 Addressing Mode/ Instruction Length (Bytes) Operation Branching Condition Condition Code IHNZVC ------------ ------------ ------------ ------------ ------------ ------------ ------------ ------------ ------------ ------------ Z(NV)=0 -- -- -- -- -- -- ------------ Z(NV)=1 -- -- -- -- -- -- ------------ No. of States*1 Advanced 2 3 2 3 2 3 2 3 2 3 2 3 2 3 Bcc Addressing Mode/ Instruction Length (Bytes) Condition Code Operation PCERn IHNZVC ------------ ------------ ------------ ------------ ------------ ------------ ------------ ------------ ------------ No. of States*1 Advanced 2 3 5 4 5 4 5 6 5 Mnemonic JMP @ERn JMP @aa:24 JMP @@aa:8 BSR d:8 BSR d:16 JSR @ERn JSR @aa:24 JSR @@aa:8 RTS -- -- 2 2 PC@SP+ -- 4 -- 2 -- 4 PC@-SP,PCERn PC@-SP,PCaa:24 PC@-SP,PC@aa:8 -- 2 PC@-SP,PCPC+d:8 PC@-SP,PCPC+d:16 -- 2 PC@aa:8 -- 4 PCaa:24 -- 2 JMP BSR JSR RTS Operand Size #xx Rn @ERn @(d,ERn) @-ERn/@ERn+ @aa @(d,PC) @@aa -- 1127 Operand Size #xx Rn @ERn @(d,ERn) @-ERn/@ERn+ @aa @(d,PC) @@aa -- PC@SP+ SLEEP LDC LDC #xx:8,EXR LDC Rs,CCR LDC Rs,EXR LDC @ERs,CCR LDC @ERs,EXR LDC @(d:16,ERs),CCR LDC @(d:16,ERs),EXR LDC @(d:32,ERs),CCR LDC @(d:32,ERs),EXR LDC @ERs+,CCR LDC @ERs+,EXR LDC @aa:16,CCR LDC @aa:16,EXR LDC @aa:32,CCR LDC @aa:32,EXR W W W W W W W 10 4 4 6 6 8 8 W 10 W 6 W 6 W 4 W 4 B 2 B 2 Rs8CCR Rs8EXR @ERsCCR @ERsEXR @(d:16,ERs)CCR @(d:16,ERs)EXR @(d:32,ERs)CCR @(d:32,ERs)EXR @ERsCCR,ERs32+2ERs32 @ERsEXR,ERs32+2ERs32 @aa:16CCR @aa:16EXR @aa:32CCR @aa:32EXR B4 #xx:8EXR LDC #xx:8,CCR B2 #xx:8CCR SLEEP -- Transition to power-down state ------------ 2 ------------ ------------ ------------ ------------ ------------ 1128 (7) System Control Instructions Addressing Mode/ Instruction Length (Bytes) Condition Code Operation PC@-SP,CCR@-SP, EXR@-SP, No. of States*1 Advanced 8 [9] Mnemonic TRAPA EXR@SP+,CCR@SP+, TRAPA #xx:2 -- RTE RTE -- 5 [9] 1 2 1 1 3 3 4 4 6 6 4 ------------ 4 4 ------------ 4 5 ------------ 5 Addressing Mode/ Instruction Length (Bytes) Condition Code Operation CCRRd8 EXRRd8 IHNZVC ------------ ------------ ------------ ------------ ------------ ------------ ------------ ------------ No. of States*1 Advanced 1 1 3 3 4 4 6 6 4 Mnemonic STC CCR,Rd STC EXR,Rd STC CCR,@ERd STC EXR,@ERd STC CCR,@(d:16,ERd) STC EXR,@(d:16,ERd) STC CCR,@(d:32,ERd) STC EXR,@(d:32,ERd) STC CCR,@-ERd STC EXR,@-ERd STC CCR,@aa:16 STC EXR,@aa:16 STC CCR,@aa:32 STC EXR,@aa:32 ANDC #xx:8,CCR ANDC #xx:8,EXR ORC #xx:8,CCR ORC #xx:8,EXR XORC #xx:8,CCR XORC #xx:8,EXR NOP B4 B2 B4 -- B2 B4 B2 W 8 W 8 W 6 W 6 W 4 W 4 W 10 W 10 W 6 EXR@(d:16,ERd) CCR@(d:32,ERd) EXR@(d:32,ERd) W 6 CCR@(d:16,ERd) W 4 EXR@ERd W 4 CCR@ERd B 2 B 2 STC Operand Size #xx Rn @ERn @(d,ERn) @-ERn/@ERn+ @aa @(d,PC) @@aa -- ERd32-2ERd32,CCR@ERd -- -- -- -- -- -- ERd32-2ERd32,EXR@ERd CCR@aa:16 EXR@aa:16 CCR@aa:32 EXR@aa:32 CCR#xx:8CCR EXR#xx:8EXR CCR#xx:8CCR EXR#xx:8EXR CCR#xx:8CCR EXR#xx:8EXR 2 PCPC+2 ------------ ------------ ------------ ------------ ------------ 4 4 4 5 5 1 ------------ 2 1 ------------ 2 1 ------------ ------------ 2 1 ANDC ORC XORC 1129 NOP Operand Size #xx Rn @ERn @(d,ERn) @-ERn/@ERn+ @aa @(d,PC) @@aa -- 1130 (8) Block Transfer Instructions Addressing Mode/ Instruction Length (Bytes) Condition Code Operation IHNZVC ------------ No. of States*1 Advanced 4+2n *2 Mnemonic EEPMOV EEPMOV.B -- 4 if R4L0 Repeat @ER5@ER6 ER5+1ER5 ER6+1ER6 R4L-1R4L Until R4L=0 else next; 4 if R40 Repeat @ER5@ER6 ER5+1ER5 ER6+1ER6 R4-1R4 Until R4=0 else next; EEPMOV.W -- ------------ 4+2n *2 Notes: *1 *2 *3 [1] [2] [3] [4] [5] [6] [7] [8] [9] The number of states is the number of states required for execution when the instruction and its operands are located in on-chip memory. n is the initial value of R4L or R4. When using the TAS instruction, use register ER0, ER1, ER4, or ER5. Seven states for saving or restoring two registers, nine states for three registers, or eleven states for four registers. Cannot be used in the H8S/2633 Series. Set to 1 when a carry or borrow occurs at bit 11; otherwise cleared to 0. Set to 1 when a carry or borrow occurs at bit 27; otherwise cleared to 0. Retains its previous value when the result is zero; otherwise cleared to 0. Set to 1 when the divisor is negative; otherwise cleared to 0. Set to 1 when the divisor is zero; otherwise cleared to 0. Set to 1 when the quotient is negative; otherwise cleared to 0. One additional state is required for execution when EXR is valid. A.2 Instruction Codes Table A-2 shows the instruction codes. 1131 1132 Mnemonic Size 1st byte 8 rd 8 rd rd rd 0 erd IMM IMM 9 9 A A B B B rd E rd IMM rs rd rd rd 0 erd 0 IMM 4 1 rd 0 7 0 0 disp 0 disp 1 8 1 0 disp 0 disp 7 6 6 0 IMM 0 IMM abs abs 0 0 7 6 0 IMM 0 7 6 0 IMM 0 0 6 0 IMM 0 erd abs 1 3 IMM 6 6 0 ers 0 erd IMM IMM 6 rs 6 F rd 6 9 6 A 1 6 1 6 C E A A 0 8 rs IMM 9 0 erd 8 0 erd 0 0 erd 1 ers 0 erd 1 rs 1 rs 0 7 0 7 0 0 0 0 9 0 E 1 7 6 7 0 0 0 7 7 7 6 6 4 5 4 5 IMM 2nd byte 3rd byte 4th byte 5th byte 6th byte 7th byte 8th byte B B W W L L L L L B B B B W W L L B B B B B B B -- -- -- -- ADD.B #xx:8,Rd ADD.B Rs,Rd ADD.W #xx:16,Rd ADD.W Rs,Rd ADD.L #xx:32,ERd ADD.L ERs,ERd ADDS #1,ERd ADDS #2,ERd ADDS #4,ERd ADDX #xx:8,Rd ADDX Rs,Rd AND.B #xx:8,Rd AND.B Rs,Rd AND.W #xx:16,Rd AND.W Rs,Rd AND.L #xx:32,ERd AND.L ERs,ERd ANDC #xx:8,CCR ANDC #xx:8,EXR BAND #xx:3,Rd BAND #xx:3,@ERd BAND #xx:3,@aa:8 BAND #xx:3,@aa:16 BAND #xx:3,@aa:32 BRA d:8 (BT d:8) BRA d:16 (BT d:16) BRN d:8 (BF d:8) BRN d:16 (BF d:16) Instruction Format 9th byte Table A-2 Instruction Codes 10th byte Instruction ADD ADDS ADDX AND ANDC BAND Bcc Instruction Mnemonic Size 1st byte 4 2 8 2 disp 3 disp 4 disp 5 disp 6 disp 7 disp 8 disp 9 disp A disp B disp C disp D disp E disp F 8 0 disp 0 disp 0 disp 0 disp 0 disp 0 disp 0 disp 0 disp 0 disp 0 disp 0 disp 0 disp 0 disp 3 8 4 8 5 8 6 8 7 8 8 8 9 8 A 8 B 8 C 8 D 8 E 8 F 0 disp 5 4 5 4 5 4 5 4 5 4 5 4 5 4 5 4 5 4 5 4 5 4 5 4 5 4 5 disp 2nd byte 3rd byte 4th byte 5th byte 6th byte 7th byte 8th byte 9th byte -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- BHI d:8 BHI d:16 BLS d:8 BLS d:16 BCC d:8 (BHS d:8) BCC d:16 (BHS d:16) BCS d:8 (BLO d:8) BCS d:16 (BLO d:16) BNE d:8 BNE d:16 BEQ d:8 BEQ d:16 BVC d:8 BVC d:16 BVS d:8 BVS d:16 BPL d:8 BPL d:16 BMI d:8 BMI d:16 BGE d:8 BGE d:16 BLT d:8 BLT d:16 BGT d:8 BGT d:16 BLE d:8 BLE d:16 Instruction Format 10th byte Bcc 1133 1134 Mnemonic Size 1st byte 7 2 rd 0 7 2 0 0 7 2 0 7 2 0 IMM 0 abs 0 IMM 2 abs 0 IMM 7 8 8 rd 0 6 2 rn 0 0 6 2 rn 6 0 2 rn 0 abs rn abs 2 6 8 8 rd 0 7 6 0 0 7 6 abs 1 IMM 0 7 6 1 IMM 0 6 abs 1 IMM 7 0 0 rd 0 7 7 0 0 7 abs 7 1 IMM 0 7 7 1 IMM 0 7 abs 1 IMM 7 0 0 rd 0 7 7 0 0 4 4 1 IMM 1 IMM abs abs 0 0 7 4 1 IMM 0 7 4 1 IMM 0 1 IMM 1 IMM 0 IMM D F A 1 3 rn 0 erd abs 1 3 1 IMM 0 erd abs 1 3 1 IMM 0 erd abs 1 3 1 IMM 0 erd abs 1 3 A 2 D F A A 6 C E A A 7 C E A A 4 C E A A abs 0 erd 7 7 6 6 6 7 7 6 6 7 7 7 6 6 7 7 7 6 6 7 7 7 6 6 0 IMM 2nd byte 3rd byte 4th byte 5th byte 6th byte 7th byte 8th byte 9th byte B B B B B B B B B B B B B B B B B B B B B B B B B BCLR #xx:3,Rd BCLR #xx:3,@ERd BCLR #xx:3,@aa:8 BCLR #xx:3,@aa:16 BCLR #xx:3,@aa:32 BCLR Rn,Rd BCLR Rn,@ERd BCLR Rn,@aa:8 BCLR Rn,@aa:16 BCLR Rn,@aa:32 BIAND #xx:3,Rd BIAND #xx:3,@ERd BIAND #xx:3,@aa:8 BIAND #xx:3,@aa:16 BIAND #xx:3,@aa:32 BILD #xx:3,Rd BILD #xx:3,@ERd BILD #xx:3,@aa:8 BILD #xx:3,@aa:16 BILD #xx:3,@aa:32 BIOR #xx:3,Rd BIOR #xx:3,@ERd BIOR #xx:3,@aa:8 BIOR #xx:3,@aa:16 BIOR #xx:3,@aa:32 Instruction Format Instruction 10th byte BCLR BIAND BILD BIOR Instruction Mnemonic Size 1st byte 6 7 rd 0 6 7 0 0 6 7 0 6 7 1 IMM 0 abs 1 IMM 7 abs 1 IMM 6 8 8 rd 0 7 5 0 0 7 5 0 7 5 1 IMM 0 abs 1 IMM 5 abs 1 IMM 7 0 0 rd 0 7 7 0 0 7 7 abs 0 IMM 0 7 7 0 IMM 0 7 abs 0 IMM 7 0 0 rd 0 7 1 0 0 7 abs 1 0 IMM 0 7 1 0 IMM 0 1 abs 0 IMM 7 8 8 rd 0 6 6 8 8 1 1 abs abs rn rn 0 0 6 1 rn 0 6 1 rn 0 0 IMM 0 IMM 1 IMM 1 IMM D F A 1 3 1 IMM 0 erd abs 1 3 0 IMM 0 erd abs 1 3 0 IMM 0 erd abs 1 3 rn 0 erd abs 1 3 A 5 C E A A 7 C E A A 1 D F A A 1 D F A A abs 0 erd 7 7 6 6 7 7 7 6 6 7 7 7 6 6 7 7 7 6 6 6 7 7 6 6 1 IMM 2nd byte 3rd byte 4th byte 5th byte 6th byte 7th byte 8th byte 9th byte B B B B B B B B B B B B B B B B B B B B B B B B B BIST #xx:3,Rd BIST #xx:3,@ERd BIST #xx:3,@aa:8 BIST #xx:3,@aa:16 BIST #xx:3,@aa:32 BIXOR #xx:3,Rd BIXOR #xx:3,@ERd BIXOR #xx:3,@aa:8 BIXOR #xx:3,@aa:16 BIXOR #xx:3,@aa:32 BLD #xx:3,Rd BLD #xx:3,@ERd BLD #xx:3,@aa:8 BLD #xx:3,@aa:16 BLD #xx:3,@aa:32 BNOT #xx:3,Rd BNOT #xx:3,@ERd BNOT #xx:3,@aa:8 BNOT #xx:3,@aa:16 BNOT #xx:3,@aa:32 BNOT Rn,Rd BNOT Rn,@ERd BNOT Rn,@aa:8 BNOT Rn,@aa:16 BNOT Rn,@aa:32 Instruction Format 10th byte BIST BIXOR BLD BNOT 1135 1136 Mnemonic Size 1st byte 7 4 rd 0 7 4 0 0 7 4 0 7 4 0 IMM 0 abs 0 IMM 4 abs 0 IMM 7 0 0 rd 0 7 0 0 0 7 0 0 7 0 0 IMM 0 abs 0 IMM 0 abs 0 IMM 7 8 8 rd 0 6 0 rn 0 0 6 0 abs rn 0 6 0 rn 0 rn abs 0 6 8 8 disp 0 0 rd 0 6 7 7 abs abs 0 IMM 6 8 8 rd 0 7 7 0 0 rn 0 erd C rd 0 6 3 rn 0 3 3 0 IMM 0 IMM abs abs 3 0 0 7 3 0 IMM 0 7 3 0 IMM 0 0 IMM 0 0 6 7 0 IMM 0 6 7 0 IMM 0 0 IMM 0 erd abs 1 3 0 IMM 0 erd abs 1 disp 0 IMM 0 IMM C E A 1 3 0 IMM 0 erd abs 1 3 rn 0 erd abs 1 3 A 0 D F A A 0 D F A A 5 C 7 D F A A 3 C E A A 3 abs 0 erd 7 7 6 6 7 7 7 6 6 6 7 7 6 6 5 5 6 7 7 6 6 7 7 7 6 6 6 7 0 IMM 2nd byte 3rd byte 4th byte 5th byte 6th byte 7th byte 8th byte 9th byte B B B B B B B B B B B B B B B -- -- B B B B B B B B B B B B BOR #xx:3,Rd BOR #xx:3,@ERd BOR #xx:3,@aa:8 BOR #xx:3,@aa:16 BOR #xx:3,@aa:32 BSET #xx:3,Rd BSET #xx:3,@ERd BSET #xx:3,@aa:8 BSET #xx:3,@aa:16 BSET #xx:3,@aa:32 BSET Rn,Rd BSET Rn,@ERd BSET Rn,@aa:8 BSET Rn,@aa:16 BSET Rn,@aa:32 BSR d:8 BSR d:16 BST #xx:3,Rd BST #xx:3,@ERd BST #xx:3,@aa:8 BST #xx:3,@aa:16 BST #xx:3,@aa:32 BTST #xx:3,Rd BTST #xx:3,@ERd BTST #xx:3,@aa:8 BTST #xx:3,@aa:16 BTST #xx:3,@aa:32 BTST Rn,Rd BTST Rn,@ERd Instruction Format Instruction 10th byte BOR BSET BSR BST BTST Instruction Mnemonic Size 1st byte 7 E 6 3 rn 0 6 abs 6 3 rn 0 3 rn 0 abs 0 0 rd 0 7 5 0 0 7 abs 7 5 5 0 IMM 0 0 IMM 0 5 abs 0 IMM 7 0 0 0 IMM rs rd rd rd 0 erd IMM IMM 2 rs 2 1 ers 0 erd 0 rd rd rd rd rd 0 erd 0 erd 0 0 rd 0 erd C D 4 5 5 9 9 8 8 F F 5 5 1 3 rs rs rd 0 erd 0 0 5 D 7 F D D rs rs 5 0 IMM A 1 3 0 IMM 0 erd abs 1 3 A A 5 C E A A 1 rd C 9 D A F F F A B B B B 1 1 1 3 B B abs 6 6 7 7 7 6 6 0 A 1 7 1 7 1 0 1 1 1 1 1 1 0 0 5 5 7 7 2nd byte 3rd byte 4th byte 5th byte 6th byte 7th byte 8th byte 9th byte B B B B B B B B -- B B W W L L B B B W W L L B W B W -- -- BTST Rn,@aa:8 BTST Rn,@aa:16 BTST Rn,@aa:32 BXOR #xx:3,Rd BXOR #xx:3,@ERd BXOR #xx:3,@aa:8 BXOR #xx:3,@aa:16 BXOR #xx:3,@aa:32 Instruction Format 10th byte BTST BXOR CLRMAC CLRMAC CMP.B #xx:8,Rd CMP.B Rs,Rd CMP.W #xx:16,Rd CMP.W Rs,Rd CMP.L #xx:32,ERd CMP.L ERs,ERd DAA Rd DAS Rd DEC.B Rd DEC.W #1,Rd DEC.W #2,Rd DEC.L #1,ERd DEC.L #2,ERd DIVXS.B Rs,Rd DIVXS.W Rs,ERd DIVXU.B Rs,Rd DIVXU.W Rs,ERd CMP DAA DAS DEC DIVXS DIVXU EEPMOV EEPMOV.B EEPMOV.W 1137 1138 Mnemonic Size 1st byte 1 7 D rd 0 erd rd 0 erd rd rd rd 0 erd 0 erd 0 abs abs 0 ern 0 abs abs IMM 4 1 0 7 rs rs 0 6 9 9 F F 8 7 0 1 4 4 0 1 6 6 6 6 8 D D B B 6 6 6 7 1 0 1 0 1 0 ers 0 ers 0 ers 0 ers 0 ers 0 ers 0 ers 0 ers 4 0 0 0 0 0 0 0 0 0 0 0 0 abs abs 1 6 6 B B disp disp 2 2 0 0 disp disp 0 1 4 4 4 4 4 4 4 IMM F 5 7 0 5 D 7 F 0 ern 7 7 7 A B B B B 9 A B D E F 7 1 3 3 1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 5 5 5 5 5 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2nd byte 3rd byte 4th byte 5th byte 6th byte 7th byte 8th byte 9th byte W L W L B W W L L -- -- -- -- -- -- B B B B W W W W W W W W W W EXTS.W Rd EXTS.L ERd EXTU.W Rd EXTU.L ERd INC.B Rd INC.W #1,Rd INC.W #2,Rd INC.L #1,ERd INC.L #2,ERd JMP @ERn JMP @aa:24 JMP @@aa:8 JSR @ERn JSR @aa:24 JSR @@aa:8 LDC #xx:8,CCR LDC #xx:8,EXR LDC Rs,CCR LDC Rs,EXR LDC @ERs,CCR LDC @ERs,EXR LDC @(d:16,ERs),CCR LDC @(d:16,ERs),EXR LDC @(d:32,ERs),CCR LDC @(d:32,ERs),EXR LDC @ERs+,CCR LDC @ERs+,EXR LDC @aa:16,CCR LDC @aa:16,EXR Instruction Format Instruction 10th byte EXTS EXTU INC JMP JSR LDC Instruction Mnemonic Size 1st byte 0 1 4 0 6 B 2 2 7e 7 7 0 ern+3 0 ern+2 0 ern+1 0 abs B D D D 6 6 6 6 1 0 0 0 0 ers 0 ers 0 6 D IMM rs rd rd rd 0 6 A 2 rd rd disp disp 0 ers 0 ers 0 ers 0 ers abs 0 rd rd rs rs 0 6 A rs A disp rs disp abs 2 1 erd 1 erd 0 erd 1 erd abs 8 rs rs rd rd rd 0 ers F 8 0 ers rd 0 6 B disp 2 rd disp IMM A 0 rs 0 ers abs abs abs 0 erm 0 erm 4 1 2 3 2 3 6 1 1 1 1 3 3 1 rd C 8 E 8 C rd A A 8 E 8 C rs A A 9 D 9 0 0 0 0 0 0 0 0 F 0 6 6 7 6 2 6 6 6 6 7 6 3 6 6 7 0 6 6 7 abs 2nd byte 3rd byte 4th byte 5th byte 6th byte 7th byte 8th byte 9th byte W W L L L L L -- B B B B B B B B B B B B B B B B W W W W W LDC @aa:32,CCR LDC @aa:32,EXR LDM.L @SP+, (ERn-ERn+1) LDM.L @SP+, (ERn-ERn+2) LDM.L @SP+, (ERn-ERn+3) LDMAC ERs,MACH LDMAC ERs,MACL MAC @ERn+,@ERm+ MOV.B #xx:8,Rd MOV.B Rs,Rd MOV.B @ERs,Rd MOV.B @(d:16,ERs),Rd MOV.B @(d:32,ERs),Rd MOV.B @ERs+,Rd MOV.B @aa:8,Rd MOV.B @aa:16,Rd MOV.B @aa:32,Rd MOV.B Rs,@ERd MOV.B Rs,@(d:16,ERd) MOV.B Rs,@(d:32,ERd) MOV.B Rs,@-ERd MOV.B Rs,@aa:8 MOV.B Rs,@aa :16 MOV.B Rs,@aa:32 MOV.W #xx:16,Rd MOV.W Rs,Rd MOV.W @ERs,Rd MOV.W @(d:16,ERs),Rd MOV.W @(d:32,ERs),Rd Instruction Format 10th byte LDC LDM LDMAC MAC MOV 1139 1140 Mnemonic Size 1st byte 6 D rd rd rd rs rs 0 6 B A rs rs rs rs 0 erd IMM abs abs disp disp abs abs B 0 2 1 erd 1 erd 0 erd 1 erd 8 A 0 1 ers 0 erd 0 0 6 9 F 8 0 6 B D B 0 2 1 erd 0 ers 1 erd 0 ers 0 erd 0 6 B disp A 0 ers disp 0 erd B 9 F 8 D B B 0 erd 0 ers 0 erd abs abs 0 ers 0 ers 0 erd disp 2 0 erd disp 6 7 6 6 6 6 6 7 6 6 6 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ers 0 erd B 9 F 8 D B B A F 1 1 1 1 1 1 1 1 1 1 1 1 6 6 6 6 7 6 6 6 7 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ers 2nd byte 3rd byte 4th byte 5th byte 6th byte 7th byte 8th byte 9th byte W W W W W W W W W L L L L L L L L L L L L L L B B B 0 1 C C rs rs 1 0 2 0 5 5 W B W 0 0 rd 0 erd 5 5 0 2 rs rs rd 0 erd MOV.W @ERs+,Rd MOV.W @aa:16,Rd MOV.W @aa:32,Rd MOV.W Rs,@ERd MOV.W Rs,@(d:16,ERd) MOV.W Rs,@(d:32,ERd) MOV.W Rs,@-ERd MOV.W Rs,@aa:16 MOV.W Rs,@aa:32 MOV.L #xx:32,Rd MOV.L ERs,ERd MOV.L @ERs,ERd MOV.L @(d:16,ERs),ERd MOV.L @(d:32,ERs),ERd MOV.L @ERs+,ERd MOV.L @aa:16 ,ERd MOV.L @aa:32 ,ERd MOV.L ERs,@ERd MOV.L ERs,@(d:16,ERd) MOV.L ERs,@(d:32,ERd)*1 MOV.L ERs,@-ERd MOV.L ERs,@aa:16 MOV.L ERs,@aa:32 Instruction Format 1 erd 0 ers 8 A 0 ers 0 ers abs abs Cannot be used in the H8S/2633 Series MULXS.B Rs,Rd MULXS.W Rs,ERd MULXU.B Rs,Rd MULXU.W Rs,ERd Instruction 10th byte MOV MOVFPE MOVFPE @aa:16,Rd MOVTPE MOVTPE Rs,@aa:16 MULXS MULXU Instruction Mnemonic Size 1st byte 1 7 8 rd rd 0 erd 0 rd rd 0 erd IMM rs rd rd rd 0 erd 0 IMM 4 1 rn 0 rn 0 rd rd rd rd 0 erd 0 erd 6 D F 0 ern 6 D 7 0 ern 7 0 F 0 8 C 9 D B F 0 4 IMM 6 4 0 ers 0 erd IMM IMM 4 rs 4 F 9 B 0 0 1 3 7 7 0 7 7 7 rd 4 9 4 A 1 4 1 D 1 D 1 2 2 2 2 2 2 1 1 0 1 1 1 C 1 7 6 7 0 0 0 6 0 6 0 1 1 1 1 1 1 2nd byte 3rd byte 4th byte 5th byte 6th byte 7th byte 8th byte 9th byte B W L -- B W L B B W W L L B B W L W L B B W W L L NEG.B Rd NEG.W Rd NEG.L ERd NOP NOT.B Rd NOT.W Rd NOT.L ERd OR.B #xx:8,Rd OR.B Rs,Rd OR.W #xx:16,Rd OR.W Rs,Rd OR.L #xx:32,ERd OR.L ERs,ERd ORC #xx:8,CCR ORC #xx:8,EXR POP.W Rn POP.L ERn PUSH.W Rn PUSH.L ERn ROTL.B Rd ROTL.B #2, Rd ROTL.W Rd ROTL.W #2, Rd ROTL.L ERd ROTL.L #2, ERd Instruction Format 10th byte NEG NOP NOT OR ORC POP PUSH ROTL 1141 1142 Mnemonic Size 1st byte 1 3 8 rd rd rd rd 0 erd 0 erd rd rd rd rd 0 erd 0 erd rd rd rd rd 0 erd 0 erd 0 0 rd rd rd rd 0 erd 0 erd C 9 D B F 0 4 1 5 3 7 0 4 1 5 3 7 7 7 8 C 9 D B F 3 3 3 3 3 2 2 2 2 2 2 3 3 3 3 3 3 6 4 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 5 5 1 1 1 1 1 1 2nd byte 3rd byte 4th byte 5th byte 6th byte 7th byte 8th byte 9th byte B B W W L L B B W W L L B B W W L L -- -- B B W W L L ROTR.B Rd ROTR.B #2, Rd ROTR.W Rd ROTR.W #2, Rd ROTR.L ERd ROTR.L #2, ERd ROTXL.B Rd ROTXL.B #2, Rd ROTXL.W Rd ROTXL.W #2, Rd ROTXL.L ERd ROTXL.L #2, ERd ROTXR.B Rd ROTXR.B #2, Rd ROTXR.W Rd ROTXR.W #2, Rd ROTXR.L ERd ROTXR.L #2, ERd RTE RTS SHAL.B Rd SHAL.B #2, Rd SHAL.W Rd SHAL.W #2, Rd SHAL.L ERd SHAL.L #2, ERd Instruction Format Instruction 10th byte ROTR ROTXL ROTXR RTE RTS SHAL Instruction Mnemonic Size 1st byte 1 1 8 rd rd rd rd 0 erd 0 erd rd rd rd rd 0 erd 0 erd rd rd rd rd 0 erd 0 erd 0 rd rd 0 1 0 1 0 1 4 1 4 0 1 6 6 6 7 7 4 6 1 6 6 9 9 F F 8 8 D D 1 erd 1 erd 1 erd 1 erd 0 erd 0 erd 1 erd 1 erd 0 0 0 0 0 0 0 0 6 6 B B disp disp A A 0 0 disp disp C 9 D B F 0 4 1 5 3 7 0 4 1 5 3 7 8 0 1 4 4 4 4 4 1 1 1 1 1 0 0 0 0 0 0 1 1 1 1 1 1 1 2 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 2nd byte 3rd byte 4th byte 5th byte 6th byte 7th byte 8th byte 9th byte B B W W L L B B W W L L B B W W L L -- B B W W SHAR.B Rd SHAR.B #2, Rd SHAR.W Rd SHAR.W #2, Rd SHAR.L ERd SHAR.L #2, ERd SHLL.B Rd SHLL.B #2, Rd SHLL.W Rd SHLL.W #2, Rd SHLL.L ERd SHLL.L #2, ERd SHLR.B Rd SHLR.B #2, Rd SHLR.W Rd SHLR.W #2, Rd SHLR.L ERd SHLR.L #2, ERd SLEEP STC.B CCR,Rd STC.B EXR,Rd STC.W CCR,@ERd STC.W EXR,@ERd STC.W CCR,@(d:16,ERd) W STC.W EXR,@(d:16,ERd) W STC.W CCR,@(d:32,ERd) W STC.W EXR,@(d:32,ERd) W STC.W CCR,@-ERd W W STC.W EXR,@-ERd Instruction Format 10th byte SHAR SHLL SHLR SLEEP STC 1143 1144 Mnemonic Size 1st byte 0 1 4 0 6 B 8 0 0 0 0 0 ern 0 ern 0 ern abs abs abs 8 A A F F F B B B D D D 6 6 6 6 6 6 1 0 1 0 0 0 0 ers 0 ers rd rd rd 0 erd IMM IMM 4 4 4 1 2 3 2 3 rs 3 rs 3 1 ers 0 erd 0 8 9 IMM rs rd 0 7 B 0 0 erd C E 00 IMM IMM rs rd rd rd 0 erd 0 6 5 IMM 0 ers 0 erd F IMM 5 rs 5 0 erd 0 erd 0 erd 1 1 1 1 1 1 2 2 8 9 9 A A B B B rd E 1 7 rd 5 9 5 A 1 0 0 0 0 0 0 0 0 1 7 1 7 1 1 1 1 B 1 0 5 D 1 7 6 7 0 abs 2nd byte 3rd byte 4th byte 5th byte 6th byte 7th byte 8th byte 9th byte W W W W L L L L L B W W L L L L L B B B -- B B W W L L STC.W CCR,@aa:16 STC.W EXR,@aa:16 STC.W CCR,@aa:32 STC.W EXR,@aa:32 STM.L(ERn-ERn+1), @-SP STM.L (ERn-ERn+2), @-SP STM.L (ERn-ERn+3), @-SP STMAC MACH,ERd STMAC MACL,ERd SUB.B Rs,Rd SUB.W #xx:16,Rd SUB.W Rs,Rd SUB.L #xx:32,ERd SUB.L ERs,ERd SUBS #1,ERd SUBS #2,ERd SUBS #4,ERd SUBX #xx:8,Rd SUBX Rs,Rd TAS @ERd TRAPA #x:2 XOR.B #xx:8,Rd XOR.B Rs,Rd XOR.W #xx:16,Rd XOR.W Rs,Rd XOR.L #xx:32,ERd XOR.L ERs,ERd Instruction Format Instruction 10th byte STC STM STMAC SUB SUBS SUBX TAS*2 TRAPA XOR Instruction Mnemonic Size 1st byte 0 0 1 4 1 0 5 IMM 5 IMM 2nd byte 3rd byte 4th byte 5th byte 6th byte 7th byte 8th byte 9th byte B B XORC #xx:8,CCR XORC #xx:8,EXR Instruction Format 10th byte XORC Notes: *1 Bit 7 of the 4th byte of the MOV.L ERs, @(d:32,ERd) instruction can be either 1 or 0. *2 When using the TAS instruction, use register ER0, ER1, ER4, or ER5. Legend IMM: abs: disp: rs, rd, rn: ers, erd, ern, erm: Immediate data (2, 3, 8, 16, or 32 bits) Absolute address (8, 16, 24, or 32 bits) Displacement (8, 16, or 32 bits) Register field (4 bits specifying an 8-bit or 16-bit register. The symbols rs, rd, and rn correspond to operand symbols Rs, Rd,and Rn.) Register field (3 bits specifying an address register or 32-bit register. The symbols ers, erd, ern, and erm correspond to operand symbols ERs, ERd, ERn, and ERm.) The register fields specify general registers as follows. 16-Bit Register Register Field 0000 0001 * * * 0111 1000 1001 * * * 1111 R0 R1 * * * R7 E0 E1 * * * E7 0000 0001 * * * 0111 1000 1001 * * * 1111 General Register Register Field 8-Bit Register General Register R0H R1H * * * R7H R0L R1L * * * R7L Address Register 32-Bit Register General Register ER0 ER1 * * * ER7 Register Field 000 001 * * * 111 1145 A.3 1146 Instruction when most significant bit of BH is 0. 1st byte AH AL BH BL Instruction when most significant bit of BH is 1. 2nd byte AL 0 1 ORC XORC XOR MOV.B AND Table A.3(2) SUB ANDC OR LDC ADD 2 3 5 6 8 NOP Table A.3(2) 4 7 9 A B C MOV CMP D E ADDX SUBX F LDC Table STC * * A.3(2) STMAC LDMAC Table Table Table A.3(2) A.3(2) A.3(2) Table A.3(2) Table A.3(2) Table A.3(2) Table A.3(2) Table A.3(2) Table A.3(2) BRA BRN DIVXU OR MOV XOR AND BST MOV Table A.3(2) BNOT BCLR BTST MULXU DIVXU RTS BSR RTE TRAPA Table A.3(2) BHI BLS BCS BNE MULXU BSET BCC BEQ BVC BVS BPL JMP BMI BGE BSR MOV EEPMOV Table A.3(3) BLT BGT JSR BLE BIST BXOR BAND BOR BLD BIXOR BIAND BIOR BILD ADD ADDX CMP SUBX OR XOR AND MOV Table A.3(2) Table A.3(2) Table A-3 Operation Code Map (1) Instruction code AH 0 Operation Code Map 1 Table A-3 shows the operation code map. 2 3 4 5 6 7 8 9 A B C D E F Note: * Cannot be used in the H8S/2633 Series. Table A-3 Operation Code Map (2) 1st byte AH AL BH BL 2nd byte Instruction code BH 0 1 3 STM STC LDC MAC* SLEEP CLRMAC * 4 LDM 2 MOV INC ADDS DAA SHLL SHLL SHLR ROTXL ROTXR NOT EXTU EXTU ROTXR ROTXL SHLR SHAR ROTL ROTR NEG NEG SHLR ROTXL ROTXR NOT DEC SUBS DAS BRA BRN BLS BCC Table * A.3(4) MOVFPE SUB SUB OR OR XOR XOR AND AND Table A.3(4) MOV CMP CMP ADD ADD BHI MOV MOV MOV BCS BNE BEQ BVC MOV BVS BPL MOV BMI DEC DEC SUBS SHLL SHAL INC ADDS INC 5 9 A 6 7 8 B 01 AH AL C Table A.3(3) ADD D Table A.3(3) E TAS F Table A.3(3) 0A 0B INC MOV SHAL SHAR ROTL ROTR EXTS SUB DEC CMP BGE MOVTPE* BLT BGT INC 0F 10 11 12 13 17 SHAL SHAR ROTL ROTR EXTS 1A 1B DEC 1F 58 BLE 6A 79 7A Note: * Cannot be used in the H8S/2633 Series. 1147 1148 1st byte AH AL BH BL CH CL DH DL 2nd byte 3rd byte 4th byte Instruction when most significant bit of DH is 0. Instruction when most significant bit of DH is 1. CL 0 1 3 4 5 6 7 8 9 A MULXS DIVXS DIVXS OR BTST BTST BSET BCLR BCLR BTST BTST BSET BCLR BCLR BSET BNOT BNOT BSET BNOT BNOT XOR AND 2 MULXS B C D E F BXOR BAND BLD BOR BIXOR BIAND BILD BIOR BST BIST BXOR BAND BLD BOR BIXOR BIAND BILD BIOR BST BIST Table A-3 Operation Code Map (3) Instruction code AH AL BH BL CH 01C05 01D05 01F06 7Cr06 *1 7Cr07 *1 7Dr06 *1 7Dr07 *1 7Eaa6 *2 7Eaa7 *2 7Faa6 *2 7Faa7 *2 Notes: *1 r is the register specification field. *2 aa is the absolute address specification. Table A-3 Operation Code Map (4) 1st byte AH AL BH BL CH CL DH DL EH EL FH FL Instruction when most significant bit of FH is 0. Instruction when most significant bit of FH is 1. EL 0 4 5 6 7 8 9 A BTST BOR BXOR BAND BLD BIOR BIXOR BIAND BILD BST BIST 1 2 3 B C D E F 2nd byte 3rd byte 4th byte 5th byte 6th byte Instruction code AHALBHBLCHCLDHDLEH 6A10aaaa6* 6A10aaaa7* 6A18aaaa6* BSET BNOT BCLR 6A18aaaa7* Instruction code AH AL BH BL CH CL DH DL EH 1st byte 2nd byte 3rd byte 4th byte 5th byte EL 6th byte FH FL 7th byte GH GL 8th byte HH HL Instruction when most significant bit of HH is 0. Instruction when most significant bit of HH is 1. GL 0 4 BTST 1 2 3 5 AHALBHBL ... FHFLGH 6 7 8 9 A B C D E F 6A30aaaaaaaa6* 6A30aaaaaaaa7* 6A38aaaaaaaa6* BSET BNOT BCLR BOR BXOR BAND BLD BIOR BIXOR BIAND BILD BST BIST 6A38aaaaaaaa7* Note: * aa is the absolute address specification. 1149 A.4 Number of States Required for Instruction Execution The tables in this section can be used to calculate the number of states required for instruction execution by the CPU. Table A-5 indicates the number of instruction fetch, data read/write, and other cycles occurring in each instruction. Table A-4 indicates the number of states required for each cycle. The number of states required for execution of an instruction can be calculated from these two tables as follows: Execution states = I x SI + J x SJ + K x SK + L xS L + M x SM + N x SN Examples: Advanced mode, program code and stack located in external memory, on-chip supporting modules accessed in two states with 8-bit bus width, external devices accessed in three states with one wait state and 16-bit bus width. 1. BSET #0, @FFFFC7:8 From table A-5: I = L = 2, J = K = M = N = 0 From table A-4: S I = 4, SL = 2 Number of states required for execution = 2 x 4 + 2 x 2 = 12 2. JSR @@30 From table A-5: I = J = K = 2, L = M = N = 0 From table A-4: S I = SJ = SK = 4 Number of states required for execution = 2 x 4 + 2 x 4 + 2 x 4 = 24 1150 Table A-4 Number of States per Cycle Access Conditions On-Chip Supporting Module External Device 8-Bit Bus 16-Bit Bus Cycle Instruction fetch SI On-Chip 8-Bit Memory Bus 1 4 16-Bit Bus 2 2-State 3-State 2-State 3-State Access Access Access Access 4 6 + 2m 2 3+m Branch address read SJ Stack operation Byte data access Word data access Internal operation SK SL SM SN 1 2 4 1 1 2 4 1 3+m 6 + 2m 1 1 1 Legend m: Number of wait states inserted into external device access 1151 Table A-5 Number of Cycles in Instruction Execution Branch Byte Instruction Address Stack Data Fetch Read Operation Access Word Data Access M Internal Operation N Instruction ADD Mnemonic ADD.B #xx:8,Rd ADD.B Rs,Rd ADD.W #xx:16,Rd ADD.W Rs,Rd ADD.L #xx:32,ERd ADD.L ERs,ERd I 1 1 2 1 3 1 1 1 1 1 1 2 1 3 2 1 2 1 2 2 3 4 2 2 2 2 2 2 2 2 2 2 2 J K L ADDS ADDX ADDS #1/2/4,ERd ADDX #xx:8,Rd ADDX Rs,Rd AND AND.B #xx:8,Rd AND.B Rs,Rd AND.W #xx:16,Rd AND.W Rs,Rd AND.L #xx:32,ERd AND.L ERs,ERd ANDC ANDC #xx:8,CCR ANDC #xx:8,EXR BAND BAND #xx:3,Rd BAND #xx:3,@ERd BAND #xx:3,@aa:8 BAND #xx:3,@aa:16 BAND #xx:3,@aa:32 1 1 1 1 Bcc BRA d:8 (BT d:8) BRN d:8 (BF d:8) BHI d:8 BLS d:8 BCC d:8 (BHS d:8) BCS d:8 (BLO d:8) BNE d:8 BEQ d:8 BVC d:8 BVS d:8 BPL d:8 1152 Branch Byte Instruction Address Stack Data Fetch Read Operation Access Instruction Bcc Mnemonic BMI d:8 BGE d:8 BLT d:8 BGT d:8 BLE d:8 BRA d:16 (BT d:16) BRN d:16 (BF d:16) BHI d:16 BLS d:16 BCC d:16 (BHS d:16) BCS d:16 (BLO d:16) BNE d:16 BEQ d:16 BVC d:16 BVS d:16 BPL d:16 BMI d:16 BGE d:16 BLT d:16 BGT d:16 BLE d:16 BCLR BCLR #xx:3,Rd BCLR #xx:3,@ERd BCLR #xx:3,@aa:8 BCLR #xx:3,@aa:16 BCLR #xx:3,@aa:32 BCLR Rn,Rd BCLR Rn,@ERd BCLR Rn,@aa:8 BCLR Rn,@aa:16 BCLR Rn,@aa:32 I 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 1 2 2 3 4 1 2 2 3 4 2 2 2 2 2 2 2 2 J K L Word Data Access M Internal Operation N 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1153 Branch Byte Instruction Address Stack Data Fetch Read Operation Access Instruction BIAND Mnemonic BIAND #xx:3,Rd BIAND #xx:3,@ERd BIAND #xx:3,@aa:8 BIAND #xx:3,@aa:16 BIAND #xx:3,@aa:32 BILD BILD #xx:3,Rd BILD #xx:3,@ERd BILD #xx:3,@aa:8 BILD #xx:3,@aa:16 BILD #xx:3,@aa:32 BIOR BIOR #xx:8,Rd BIOR #xx:8,@ERd BIOR #xx:8,@aa:8 BIOR #xx:8,@aa:16 BIOR #xx:8,@aa:32 BIST BIST #xx:3,Rd BIST #xx:3,@ERd BIST #xx:3,@aa:8 BIST #xx:3,@aa:16 BIST #xx:3,@aa:32 BIXOR BIXOR #xx:3,Rd BIXOR #xx:3,@ERd BIXOR #xx:3,@aa:8 BIXOR #xx:3,@aa:16 BIXOR #xx:3,@aa:32 BLD BLD #xx:3,Rd BLD #xx:3,@ERd BLD #xx:3,@aa:8 BLD #xx:3,@aa:16 BLD #xx:3,@aa:32 I 1 2 2 3 4 1 2 2 3 4 1 2 2 3 4 1 2 2 3 4 1 2 2 3 4 1 2 2 3 4 1 1 1 1 1 1 1 1 2 2 2 2 1 1 1 1 1 1 1 1 1 1 1 1 J K L Word Data Access M Internal Operation N 1154 Branch Byte Instruction Address Stack Data Fetch Read Operation Access Instruction BNOT Mnemonic BNOT #xx:3,Rd BNOT #xx:3,@ERd BNOT #xx:3,@aa:8 BNOT #xx:3,@aa:16 BNOT #xx:3,@aa:32 BNOT Rn,Rd BNOT Rn,@ERd BNOT Rn,@aa:8 BNOT Rn,@aa:16 BNOT Rn,@aa:32 BOR BOR #xx:3,Rd BOR #xx:3,@ERd BOR #xx:3,@aa:8 BOR #xx:3,@aa:16 BOR #xx:3,@aa:32 BSET BSET #xx:3,Rd BSET #xx:3,@ERd BSET #xx:3,@aa:8 BSET #xx:3,@aa:16 BSET #xx:3,@aa:32 BSET Rn,Rd BSET Rn,@ERd BSET Rn,@aa:8 BSET Rn,@aa:16 BSET Rn,@aa:32 BSR BSR d:8 BSR d:16 BST BST #xx:3,Rd BST #xx:3,@ERd BST #xx:3,@aa:8 BST #xx:3,@aa:16 BST #xx:3,@aa:32 I 1 2 2 3 4 1 2 2 3 4 1 2 2 3 4 1 2 2 3 4 1 2 2 3 4 2 2 1 2 2 3 4 2 2 2 2 2 2 2 2 2 2 2 2 2 2 1 1 1 1 2 2 2 2 2 2 2 2 J K L Word Data Access M Internal Operation N 1 1155 Branch Byte Instruction Address Stack Data Fetch Read Operation Access Instruction BTST Mnemonic BTST #xx:3,Rd BTST #xx:3,@ERd BTST #xx:3,@aa:8 BTST #xx:3,@aa:16 BTST #xx:3,@aa:32 BTST Rn,Rd BTST Rn,@ERd BTST Rn,@aa:8 BTST Rn,@aa:16 BTST Rn,@aa:32 BXOR BXOR #xx:3,Rd BXOR #xx:3,@ERd BXOR #xx:3,@aa:8 BXOR #xx:3,@aa:16 BXOR #xx:3,@aa:32 CLRMAC CMP CLRMAC CMP.B #xx:8,Rd CMP.B Rs,Rd CMP.W #xx:16,Rd CMP.W Rs,Rd CMP.L #xx:32,ERd CMP.L ERs,ERd DAA DAS DEC DAA Rd DAS Rd DEC.B Rd DEC.W #1/2,Rd DEC.L #1/2,ERd DIVXS DIVXS.B Rs,Rd DIVXS.W Rs,ERd DIVXU DIVXU.B Rs,Rd DIVXU.W Rs,ERd I 1 2 2 3 4 1 2 2 3 4 1 2 2 3 4 1 1 1 2 1 3 1 1 1 1 1 1 2 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 J K L Word Data Access M Internal Operation N 1*3 11 19 11 19 1156 Branch Byte Instruction Address Stack Data Fetch Read Operation Access Instruction EEPMOV Mnemonic EEPMOV.B EEPMOV.W EXTS EXTS.W Rd EXTS.L ERd EXTU EXTU.W Rd EXTU.L ERd INC INC.B Rd INC.W #1/2,Rd INC.L #1/2,ERd JMP JMP @ERn JMP @aa:24 JMP @@aa:8 JSR JSR @ERn JSR @aa:24 JSR @@aa:8 LDC LDC #xx:8,CCR LDC #xx:8,EXR LDC Rs,CCR LDC Rs,EXR LDC @ERs,CCR LDC @ERs,EXR LDC @(d:16,ERs),CCR LDC @(d:16,ERs),EXR LDC @(d:32,ERs),CCR LDC @(d:32,ERs),EXR LDC @ERs+,CCR LDC @ERs+,EXR LDC @aa:16,CCR LDC @aa:16,EXR LDC @aa:32,CCR LDC @aa:32,EXR I 2 2 1 1 1 1 1 1 1 2 2 2 2 2 2 1 2 1 1 2 2 3 3 5 5 2 2 3 3 4 4 2 2 2 2 2 J K L 2n+2*2 2n+2*2 Word Data Access M Internal Operation N 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1157 Branch Byte Instruction Address Stack Data Fetch Read Operation Access Instruction LDM Mnemonic LDM.L @SP+, (ERn-ERn+1) LDM.L @SP+, (ERn-ERn+2) LDM.L @SP+, (ERn-ERn+3) LDMAC LDMAC ERs,MACH LDMAC ERs,MACL MAC MOV MAC @ERn+,@ERm+ MOV.B #xx:8,Rd MOV.B Rs,Rd MOV.B @ERs,Rd MOV.B @(d:16,ERs),Rd MOV.B @(d:32,ERs),Rd MOV.B @ERs+,Rd MOV.B @aa:8,Rd MOV.B @aa:16,Rd MOV.B @aa:32,Rd MOV.B Rs,@ERd MOV.B Rs,@(d:16,ERd) MOV.B Rs,@(d:32,ERd) MOV.B Rs,@-ERd MOV.B Rs,@aa:8 MOV.B Rs,@aa:16 MOV.B Rs,@aa:32 MOV.W #xx:16,Rd MOV.W Rs,Rd MOV.W @ERs,Rd MOV.W @(d:16,ERs),Rd MOV.W @(d:32,ERs),Rd MOV.W @ERs+,Rd MOV.W @aa:16,Rd MOV.W @aa:32,Rd MOV.W Rs,@ERd I 2 2 2 1 1 2 1 1 1 2 4 1 1 2 3 1 2 4 1 1 2 3 2 1 1 2 4 1 2 3 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 J K 4 6 8 L Word Data Access M Internal Operation N 1 1 1 1*3 1*3 2 1 1 1 1 1 1 1 1 1 1 1158 Branch Byte Instruction Address Stack Data Fetch Read Operation Access Instruction MOV Mnemonic MOV.W Rs,@(d:16,ERd) MOV.W Rs,@(d:32,ERd) MOV.W Rs,@-ERd MOV.W Rs,@aa:16 MOV.W Rs,@aa:32 MOV.L #xx:32,ERd MOV.L ERs,ERd MOV.L @ERs,ERd MOV.L @(d:16,ERs),ERd MOV.L @(d:32,ERs),ERd MOV.L @ERs+,ERd MOV.L @aa:16,ERd MOV.L @aa:32,ERd MOV.L ERs,@ERd MOV.L ERs,@(d:16,ERd) MOV.L ERs,@(d:32,ERd) MOV.L ERs,@-ERd MOV.L ERs,@aa:16 MOV.L ERs,@aa:32 MOVFPE MOVTPE MULXS MOVFPE @:aa:16,Rd MOVTPE Rs,@:aa:16 MULXS.B Rs,Rd MULXS.W Rs,ERd MULXU MULXU.B Rs,Rd MULXU.W Rs,ERd NEG NEG.B Rd NEG.W Rd NEG.L ERd NOP NOT NOP NOT.B Rd NOT.W Rd NOT.L ERd 2 2 1 1 1 1 1 1 1 1 1 I 2 4 1 2 3 3 1 2 3 5 2 3 4 2 3 5 2 3 4 Can not be used in the H8S/2633 Series J K L Word Data Access M 1 1 1 1 1 Internal Operation N 1 2 2 2 2 2 2 2 2 2 2 2 2 1 1 2*3 3*3 2*3 3*3 1159 Branch Byte Instruction Address Stack Data Fetch Read Operation Access Instruction OR Mnemonic OR.B #xx:8,Rd OR.B Rs,Rd OR.W #xx:16,Rd OR.W Rs,Rd OR.L #xx:32,ERd OR.L ERs,ERd ORC ORC #xx:8,CCR ORC #xx:8,EXR POP POP.W Rn POP.L ERn PUSH PUSH.W Rn PUSH.L ERn ROTL ROTL.B Rd ROTL.B #2,Rd ROTL.W Rd ROTL.W #2,Rd ROTL.L ERd ROTL.L #2,ERd ROTR ROTR.B Rd ROTR.B #2,Rd ROTR.W Rd ROTR.W #2,Rd ROTR.L ERd ROTR.L #2,ERd ROTXL ROTXL.B Rd ROTXL.B #2,Rd ROTXL.W Rd ROTXL.W #2,Rd ROTXL.L ERd ROTXL.L #2,ERd I 1 1 2 1 3 2 1 2 1 2 1 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 J K L Word Data Access M Internal Operation N 1 2 1 2 1 1 1 1 1160 Branch Byte Instruction Address Stack Data Fetch Read Operation Access Instruction ROTXR Mnemonic ROTXR.B Rd ROTXR.B #2,Rd ROTXR.W Rd ROTXR.W #2,Rd ROTXR.L ERd ROTXR.L #2,ERd RTE RTS SHAL RTE RTS SHAL.B Rd SHAL.B #2,Rd SHAL.W Rd SHAL.W #2,Rd SHAL.L ERd SHAL.L #2,ERd SHAR SHAR.B Rd SHAR.B #2,Rd SHAR.W Rd SHAR.W #2,Rd SHAR.L ERd SHAR.L #2,ERd SHLL SHLL.B Rd SHLL.B #2,Rd SHLL.W Rd SHLL.W #2,Rd SHLL.L ERd SHLL.L #2,ERd SHLR SHLR.B Rd SHLR.B #2,Rd SHLR.W Rd SHLR.W #2,Rd SHLR.L ERd SHLR.L #2,ERd SLEEP SLEEP I 1 1 1 1 1 1 2 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2/3*1 2 J K L Word Data Access M Internal Operation N 1 1 1 1161 Branch Byte Instruction Address Stack Data Fetch Read Operation Access Instruction STC Mnemonic STC.B CCR,Rd STC.B EXR,Rd STC.W CCR,@ERd STC.W EXR,@ERd I 1 1 2 2 J K L Word Data Access M Internal Operation N 1 1 1 1 1 1 1 1 1 1 1 1 4 6 8 1 1 1 *3 *3 1 1 STC.W CCR,@(d:16,ERd) 3 STC.W EXR,@(d:16,ERd) 3 STC.W CCR,@(d:32,ERd) 5 STC.W EXR,@(d:32,ERd) 5 STC.W CCR,@-ERd STC.W EXR,@-ERd STC.W CCR,@aa:16 STC.W EXR,@aa:16 STC.W CCR,@aa:32 STC.W EXR,@aa:32 STM STM.L (ERn-ERn+1), @-SP STM.L (ERn-ERn+2), @-SP STM.L (ERn-ERn+3), @-SP STMAC STMAC MACH,ERd STMAC MACL,ERd SUB SUB.B Rs,Rd SUB.W #xx:16,Rd SUB.W Rs,Rd SUB.L #xx:32,ERd SUB.L ERs,ERd SUBS SUBX SUBS #1/2/4,ERd SUBX #xx:8,Rd SUBX Rs,Rd TAS* 4 2 2 3 3 4 4 2 2 2 1 1 1 2 1 3 1 1 1 1 2 2 2 2/3* 1 TAS @ERd TRAPA #x:2 2 2 TRAPA 1162 Branch Byte Instruction Address Stack Data Fetch Read Operation Access Instruction XOR Mnemonic XOR.B #xx:8,Rd XOR.B Rs,Rd XOR.W #xx:16,Rd XOR.W Rs,Rd XOR.L #xx:32,ERd XOR.L ERs,ERd XORC XORC #xx:8,CCR XORC #xx:8,EXR I 1 1 2 1 3 2 1 2 J K L Word Data Access M Internal Operation N Notes: *1 2 when EXR is invalid, 3 when EXR is valid. *2 When n bytes of data are transferred. *3 An internal operation may require between 0 and 3 additional states, depending on the preceding instruction. *4 When using the TAS instruction, use register ER0, ER1, ER4, or ER5. 1163 A.5 Bus States During Instruction Execution Table A-6 indicates the types of cycles that occur during instruction execution by the CPU. See table A-4 for the number of states per cycle. How to Read the Table: Order of execution Instruction JMP@aa:24 1 R:W 2nd 2 3 4 5 6 7 8 Internal operation, R:W EA 1 state End of instruction Read effective address (word-size read) No read or write Read 2nd word of current instruction (word-size read) Legend R:B R:W W:B W:W :M 2nd 3rd 4th 5th NEXT EA VEC Byte-size read Word-size read Byte-size write Word-size write Transfer of the bus is not performed immediately after this cycle Address of 2nd word (3rd and 4th bytes) Address of 3rd word (5th and 6th bytes) Address of 4th word (7th and 8th bytes) Address of 5th word (9th and 10th bytes) Address of next instruction Effective address Vector address 1164 Figure A-1 shows timing waveforms for the address bus and the RD, HWR, and LWR signals during execution of the above instruction with an 8-bit bus, using three-state access with no wait states. o Address bus RD HWR, LWR High level R:W 2nd Fetching 3rd byte of instruction Fetching 4th byte of instruction Internal operation R:W EA Fetching 1nd byte of instruction at jump address Fetching 2nd byte of instruction at jump address Figure A-1 Address Bus, RD, HWR, and LWR Timing (8-Bit Bus, Three-State Access, No Wait States) 1165 1166 Table A-6 Instruction Execution Cycles 2 3 4 5 6 7 8 9 R:W NEXT R:W 3rd R:W NEXT R:W NEXT R:W 3rd R:W NEXT R:W NEXT R:B EA R:B EA R:W 3rd R:W 3rd R:W EA R:W EA R:W EA R:W EA R:W EA R:W EA R:W EA R:W EA R:W EA R:W EA R:W EA R:W EA R:W EA R:W EA R:W EA R:W:M NEXT R:W:M NEXT R:B EA R:W:M NEXT R:W 4th R:B EA R:W:M NEXT R:W NEXT Instruction ADD.B #xx:8,Rd ADD.B Rs,Rd ADD.W #xx:16,Rd ADD.W Rs,Rd ADD.L #xx:32,ERd ADD.L ERs,ERd ADDS #1/2/4,ERd ADDX #xx:8,Rd ADDX Rs,Rd AND.B #xx:8,Rd AND.B Rs,Rd AND.W #xx:16,Rd AND.W Rs,Rd AND.L #xx:32,ERd AND.L ERs,ERd ANDC #xx:8,CCR ANDC #xx:8,EXR BAND #xx:3,Rd BAND #xx:3,@ERd BAND #xx:3,@aa:8 BAND #xx:3,@aa:16 BAND #xx:3,@aa:32 BRA d:8 (BT d:8) BRN d:8 (BF d:8) BHI d:8 BLS d:8 BCC d:8 (BHS d:8) BCS d:8 (BLO d:8) BNE d:8 BEQ d:8 BVC d:8 BVS d:8 BPL d:8 BMI d:8 BGE d:8 BLT d:8 BGT d:8 1 R:W NEXT R:W NEXT R:W 2nd R:W NEXT R:W 2nd R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W 2nd R:W NEXT R:W 2nd R:W 2nd R:W NEXT R:W 2nd R:W NEXT R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT 3 R:W EA R:W EA R:W EA R:W EA R:W EA R:W EA R:W EA R:W EA R:W EA R:W EA R:W EA R:W EA R:W EA R:W EA R:W EA R:W EA Instruction BLE d:8 BRA d:16 (BT d:16) R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W NEXT R:W 2nd R:W 2nd R:W 2nd 1 R:W NEXT R:W 2nd 4 5 6 7 8 9 BRN d:16 (BF d:16) BHI d:16 BLS d:16 BCC d:16 (BHS d:16) BCS d:16 (BLO d:16) BNE d:16 BEQ d:16 BVC d:16 BVS d:16 BPL d:16 BMI d:16 BGE d:16 BLT d:16 BGT d:16 BLE d:16 2 R:W EA Internal operation, 1 state Internal operation, 1 state Internal operation, 1 state Internal operation, 1 state Internal operation, 1 state Internal operation, 1 state Internal operation, 1 state Internal operation, 1 state Internal operation, 1 state Internal operation, 1 state Internal operation, 1 state Internal operation, 1 state Internal operation, 1 state Internal operation, 1 state Internal operation, 1 state Internal operation, 1 state R:B:M EA R:B:M EA R:W 3rd R:W:M NEXT W:B EA R:W:M NEXT W:B EA R:B:M EA R:W:M NEXT W:B EA BCLR #xx:3,Rd BCLR #xx:3,@ERd BCLR #xx:3,@aa:8 BCLR #xx:3,@aa:16 1167 1168 2 R:W 3rd R:B:M EA R:B:M EA R:W 3rd R:W 3rd R:B EA R:B EA R:W 3rd R:W 3rd R:B EA R:B EA R:W 3rd R:W 3rd R:B EA R:B EA R:W 3rd R:W 3rd R:B:M EA R:B:M EA R:W 3rd R:W 3rd R:B EA R:B EA R:W 3rd R:W 3rd R:B EA R:B EA R:W 3rd R:W 3rd R:W:M NEXT R:W:M NEXT R:B:M EA R:W 4th R:W:M NEXT R:W:M NEXT R:B EA R:W:M NEXT R:W 4th R:B EA R:W:M NEXT W:B EA W:B EA R:W:M NEXT W:B EA R:B:M EA R:W:M NEXT W:B EA R:W:M NEXT R:W:M NEXT R:B EA R:W:M NEXT R:W 4th R:B EA R:W:M NEXT R:W:M NEXT R:W:M NEXT R:B EA R:W:M NEXT R:W 4th R:B EA R:W:M NEXT R:W:M NEXT R:W:M NEXT R:B:M EA R:W 4th W:B EA W:B EA R:W:M NEXT W:B EA R:B:M EA R:W:M NEXT W:B EA 3 R:W 4th 4 R:B:M EA 5 6 R:W:M NEXT W:B EA 7 8 9 R:W:M NEXT R:W:M NEXT R:B EA R:W:M NEXT R:W 4th R:B EA R:W:M NEXT R:W:M NEXT R:W:M NEXT R:B EA R:W:M NEXT R:W 4th R:B EA R:W:M NEXT 1 R:W 2nd R:W NEXT R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W NEXT R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W NEXT R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W NEXT R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W NEXT R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W NEXT R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W NEXT R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W NEXT Instruction BCLR #xx:3,@aa:32 BCLR Rn,Rd BCLR Rn,@ERd BCLR Rn,@aa:8 BCLR Rn,@aa:16 BCLR Rn,@aa:32 BIAND #xx:3,Rd BIAND #xx:3,@ERd BIAND #xx:3,@aa:8 BIAND #xx:3,@aa:16 BIAND #xx:3,@aa:32 BILD #xx:3,Rd BILD #xx:3,@ERd BILD #xx:3,@aa:8 BILD #xx:3,@aa:16 BILD #xx:3,@aa:32 BIOR #xx:3,Rd BIOR #xx:3,@ERd BIOR #xx:3,@aa:8 BIOR #xx:3,@aa:16 BIOR #xx:3,@aa:32 BIST #xx:3,Rd BIST #xx:3,@ERd BIST #xx:3,@aa:8 BIST #xx:3,@aa:16 BIST #xx:3,@aa:32 BIXOR #xx:3,Rd BIXOR #xx:3,@ERd BIXOR #xx:3,@aa:8 BIXOR #xx:3,@aa:16 BIXOR #xx:3,@aa:32 BLD #xx:3,Rd BLD #xx:3,@ERd BLD #xx:3,@aa:8 BLD #xx:3,@aa:16 BLD #xx:3,@aa:32 BNOT #xx:3,Rd 2 R:B:M EA R:B:M EA R:W 3rd R:W 3rd R:B:M EA R:B:M EA R:W 3rd R:W 3rd R:B EA R:B EA R:W 3rd R:W 3rd R:B:M EA R:B:M EA R:W 3rd R:W 3rd R:B:M EA R:B:M EA R:W 3rd R:W 3rd R:W EA Internal operation, 1 state R:B:M EA R:B:M EA R:W 3rd R:W 3rd R:B EA R:W:M NEXT R:W:M NEXT R:B:M EA R:W 4th R:W:M NEXT R:W:M NEXT R:W:M NEXT R:B:M EA R:W 4th W:W:M stack (H) R:W EA R:W:M NEXT R:W:M NEXT R:B:M EA R:W 4th W:B EA W:B EA R:W:M NEXT W:B EA R:B:M EA R:W:M NEXT W:B EA W:B EA W:B EA R:W:M NEXT W:B EA R:B:M EA R:W:M NEXT W:B EA W:W stack (L) W:W:M stack (H) W:W stack (L) R:W:M NEXT R:W:M NEXT R:B EA R:W:M NEXT R:W 4th R:B EA R:W:M NEXT R:W:M NEXT R:W:M NEXT R:B:M EA R:W 4th W:B EA W:B EA R:W:M NEXT W:B EA R:B:M EA R:W:M NEXT W:B EA Instruction BNOT #xx:3,@ERd BNOT #xx:3,@aa:8 BNOT #xx:3,@aa:16 BNOT #xx:3,@aa:32 BNOT Rn,Rd BNOT Rn,@ERd BNOT Rn,@aa:8 BNOT Rn,@aa:16 BNOT Rn,@aa:32 BOR #xx:3,Rd BOR #xx:3,@ERd BOR #xx:3,@aa:8 BOR #xx:3,@aa:16 BOR #xx:3,@aa:32 BSET #xx:3,Rd BSET #xx:3,@ERd BSET #xx:3,@aa:8 BSET #xx:3,@aa:16 BSET #xx:3,@aa:32 BSET Rn,Rd BSET Rn,@ERd BSET Rn,@aa:8 BSET Rn,@aa:16 BSET Rn,@aa:32 BSR d:8 BSR d:16 1 R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W NEXT R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W NEXT R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W NEXT R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W NEXT R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W NEXT R:W 2nd 3 R:W:M NEXT R:W:M NEXT R:B:M EA R:W 4th 4 5 6 W:B EA W:B EA R:W:M NEXT W:B EA R:B:M EA R:W:M NEXT W:B EA 7 8 9 BST #xx:3,Rd BST #xx:3,@ERd BST #xx:3,@aa:8 BST #xx:3,@aa:16 BST #xx:3,@aa:32 BTST #xx:3,Rd BTST #xx:3,@ERd R:W NEXT R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W NEXT R:W 2nd W:B EA W:B EA R:W:M NEXT W:B EA R:B:M EA R:W:M NEXT W:B EA 1169 1170 2 R:B EA R:W 3rd R:W 3rd R:B EA R:B EA R:W 3rd R:W 3rd R:B EA R:B EA R:W 3rd R:W 3rd Internal operation, 1 state R:W:M NEXT R:W:M NEXT R:B EA R:W:M NEXT R:W 4th R:B EA R:W:M NEXT R:W:M NEXT R:W:M NEXT R:B EA R:W:M NEXT R:W 4th R:B EA R:W:M NEXT 1 R:W 2nd R:W 2nd R:W 2nd R:W NEXT R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W NEXT R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W NEXT 3 4 5 R:W:M NEXT R:B EA R:W:M NEXT R:W 4th R:B EA R:W:M NEXT 6 7 8 9 R:W NEXT R:W 3rd R:W NEXT R:W NEXT R:W NEXT R:W 2nd R:W NEXT R:W 2nd R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W 2nd R:W 2nd R:W NEXT R:W NEXT R:W 2nd R:W 2nd R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT Internal operation, 11 states R:W NEXT Internal operation, 19 states Internal operation, 11 states Internal operation, 19 states R:B EAd*1 R:B EAs*2 W:B EAd*2 R:B EAs*1 R:B EAd*1 R:B EAs*2 W:B EAd*2 R:B EAs*1 Repeated n times*2 R:W NEXT R:W NEXT Instruction BTST #xx:3,@aa:8 BTST #xx:3,@aa:16 BTST #xx:3,@aa:32 BTST Rn,Rd BTST Rn,@ERd BTST Rn,@aa:8 BTST Rn,@aa:16 BTST Rn,@aa:32 BXOR #xx:3,Rd BXOR #xx:3,@ERd BXOR #xx:3,@aa:8 BXOR #xx:3,@aa:16 BXOR #xx:3,@aa:32 CLRMAC CMP.B #xx:8,Rd CMP.B Rs,Rd CMP.W #xx:16,Rd CMP.W Rs,Rd CMP.L #xx:32,ERd CMP.L ERs,ERd DAA Rd DAS Rd DEC.B Rd DEC.W #1/2,Rd DEC.L #1/2,ERd DIVXS.B Rs,Rd DIVXS.W Rs,ERd DIVXU.B Rs,Rd DIVXU.W Rs,ERd EEPMOV.B EEPMOV.W EXTS.W Rd EXTS.L ERd EXTU.W Rd EXTU.L ERd INC.B Rd Instruction INC.W #1/2,Rd INC.L #1/2,ERd JMP @ERn JMP @aa:24 R:W NEXT R:W NEXT R:W 2nd R:W EA R:W EA Internal operation, R:W EA 1 state R:W:M aa:8 R:W aa:8 1 R:W NEXT R:W NEXT R:W NEXT R:W 2nd 2 3 4 5 6 7 8 9 JMP @@aa:8 JSR @ERn JSR @aa:24 Internal operation, R:W EA 1 state R:W EA W:W:M stack (H) W:W stack (L) Internal operation, R:W EA W:W:M stack (H) W:W stack (L) 1 state R:W:M aa:8 R:W aa:8 W:W:M stack (H) W:W stack (L) R:W NEXT JSR @@aa:8 LDC #xx:8,CCR LDC #xx:8,EXR LDC Rs,CCR LDC Rs,EXR LDC @ERs,CCR LDC @ERs,EXR LDC @(d:16,ERs),CCR LDC @(d:16,ERs),EXR LDC @(d:32,ERs),CCR LDC @(d:32,ERs),EXR LDC @ERs+,CCR R:W NEXT R:W NEXT R:W 3rd R:W 3rd R:W 3rd R:W 3rd R:W NEXT R:W EA R:W EA R:W 5th R:W 5th R:W EA R:W NEXT R:W NEXT R:W EA R:W EA R:W EA R:W NEXT R:W EA R:W NEXT R:W EA R:W:M stack (H)*3 R:W stack (L)*3 R:W:M stack (H)*3 R:W stack (L)*3 R:W:M stack (H)*3 R:W stack (L)*3 Repeated n times *3 R:W EA R:W EA R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W NEXT R:W NEXT R:W NEXT R:W 2nd R:W NEXT R:W NEXT R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W 2nd LDC @ERs+,EXR LDC @aa:16,CCR LDC @aa:16,EXR LDC @aa:32,CCR LDC @aa:32,EXR LDM.L @SP+, (ERn-ERn+1) LDM.L @SP+,(ERn-ERn+2) LDM.L @SP+,(ERn-ERn+3) LDMAC ERs,MACH R:W EA R:W EA R:W NEXT R:W NEXT R:W 4th R:W 4th Internal operation, 1 state R:W NEXT Internal operation, 1 state R:W 3rd R:W NEXT R:W 3rd R:W NEXT R:W 3rd R:W 4th R:W 3rd R:W 4th R:W:M NEXT Internal operation, 1 state R:W NEXT Internal operation, 1 state R:W NEXT Internal operation, 1 state Internal operation, 1 state 1171 1172 1 R:W NEXT R:W EAm 2 3 Internal operation, 1 state R:W NEXT R:W EAh 4 5 6 7 8 9 R:W 2nd R:W NEXT R:W NEXT R:W NEXT R:W 2nd R:W 2nd R:W NEXT R:B EA R:W 4th R:B EA R:W NEXT R:B EA R:B EA R:W NEXT R:B EA R:W NEXT R:W 2nd R:W 2nd R:W NEXT R:W 2nd R:W 2nd R:W NEXT W:B EA R:W 4th W:B EA R:W NEXT W:B EA R:B EA R:W NEXT R:W 3rd Internal operation, 1 state R:B EA R:W NEXT R:W 3rd W:B EA R:W NEXT R:W 3rd Internal operation, 1 state W:B EA R:W NEXT R:W 3rd R:W NEXT W:B EA R:W NEXT W:B EA R:W NEXT R:W 2nd R:W 2nd R:W 2nd R:W NEXT R:W NEXT R:W 2nd R:W 2nd R:W NEXT R:W EA R:W 4th R:W EA R:W EA R:W NEXT R:W NEXT R:W EA R:B EA R:W 2nd R:W 2nd R:W NEXT R:W 2nd R:W 2nd R:W NEXT W:W EA R:E 4th W:W EA W:W EA R:W NEXT R:W 2nd R:W 2nd R:W NEXT W:W EA R:W EA R:W NEXT R:W 3rd Internal operation, 1 state R:W NEXT R:W 3rd W:W EA R:W NEXT R:W 3rd Internal operation, 1 state R:W NEXT R:W 3rd W:W EA Instruction LDMAC ERs,MACL MAC @ERn+,@ERm+ MOV.B #xx:8,Rd MOV.B Rs,Rd MOV.B @ERs,Rd MOV.B @(d:16,ERs),Rd MOV.B @(d:32,ERs),Rd MOV.B @ERs+,Rd MOV.B @aa:8,Rd MOV.B @aa:16,Rd MOV.B @aa:32,Rd MOV.B Rs,@ERd MOV.B Rs,@(d:16,ERd) MOV.B Rs,@(d:32,ERd) MOV.B Rs,@-ERd MOV.B Rs,@aa:8 MOV.B Rs,@aa:16 MOV.B Rs,@aa:32 MOV.W #xx:16,Rd MOV.W Rs,Rd MOV.W @ERs,Rd MOV.W @(d:16,ERs),Rd MOV.W @(d:32,ERs),Rd MOV.W @ERs+, Rd MOV.W @aa:16,Rd MOV.W @aa:32,Rd MOV.W Rs,@ERd MOV.W Rs,@(d:16,ERd) MOV.W Rs,@(d:32,ERd) MOV.W Rs,@-ERd MOV.W Rs,@aa:16 MOV.W Rs,@aa:32 2 R:W 3rd 3 R:W NEXT 4 5 6 7 8 9 Instruction MOV.L #xx:32,ERd MOV.L ERs,ERd MOV.L @ERs,ERd MOV.L @(d:16,ERs),ERd MOV.L @(d:32,ERs),ERd MOV.L @ERs+,ERd R:W:M NEXT R:W:M 3rd R:W:M 3rd R:W:M NEXT R:W EA+2 R:W NEXT R:W EA+2 R:W:M EA R:W EA+2 R:W EA+2 R:W:M EA R:W EA+2 R:W EA+2 R:W:M EA R:W 5th R:W:M EA 1 R:W 2nd R:W NEXT R:W 2nd R:W 2nd R:W 2nd R:W 2nd MOV.L @aa:16,ERd MOV.L @aa:32,ERd MOV.L ERs,@ERd MOV.L ERs,@(d:16,ERd) MOV.L ERs,@(d:32,ERd) MOV.L ERs,@-ERd W:W EA+2 R:W NEXT W:W EA+2 W:W:M EA W:W EA+2 W:W:M EA W:W EA+2 W:W:M EA R:W NEXT R:W:M EA R:W NEXT W:W EA+2 W:W:M EA R:W 5th W:W:M EA R:W:M EA R:W NEXT R:W:M 4th Internal operation, 1 state R:W 2nd R:W:M 3rd R:W NEXT R:W 2nd R:W:M 3rd R:W 4th R:W 2nd R:W:M NEXT W:W:M EA R:W 2nd R:W:M 3rd R:W NEXT R:W 2nd R:W:M 3rd R:W:M 4th R:W 2nd R:W:M NEXT Internal operation, 1 state R:W 2nd R:W:M 3rd R:W NEXT R:W 2nd R:W:M 3rd R:W 4th Cannot be used in the H8S/2633 Series W:W EA+2 R:W NEXT Internal operation, 2 states R:W NEXT Internal operation, 3 states Internal operation, 2 states Internal operation, 3 states R:W NEXT R:W 3rd R:W NEXT R:W NEXT R:W NEXT MOV.L ERs,@aa:16 MOV.L ERs,@aa:32 MOVFPE @aa:16,Rd MOVTPE Rs,@aa:16 MULXS.B Rs,Rd MULXS.W Rs,ERd MULXU.B Rs,Rd MULXU.W Rs,ERd NEG.B Rd NEG.W Rd NEG.L ERd NOP NOT.B Rd NOT.W Rd NOT.L ERd OR.B #xx:8,Rd OR.B Rs,Rd OR.W #xx:16,Rd OR.W Rs,Rd OR.L #xx:32,ERd OR.L ERs,ERd ORC #xx:8,CCR ORC #xx:8,EXR R:W 2nd R:W 2nd R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W 2nd R:W NEXT R:W 2nd R:W 2nd R:W NEXT R:W 2nd 1173 1174 1 R:W NEXT R:W 2nd R:W NEXT R:W 2nd W:W EA+2 R:W EA+2 5 6 7 8 9 2 3 4 Internal operation, R:W EA 1 state R:W:M NEXT Internal operation, R:W:M EA 1 state Internal operation, W:W EA 1 state R:W:M NEXT Internal operation, W:W:M EA 1 state R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W stack (EXR) R:W:M stack (H) R:W stack (H) R:W stack (L) 1 state R:W stack (L) R:W NEXT R:W NEXT Internal operation, R:W*4 1 state Internal operation, R:W*4 Instruction POP.W Rn POP.L ERn PUSH.W Rn PUSH.L ERn ROTL.B Rd ROTL.B #2,Rd ROTL.W Rd ROTL.W #2,Rd ROTL.L ERd ROTL.L #2,ERd ROTR.B Rd ROTR.B #2,Rd ROTR.W Rd ROTR.W #2,Rd ROTR.L ERd ROTR.L #2,ERd ROTXL.B Rd ROTXL.B #2,Rd ROTXL.W Rd ROTXL.W #2,Rd ROTXL.L ERd ROTXL.L #2,ERd ROTXR.B Rd ROTXR.B #2,Rd ROTXR.W Rd ROTXR.W #2,Rd ROTXR.L ERd ROTXR.L #2,ERd RTE RTS SHAL.B Rd 2 3 4 5 6 7 8 9 Internal operation:M Instruction SHAL.B #2,Rd SHAL.W Rd SHAL.W #2,Rd SHAL.L ERd SHAL.L #2,ERd SHAR.B Rd SHAR.B #2,Rd SHAR.W Rd SHAR.W #2,Rd SHAR.L ERd SHAR.L #2,ERd SHLL.B Rd SHLL.B #2,Rd SHLL.W Rd SHLL.W #2,Rd SHLL.L ERd SHLL.L #2,ERd SHLR.B Rd SHLR.B #2,Rd SHLR.W Rd SHLR.W #2,Rd SHLR.L ERd SHLR.L #2,ERd SLEEP STC CCR,Rd STC EXR,Rd STC CCR,@ERd STC EXR,@ERd STC CCR,@(d:16,ERd) STC EXR,@(d:16,ERd) STC CCR,@(d:32,ERd) STC EXR,@(d:32,ERd) STC CCR,@-ERd R:W NEXT R:W NEXT R:W 3rd R:W 3rd R:W 3rd R:W 3rd R:W NEXT W:W EA W:W EA R:W 5th R:W 5th W:W EA 1 R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W NEXT R:W NEXT W:W EA W:W EA STC EXR,@-ERd R:W 2nd R:W 2nd R:W 2nd R:W NEXT R:W 3rd R:W 3rd W:W EA W:W EA W:W EA STC CCR,@aa:16 STC EXR,@aa:16 W:W EA W:W EA R:W NEXT R:W NEXT R:W 4th R:W 4th Internal operation, 1 state Internal operation, 1 state R:W NEXT R:W NEXT 1175 1176 1 R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W 2nd W:W:M stack (H)*3 W:W stack (L)*3 W:W:M stack (H)*3 W:W stack (L)*3 4 5 R:W NEXT W:W EA R:W NEXT W:W EA W:W:M stack (H)*3 W:W stack (L)*3 6 7 8 9 2 3 R:W 3rd R:W 4th R:W 3rd R:W 4th R:W:M NEXT Internal operation, 1 state R:W:M NEXT Internal operation, 1 state R:W:M NEXT Internal operation, 1 state R:W NEXT R:W 3rd R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W 2nd R:W NEXT R:W 2nd R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W 2nd R:W NEXT R:W NEXT R:B:M EA Internal operation, W:W stack (L) 1 state W:B EA W:W stack (H) W:W stack (EXR) R:W:M VEC R:W VEC+2 Internal operation, R:W*7 1 state R:W NEXT R:W 3rd R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W 2nd R:W NEXT R:W 2nd R:W 2nd R:W NEXT R:W 2nd Instruction STC CCR,@aa:32 STC EXR,@aa:32 STM.L(ERn-ERn+1),@-SP STM.L(ERn-ERn+2),@-SP STM.L(ERn-ERn+3),@-SP STMAC MACH,ERd STMAC MACL,ERd SUB.B Rs,Rd SUB.W #xx:16,Rd SUB.W Rs,Rd SUB.L #xx:32,ERd SUB.L ERs,ERd SUBS #1/2/4,ERd SUBX #xx:8,Rd SUBX Rs,Rd TAS @ERd*8 TRAPA #x:2 XOR.B #xx8,Rd XOR.B Rs,Rd XOR.W #xx:16,Rd XOR.W Rs,Rd XOR.L #xx:32,ERd XOR.L ERs,ERd XORC #xx:8,CCR XORC #xx:8,EXR R:W NEXT Instruction Reset exception handling W:W stack (EXR) R:W:M VEC R:W VEC+2 1 R:W VEC 2 R:W VEC+2 5 6 7 8 9 Interrupt exception handling R:W*6 3 4 Internal operation, R:W*5 1 state Internal operation, W:W stack (L) W:W stack (H) 1 state Internal operation, R:W*7 1 state Notes: *1 EAs is the contents of ER5. EAd is the contents of ER6. *2 EAs is the contents of ER5. EAd is the contents of ER6. Both registers are incremented by 1 after execution of the instruction. n is the initial value of R4L or R4. If n = 0, these bus cycles are not executed. *3 Repeated two times to save or restore two registers, three times for three registers, or four times for four registers. *4 Start address after return. *5 Start address of the program. *6 Prefetch address, equal to two plus the PC value pushed onto the stack. In recovery from sleep mode or software standby mode the read operation is replaced by an internal operation. *7 Start address of the interrupt-handling routine. *8 When using the TAS instruction, use register ER0, ER1, ER4, or ER5. 1177 A.6 Condition Code Modification This section indicates the effect of each CPU instruction on the condition code. The notation used in the table is defined below. m= 31 for longword operands 15 for word operands 7 for byte operands Si Di Ri Dn -- The i-th bit of the source operand The i-th bit of the destination operand The i-th bit of the result The specified bit in the destination operand Not affected Modified according to the result of the instruction (see definition) 0 1 * Z' C' Always cleared to 0 Always set to 1 Undetermined (no guaranteed value) Z flag before instruction execution C flag before instruction execution 1178 Table A-7 Instruction ADD Condition Code Modification H N Z V C Definition H = Sm-4 * Dm-4 + Dm-4 * Rm-4 + Sm-4 * Rm-4 N = Rm Z = Rm * Rm-1 * ...... * R0 V = Sm * Dm * Rm + Sm * Dm * Rm C = Sm * Dm + Dm * Rm + Sm * Rm ADDS ADDX ---------- H = Sm-4 * Dm-4 + Dm-4 * Rm-4 + Sm-4 * Rm-4 N = Rm Z = Z' * Rm * ...... * R0 V = Sm * Dm * Rm + Sm * Dm * Rm C = Sm * Dm + Dm * Rm + Sm * Rm AND -- 0 -- N = Rm Z = Rm * Rm-1 * ...... * R0 ANDC Stores the corresponding bits of the result. No flags change when the operand is EXR. BAND Bcc BCLR BIAND BILD BIOR BIST BIXOR BLD BNOT BOR BSET BSR BST BTST BXOR CLRMAC -------- ---------- ---------- -------- -------- -------- ---------- -------- -------- ---------- -------- ---------- ---------- ---------- ---- ---- C = C' * Dn C = C' * Dn C = Dn C = C' + Dn C = C' * Dn + C' * Dn C = Dn C = C' + Dn Z = Dn C = C' * Dn + C' * Dn -------- ---------- 1179 Instruction CMP H N Z V C Definition H = Sm-4 * Dm-4 + Dm-4 * Rm-4 + Sm-4 * Rm-4 N = Rm Z = Rm * Rm-1 * ...... * R0 V = Sm * Dm * Rm + Sm * Dm * Rm C = Sm * Dm + Dm * Rm + Sm * Rm DAA * * N = Rm Z = Rm * Rm-1 * ...... * R0 C: decimal arithmetic carry DAS * * N = Rm Z = Rm * Rm-1 * ...... * R0 C: decimal arithmetic borrow DEC -- -- N = Rm Z = Rm * Rm-1 * ...... * R0 V = Dm * Rm DIVXS -- ---- N = Sm * Dm + Sm * Dm Z = Sm * Sm-1 * ...... * S0 N = Sm Z = Sm * Sm-1 * ...... * S0 DIVXU -- ---- EEPMOV EXTS ---------- -- 0 -- N = Rm Z = Rm * Rm-1 * ...... * R0 Z = Rm * Rm-1 * ...... * R0 N = Rm Z = Rm * Rm-1 * ...... * R0 V = Dm * Rm EXTU INC --0 -- 0 -- -- JMP JSR LDC ---------- ---------- Stores the corresponding bits of the result. No flags change when the operand is EXR. LDM LDMAC MAC ---------- ---------- ---------- 1180 Instruction MOV H -- N Z V 0 C -- Definition N = Rm Z = Rm * Rm-1 * ...... * R0 MOVFPE MOVTPE MULXS -- ---- Can not be used in H8S/2633 Series N = R2m Z = R2m * R2m-1 * ...... * R0 MULXU NEG ---------- H = Dm-4 + Rm-4 N = Rm Z = Rm * Rm-1 * ...... * R0 V = Dm * Rm C = Dm + Rm NOP NOT ---------- -- 0 -- N = Rm Z = Rm * Rm-1 * ...... * R0 OR -- 0 -- N = Rm Z = Rm * Rm-1 * ...... * R0 ORC Stores the corresponding bits of the result. No flags change when the operand is EXR. POP -- 0 -- N = Rm Z = Rm * Rm-1 * ...... * R0 PUSH -- 0 -- N = Rm Z = Rm * Rm-1 * ...... * R0 ROTL -- 0 N = Rm Z = Rm * Rm-1 * ...... * R0 C = Dm (1-bit shift) or C = Dm-1 (2-bit shift) ROTR -- 0 N = Rm Z = Rm * Rm-1 * ...... * R0 C = D0 (1-bit shift) or C = D1 (2-bit shift) 1181 Instruction ROTXL H -- N Z V 0 C Definition N = Rm Z = Rm * Rm-1 * ...... * R0 C = Dm (1-bit shift) or C = Dm-1 (2-bit shift) ROTXR -- 0 N = Rm Z = Rm * Rm-1 * ...... * R0 C = D0 (1-bit shift) or C = D1 (2-bit shift) RTE RTS SHAL ---------- -- Stores the corresponding bits of the result. N = Rm Z = Rm * Rm-1 * ...... * R0 V = Dm * Dm-1 + Dm * Dm-1 (1-bit shift) V = Dm * Dm-1 * Dm-2 * Dm * Dm-1 * Dm-2 (2-bit shift) C = Dm (1-bit shift) or C = Dm-1 (2-bit shift) SHAR -- 0 N = Rm Z = Rm * Rm-1 * ...... * R0 C = D0 (1-bit shift) or C = D1 (2-bit shift) SHLL -- 0 N = Rm Z = Rm * Rm-1 * ...... * R0 C = Dm (1-bit shift) or C = Dm-1 (2-bit shift) SHLR --0 0 N = Rm Z = Rm * Rm-1 * ...... * R0 C = D0 (1-bit shift) or C = D1 (2-bit shift) SLEEP STC STM STMAC ---------- ---------- ---------- -- -- N = 1 if MAC instruction resulted in negative value in MAC register Z = 1 if MAC instruction resulted in zero value in MAC register V = 1 if MAC instruction resulted in overflow 1182 Instruction SUB H N Z V C Definition H = Sm-4 * Dm-4 + Dm-4 * Rm-4 + Sm-4 * Rm-4 N = Rm Z = Rm * Rm-1 * ...... * R0 V = Sm * Dm * Rm + Sm * Dm * Rm C = Sm * Dm + Dm * Rm + Sm * Rm SUBS SUBX ---------- H = Sm-4 * Dm-4 + Dm-4 * Rm-4 + Sm-4 * Rm-4 N = Rm Z = Z' * Rm * ...... * R0 V = Sm * Dm * Rm + Sm * Dm * Rm C = Sm * Dm + Dm * Rm + Sm * Rm TAS* -- 0 -- N = Dm Z = Dm * Dm-1 * ...... * D0 TRAPA XOR ---------- -- 0 -- N = Rm Z = Rm * Rm-1 * ...... * R0 XORC Stores the corresponding bits of the result. No flags change when the operand is EXR. Note: * This instruction should be used with the ER0, ER1, ER4, or ER5 general register only. 1183 Appendix B Internal I/O Register B.1A Addresses (H8S/2633 Series, H8S/2633F, H8S/2633R) Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Module Name D/A2, D/A3 DAOE1 IrE -- DAOE0 IrCKS2 IICX1 SW DA12/ PWME DA4 DA12/ DAE IrCKS1 IICX0 IE -- IrCKS0 IICE IF -- -- FLSHE CLR3 -- -- -- CLR2 DA8/ OEA DA0 DA8/ -- -- -- CLR1 -- -- -- CLR0 SCI0, IrDA 8 IIC IIC 8 8 8 Data Bus Width (bits) 8 Register Address Name H'FDAC DADR2 H'FDAD DADR3 H'FDAE DACR23 H'FDB0 IrCR H'FDB4 SCRX H'FDB5 DDCSWR SWE H'FDB8 DADRAH0/ DA13/ DACR0 TEST H'FDB9 DADRAL0 DA5 H'FDBA DADRBH0/ DA13/ DACNTH0 H'FDBB DADRBL0/ DA5/ DACNTL0 H'FDBC DADRAH1/ DA13/ DACR1 TEST H'FDBD DADRAL1 DA5 H'FDBE DADRBH1/ DA13/ DACNTH1 H'FDBF DADRBL1/ DA5/ DACNTL1 H'FDC0 TCR2 H'FDC1 TCR3 H'FDC2 TCSR2 H'FDC3 TCSR3 H'FDC4 TCORA2 H'FDC5 TCORA3 H'FDC6 TCORB2 H'FDC7 TCORB3 H'FDC8 TCNT2 H'FDC9 TCNT3 H'FDD0 SMR3 SMR3 H'FDD1 BRR3 H'FDD2 SCR3 H'FDD3 TDR3 TIE C/A GM CMIEB CMIEB CMFB CMFB DA11/-- DA10/-- DA9/ OEB DA3 DA11/ DA2 DA10/ DA1 DA9/ DA7/OS DA6/CKS PWM0 CFS DA7/ -- DA6/ DA4/ DA3/ DA2/ DA1/ DA0/ CFS/ REGS DA12/ PWME DA4 DA12/ DA11/-- DA10/-- DA9/OEBDA8/OEADA7/OS DA6/CKS PWM1 8 DA3 DA11/ DA2 DA10/ DA1 DA9/ DA0 DA8/ CFS DA7/ -- DA6/ DA4/ DA3/ DA2/ DA1/ DA0/ CFS/ REGS CMIEA CMIEA CMFA CMFA OVIE OVIE OVF OVF CCLR1 CCLR1 -- -- CCLR0 CCLR0 OS3 OS3 CKS2 CKS2 OS2 OS2 CKS1 CKS1 OS1 OS1 CKS0 CKS0 OS0 OS0 TMR2, TMR3 16 CHR BLK PE PE O/E O/E STOP BCP1 MP BCP0 CKS1 CKS1 CKS0 CKS0 SCI3, 8 Smart card interface RIE TE RE MPIE TEIE CKE1 CKE0 1184 Register Address Name H'FDD4 SSR3 SSR3 H'FDD5 RDR3 H'FDD6 SCMR3 H'FDD8 SMR4 SMR4 H'FDD9 BRR4 H'FDDA SCR4 H'FDDB TDR4 H'FDDC SSR4 SSR4 H'FDDD RDR4 H'FDDE SCMR4 H'FDE4 SBYCR H'FDE5 SYSCR H'FDE6 SCKCR H'FDE7 MDCR Bit 7 TDRE TDRE Bit 6 RDRF RDRF Bit 5 ORER ORER Bit 4 FER ERS Bit 3 PER PER Bit 2 TEND TEND Bit 1 MPB MPB Bit 0 MPBT MPBT Module Name Data Bus Width (bits) SCI3, 8 Smart card interface -- C/A GM -- CHR BLK -- PE PE -- O/E O/E SDIR STOP BCP1 SINV MP BCP0 -- CKS1 CKS1 SMIF CKS0 CKS0 SCI4, 8 Smart card interface TIE RIE TE RE MPIE TEIE CKE1 CKE0 TDRE TDRE RDRF RDRF ORER ORER FER ERS PER PER TEND TEND MPB MPB MPBT MPBT -- SSBY MACS PSTOP -- -- STS2 -- -- -- -- SYS1 INTM1 -- -- -- STS0 INTM0 -- -- SDIR OPE NMIEG STCS -- SINV -- MRESE SCK2 MDS2 -- -- -- SCK1 MDS1 SMIF -- RAME SCK0 MDS0 System 8 H'FDE8 MSTPCRA MSTPA7 MSTPA6 MSTPA5 MSTPA4 MSTPA3 MSTPA2 MSTPA1 MSTPA0 H'FDE9 MSTPCRB MSTPB7 MSTPB6 MSTPB5 MSTPB4 MSTPB3 MSTPB2 MSTPB1 MSTPB0 H'FDEA MSTPCRC MSTPC7 MSTPC6 MSTPC5 MSTPC4 MSTPC3 MSTPC2 MSTPC1 MSTPC0 H'FDEB PFCR CSS07 CSS36 LSON -- BAA22 BAA14 BAA6 -- BAA22 BAA14 BAA6 CDA CDB BUZZE NESEL -- BAA21 BAA13 BAA5 -- BAA21 BAA13 BAA5 LCASS AE3 AE2 -- -- BAA18 BAA10 BAA2 -- BAA18 BAA10 BAA2 AE1 STC1 -- BAA17 BAA9 BAA1 -- BAA17 BAA9 BAA1 AE0 STC0 -- BAA16 BAA8 BAA0 -- BAA16 BAA8 BAA0 PBC 8 H'FDEC LPWRCR DTON H'FE00 BARA H'FE01 H'FE02 H'FE03 H'FE04 BARB H'FE05 H'FE06 H'FE07 H'FE08 BCRA H'FE09 BCRB H'FE12 ISCRH H'FE13 ISCRL H'FE14 IER H'FE15 ISR -- BAA23 BAA15 BAA7 -- BAA23 BAA15 BAA7 CMFA CMFB SUBSTP RFCUT -- BAA20 BAA12 BAA4 -- BAA20 BAA12 BAA4 -- BAA19 BAA11 BAA3 -- BAA19 BAA11 BAA3 BAMRA2 BAMRA1 BAMRA0 CSELA1 CSELA0 BIEA BAMRB2 BAMRB1 BAMRB0 CSELB1 CSELB0 BIEB IRQ7SCB IRQ7SCA IRQ6SCB IRQ6SCA IRQ5SCB IRQ5SCA IRQ4SCB IRQ4SCA Interrupt 8 controller IRQ3SCB IRQ3SCA IRQ2SCB IRQ2SCA IRQ1SCB IRQ1SCA IRQ0SCB IRQ0SCA IRQ7E IRQ7F IRQ6E IRQ6F IRQ5E IRQ5F IRQ4E IRQ4F IRQ3E IRQ3F IRQ2E IRQ2F IRQ1E IRQ1F IRQ0E IRQ0F 1185 Register Address Name H'FE16 DTCERA H'FE17 DTCERB H'FE18 DTCERC H'FE19 DTCERD H'FE1A DTCERE H'FE1B DTCERF H'FE1E DTCERI H'FE1F DTVECR H'FE26 PCR H'FE27 PMR H'FE28 NDERH H'FE29 NDERL H'FE2A PODRH H'FE2B PODRL H'FE2C NDRH H'FE2D NDRL H'FE2E NDRH H'FE2F NDRL H'FE30 P1DDR H'FE32 P3DDR H'FE36 P7DDR H'FE39 PADDR H'FE3A PBDDR H'FE3B PCDDR H'FE3C PDDDR H'FE3D PEDDR H'FE3E PFDDR H'FE3F PGDDR H'FE40 PAPCR H'FE41 PBPCR H'FE42 PCPCR H'FE43 PDPCR H'FE44 PEPCR H'FE46 P3ODR H'FE47 PAODR H'FE48 PBODR H'FE49 PCODR Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Module Name DTC Data Bus Width (bits) 8 DTCEA7 DTCEA6 DTCEA5 DTCEA4 DTCEA3 DTCEA2 DTCEA1 DTCEA0 DTCEB7 DTCEB6 DTCEB5 DTCEB4 DTCEB3 DTCEB2 DTCEB1 DTCEB0 DTCEC7 DTCEC6 DTCEC5 DTCEC4 DTCEC3 DTCEC2 DTCEC1 DTCEC0 DTCED7 DTCED6 DTCED5 DTCED4 DTCED3 DTCED2 DTCED1 DTCED0 DTCEE7 DTCEE6 DTCEE5 DTCEE4 DTCEE3 DTCEE2 DTCEE1 DTCEE0 DTCEF7 DTCEF6 DTCEF5 DTCEF4 DTCEF3 DTCEF2 DTCEF1 DTCEF0 DTCEI7 DTCEI6 DTCEI5 DTCEI4 DTCEI3 DTCEI2 DTCEI1 DTCEI0 SWDTE DTVEC6 DTVEC5 DTVEC4 DTVEC3 DTVEC2 DTVEC1 DTVEC0 G3CMS1 G3CMS0 G2CMS1 G2CMS0 G1CMS1 G1CMS0 G0CMS1 G0CMS0 PPG G3INV G2INV G1INV G0INV G3NOV G2NOV G1NOV G0NOV NDER8 NDER0 POD8 POD0 NDR8 NDR0 NDR8 NDR0 Port 8 NDER15 NDER14 NDER13 NDER12 NDER11 NDER10 NDER9 NDER7 POD15 POD7 NDR15 NDR7 -- -- NDER6 POD14 POD6 NDR14 NDR6 -- -- NDER5 POD13 POD5 NDR13 NDR5 -- -- NDER4 POD12 POD4 NDR12 NDR4 -- -- NDER3 POD11 POD3 NDR11 NDR3 NDR11 NDR3 NDER2 POD10 POD2 NDR10 NDR2 NDR10 NDR2 NDER1 POD9 POD1 NDR9 NDR1 NDR9 NDR1 P17DDR P16DDR P15DDR P14DDR P13DDR P12DDR P11DDR P10DDR P37DDR P36DDR P35DDR P34DDR P33DDR P32DDR P31DDR P30DDR P77DDR P76DDR P75DDR P74DDR P73DDR P72DDR P71DDR P70DDR -- -- -- -- PA3DDR PA2DDR PA1DDR PA0DDR 8 PB7DDR PB6DDR PB5DDR PB4DDR PB3DDR PB2DDR PB1DDR PB0DDR PC7DDR PC6DDR PC5DDR PC4DDR PC3DDR PC2DDR PC1DDR PC0DDR PD7DDR PD6DDR PD5DDR PD4DDR PD3DDR PD2DDR PD1DDR PD0DDR PE7DDR PE6DDR PE5DDR PE4DDR PE3DDR PE2DDR PE1DDR PE0DDR PF7DDR PF6DDR PF5DDR PF4DDR PF3DDR PF2DDR PF1DDR PF0DDR -- -- -- -- -- -- PG4DDR PG3DDR PG2DDR PG1DDR PG0DDR -- PA3PCR PA2PCR PA1PCR PA0PCR PB7PCR PB6PCR PB5PCR PB4PCR PB3PCR PB2PCR PB1PCR PB0PCR PC7PCR PC6PCR PC5PCR PC4PCR PC3PCR PC2PCR PC1PCR PC0PCR PD7PCR PD6PCR PD5PCR PD4PCR PD3PCR PD2PCR PD1PCR PD0PCR PE7PCR PE6PCR PE5PCR PE4PCR PE3PCR PE2PCR PE1PCR PE0PCR P37ODR P36ODR P35ODR P34ODR P33ODR P32ODR P31ODR P30ODR -- -- -- -- PA3ODR PA2ODR PA1ODR PA0ODR PB7ODR PB6ODR PB5ODR PB4ODR PB3ODR PB2ODR PB1ODR PB0ODR PC7ODR PC6ODR PC5ODR PC4ODR PC3ODR PC2ODR PC1ODR PC0ODR 1186 Register Address Name H'FE80 TCR3 H'FE81 TMDR3 H'FE82 TIOR3H H'FE83 TIOR3L H'FE84 TIER3 H'FE85 TSR3 H'FE86 TCNT3 H'FE87 H'FE88 TGR3A H'FE89 H'FE8A TGR3B H'FE8B H'FE8C TGR3C H'FE8D H'FE8E TGR3D H'FE8F H'FE90 TCR4 H'FE91 TMDR4 H'FE92 TIOR4 H'FE94 TIER4 H'FE95 TSR4 H'FE96 TCNT4 H'FE97 H'FE98 TGR4A H'FE99 H'FE9A TGR4B H'FE9B H'FEA0 TCR5 H'FEA1 TMDR5 H'FEA2 TIOR5 H'FEA4 TIER5 H'FEA5 TSR5 H'FEA6 TCNT5 H'FEA7 H'FEA8 TGR5A H'FEA9 H'FEAA TGR5B H'FEAB Bit 7 CCLR2 -- IOB3 IOD3 TTGE -- Bit 6 CCLR1 -- IOB2 IOD2 -- -- Bit 5 CCLR0 BFB IOB1 IOD1 -- -- Bit 4 CKEG1 BFA IOB0 IOD0 TCIEV TCFV Bit 3 CKEG0 MD3 IOA3 IOC3 TGIED TGFD Bit 2 TPSC2 MD2 IOA2 IOC2 TGIEC TGFC Bit 1 TPSC1 MD1 IOA1 IOC1 TGIEB TGFB Bit 0 TPSC0 MD0 IOA0 IOC0 TGIEA TGFA Module Name TPU3 Data Bus Width (bits) 16 -- -- IOB3 TTGE TCFD CCLR1 -- IOB2 -- -- CCLR0 -- IOB1 TCIEU TCFU CKEG1 -- IOB0 TCIEV TCFV CKEG0 MD3 IOA3 -- -- TPSC2 MD2 IOA2 -- -- TPSC1 MD1 IOA1 TGIEB TGFB TPSC0 MD0 IOA0 TGIEA TGFA TPU4 16 -- -- IOB3 TTGE TCFD CCLR1 -- IOB2 -- -- CCLR0 -- IOB1 TCIEU TCFU CKEG1 -- IOB0 TCIEV TCFV CKEG0 MD3 IOA3 -- -- TPSC2 MD2 IOA2 -- -- TPSC1 MD1 IOA1 TGIEB TGFB TPSC0 MD0 IOA0 TGIEA TGFA TPU5 16 1187 Register Address Name H'FEB0 TSTR H'FEB1 TSYR H'FEC0 IPRA H'FEC1 IPRB H'FEC2 IPRC H'FEC3 IPRD H'FEC4 IPRE H'FEC5 IPRF H'FEC6 IPRG H'FEC7 IPRH H'FEC8 IPRI H'FEC9 IPRJ H'FECA IPRK H'FECB IPRL H'FECE IPRO H'FED0 ABWCR H'FED1 ASTCR H'FED2 WCRH H'FED3 WCRL H'FED4 BCRH H'FED5 BCRL H'FED6 MCR Bit 7 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ABW7 AST7 W71 W31 ICIS1 BRLE TPC Bit 6 -- -- IPR6 IPR6 IPR6 IPR6 IPR6 IPR6 IPR6 IPR6 IPR6 IPR6 IPR6 IPR6 IPR6 ABW6 AST6 W70 W30 ICIS0 Bit 5 CST5 SYNC5 IPR5 IPR5 IPR5 IPR5 IPR5 IPR5 IPR5 IPR5 IPR5 IPR5 IPR5 IPR5 IPR5 ABW5 AST5 W61 W21 Bit 4 CST4 SYNC4 IPR4 IPR4 IPR4 IPR4 IPR4 IPR4 IPR4 IPR4 IPR4 IPR4 IPR4 IPR4 IPR4 ABW4 AST4 W60 W20 Bit 3 CST3 SYNC3 -- -- -- -- -- -- -- -- -- -- -- -- -- ABW3 AST3 W51 W11 Bit 2 CST2 SYNC2 IPR2 IPR2 IPR2 IPR2 IPR2 IPR2 IPR2 IPR2 IPR2 IPR2 IPR2 IPR2 IPR2 ABW2 AST2 W50 W10 Bit 1 CST1 SYNC1 IPR1 IPR1 IPR1 IPR1 IPR1 IPR1 IPR1 IPR1 IPR1 IPR1 IPR1 IPR1 IPR1 ABW1 AST1 W41 W01 RMTS1 WDBE RLW1 CKS1 Bit 0 CST0 SYNC0 IPR0 IPR0 IPR0 IPR0 IPR0 IPR0 IPR0 IPR0 IPR0 IPR0 IPR0 IPR0 IPR0 ABW0 AST0 W40 W00 RMST0 WAITE RLW0 CKS0 Module Name TPU Data Bus Width (bits) 16 Interrupt controller 8 Bus controller 8 BRSTRM BRSTS1 BRSTS0 RMTS2 BREQOE -- OES CW2 DDS MXC1 CMIE RCTS MXC0 CKS2 BE CBRM RCDM H'FED7 DRAMCR RFSHE H'FED8 RTCNT H'FED9 RTCOR H'FEDB RAMER H'FEE0 MAR0AH H'FEE1 H'FEE2 MAR0AL H'FEE3 H'FEE4 IOAR0A H'FEE5 H'FEE6 ETCR0A H'FEE7 H'FEE8 MAR0BH H'FEE9 H'FEEA MAR0BL H'FEEB -- -- -- RMODE CMF -- -- -- -- -- -- RAMS -- RAM2 -- RAM1 -- RAM0 -- FLASH DMAC 8 16 -- -- -- -- -- -- -- 1188 Register Address Name H'FEEC IOAR0B H'FEED H'FEEE ETCR0B H'FEEF H'FEF0 MAR1AH H'FEF1 H'FEF2 MAR1AL H'FEF3 H'FEF4 IOAR1A H'FEF5 H'FEF6 ETCR1A H'FEF7 H'FEF8 MAR1BH H'FEF9 H'FEFA MAR1BL H'FEFB H'FEFC IOAR1B H'FEFD H'FEFE ETCR1B H'FEFF H'FF00 H'FF01 H'FF02 H'FF04 H'FF05 H'FF06 H'FF07 H'FF09 P1DR -- P3DR -- -- P7DR -- PADR Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Module Name DMAC Data Bus Width (bits) 16 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- P17DR -- P37DR -- -- P77DR -- -- PB7DR PC7DR PD7DR PE7DR PF7DR -- CCLR2 -- P16DR -- P36DR -- -- P76DR -- -- PB6DR PC6DR PD6DR PE6DR PF6DR -- CCLR1 -- P15DR -- P35DR -- -- P75DR -- -- PB5DR PC5DR PD5DR PE5DR PF5DR -- CCLR0 BFB P14DR -- P34DR -- -- P74DR -- -- PB4DR PC4DR PD4DR PE4DR PF4DR P13DR -- P33DR -- -- P73DR -- PA3DR PB3DR PC3DR PD3DR PE3DR PF3DR P12DR -- P32DR -- -- P72DR -- PA2DR PB2DR PC2DR PD2DR PE2DR PF2DR P11DR -- P31DR -- -- P71DR -- PA1DR PB1DR PC1DR PD1DR PE1DR PF1DR P10DR -- P30DR -- -- P70DR -- PA0DR PB0DR PC0DR PD0DR PE0DR PF0DR Port 8 H'FF0A PBDR H'FF0B PCDR H'FF0C PDDR H'FF0D PEDR H'FF0E PFDR H'FF0F PGDR H'FF10 H'FF11 TCR0 TMDR0 PG4DR PG3DR PG2DR PG1DR PG0DR CKEG1 BFA CKEG0 MD3 TPSC2 MD2 TPSC1 MD1 TPSC0 MD0 TPU0 16 1189 Register Address Name H'FF12 H'FF13 H'FF14 H'FF15 H'FF16 H'FF17 H'FF18 H'FF19 H'FF1A TGR0B H'FF1B H'FF1C TGR0C H'FF1D H'FF1E TGR0D H'FF1F H'FF20 H'FF21 H'FF22 H'FF24 H'FF25 H'FF26 H'FF27 H'FF28 H'FF29 H'FF2A TGR1B H'FF2B H'FF30 H'FF31 H'FF32 H'FF34 H'FF35 H'FF36 H'FF37 H'FF38 H'FF39 TGR2A TCR2 TMDR2 TIOR2 TIER2 TSR2 TCNT2 TGR1A TCR1 TMDR1 TIOR1 TIER1 TSR1 TCNT1 TGR0A TIOR0H TIOR0L TIER0 TSR0 TCNT0 Bit 7 IOB3 IOD3 TTGE -- Bit 6 IOB2 IOD2 -- -- Bit 5 IOB1 IOD1 -- -- Bit 4 IOB0 IOD0 TCIEV TCFV Bit 3 IOA3 IOC3 TGIED TGFD Bit 2 IOA2 IOC2 TGIEC TGFC Bit 1 IOA1 IOC1 TGIEB TGFB Bit 0 IOA0 IOC0 TGIEA TGFA Module Name TPU0 Data Bus Width (bits) 16 -- -- IOB3 TTGE TCFD CCLR1 -- IOB2 -- -- CCLR0 -- IOB1 TCIEU TCFU CKEG1 -- IOB0 TCIEV TCFV CKEG0 MD3 IOA3 -- -- TPSC2 MD2 IOA2 -- -- TPSC1 MD1 IOA1 TGIEB TGFB TPSC0 MD0 IOA0 TGIEA TGFA TPU1 16 -- -- IOB3 TTGE TCFD CCLR1 -- IOB2 -- -- CCLR0 -- IOB1 TCIEU TCFU CKEG1 -- IOB0 TCIEV TCFV CKEG0 MD3 IOA3 -- -- TPSC2 MD2 IOA2 -- -- TPSC1 MD1 IOA1 TGIEB TGFB TPSC0 MD0 IOA0 TGIEA TGFA TPU2 16 1190 Register Address Name H'FF3A TGR2B H'FF3B H'FF60 H'FF61 H'FF62 H'FF63 H'FF64 H'FF65 H'FF66 H'FF67 H'FF68 H'FF69 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Module Name TPU2 Data Bus Width (bits) 16 DMAWER -- DMATCR -- -- -- DTID DTID DTID DTID FAE0 DTE1A CMIEA CMIEA CMFA CMFA -- TEE1 RPE RPE RPE RPE SAE1 DTE0B OVIE OVIE OVF OVF -- TEE0 DTDIR DTDIR DTDIR DTDIR SAE0 DTE0A CCLR1 CCLR1 ADTE -- WE1B -- DTF3 DTF3 DTF3 DTF3 DTA1B WE1A -- DTF2 DTF2 DTF2 DTF2 DTA1A WE0B -- DTF1 DTF1 DTF1 DTF1 DTA0B WE0A -- DTF0 DTF0 DTF0 DTF0 DTA0A DMAC 8 DMACR0A DTSZ DMACR0B DTSZ DMACR1A DTSZ DMACR1B DTSZ DMABCRH FAE1 DMABCRL DTE1B TCR0 TCR1 CMIEB CMIEB CMFB CMFB 16 DTIE1B DTIE1A DTIE0B DTIE0A CCLR0 CCLR0 OS3 OS3 CKS2 CKS2 OS2 OS2 CKS1 CKS1 OS1 OS1 CKS0 CKS0 OS0 OS0 TMR0, TMR1 16 H'FF6A TCSR0 H'FF6B TCSR1 H'FF6C TCORA0 H'FF6D TCORA1 H'FF6E TCORB0 H'FF6F TCORB1 H'FF70 H'FF71 H'FF74 (write) H'FF75 (read) H'FF76 (write) H'FF77 (read) H'FF78 SMR0 SMR0 ICCR0 H'FF79 BRR0 ICSR0 H'FF7A SCR0 H'FF7B TDR0 RSTCSR RSTCSR TCNT0 TCNT1 TCSR0/ TCNT0 TCNT0 OVF/ WT/IT/ TME/ --/ --/ CKS2/ CKS1/ CKS0/ WDT0 16 WOVF RSTE RSTS -- -- -- -- -- WOVF RSTE RSTS -- -- -- -- -- C/A GM ICE CHR BLK IEIC PE PE MST O/E O/E TRS STOP BCP1 ACKE MP BCP0 BBSY CKS1 CKS1 IRIC CKS0 CKS0 SCP SCI0, IIC0, 8 Smart card interface ESTP TIE STOP RIE IRTR TE AASX RE AL MPIE AAS TEIE ADZ CKE1 ACKB CKE0 1191 Register Address Name H'FF7C SSR0 SSR0 H'FF7D RDR0 H'FF7E SCMR0 ICDR0/ SARX0 H'FF7F ICMR0/ SAR0 H'FF80 SMR1 SMR1 ICCR1 H'FF81 BRR1 ICSR1 H'FF82 H'FF83 H'FF84 SCR1 TDR1 SSR1 SSR1 H'FF85 H'FF86 RDR1 SCMR1 ICDR1/ SARX1 H'FF87 ICMR1/ SAR1 H'FF88 SMR2 SMR2 H'FF89 BRR2 Bit 7 TDRE TDRE Bit 6 RDRF RDRF Bit 5 ORER ORER Bit 4 FER ERS Bit 3 PER PER Bit 2 TEND TEND Bit 1 MPB MPB Bit 0 MPBT MPBT Module Name Data Bus Width (bits) SCI0, IIC0, 8 Smart card interface -- ICDR7/ SVAX6 MLS/ SVA6 C/A GM ICE -- ICDR6/ SVAX5 WAIT/ SVA5 CHR BLK IEIC -- ICDR5/ SVAX4 CKS2/ SVA4 PE PE MST -- ICDR4/ SVAX3 CKS1/ SVA3 O/E O/E TRS SDIR ICDR3/ SVAX2 CKS0/ SVA2 STOP BCP1 ACKE SINV ICDR2/ SVAX1 BC2/ SVA1 MP BCP0 BBSY -- ICDR1/ SVAX0 BC1/ SVA0 CKS1 CKS1 IRIC SMIF ICDR0/ FSX BC0/FS CKS0 CKS0 SCP SCI1, IIC1, Smart card interface ESTP TIE STOP RIE IRTR TE AASX RE AL MPIE AAS TEIE ADZ CKE1 ACKB CKE0 TDRE TDRE RDRF RDRF ORER ORER FER ERS PER PER TEND TEND MPB MPB MPBT MPBT -- ICDR7/ -- ICDR6/ -- ICDR5/ -- ICDR4/ SDIR ICDR3/ SINV ICDR2/ -- ICDR1/ SMIF ICDR0/ SVARX6 SVARX5 SVARX4 SVARX3 SVARX2 SVARX1 SVARX0 FSX MLS/ SVA6 C/A GM WAIT/ SVA5 CHR BLK CKS2/ SVA4 PE PE CKS1/ SVA3 O/E O/E CKS0/ SVA2 STOP BCP1 BC2/ SVA1 MP BCP0 BC1/ SVA0 CKS1 CKS1 CKS0 CKS0 SCI2, Smart card interface 8 BC0/FS IIC1 8 H'FF8A SCR2 H'FF8B TDR2 H'FF8C SSR2 SSR2 H'FF8D RDR2 H'FF8E SCMR2 H'FF90 H'FF91 H'FF92 ADDRAH ADDRAL ADDRBH TIE RIE TE RE MPIE TEIE CKE1 CKE0 TDRE TDRE RDRF RDRF ORER ORER FER FER PER PER TEND TEND MPB MPB MPBT MPBT -- AD9 AD1 AD9 -- AD8 AD0 AD8 -- AD7 -- AD7 -- AD6 -- AD6 SDIR AD5 -- AD5 SINV AD4 -- AD4 -- AD3 -- AD3 SMIF AD2 -- AD2 A/D 8 1192 Register Address Name H'FF93 H'FF94 H'FF95 H'FF96 H'FF97 H'FF98 H'FF99 ADDRBL ADDRCH ADDRCL ADDRDH ADDRDL ADCSR ADCR Bit 7 AD1 AD9 AD1 AD9 AD1 ADF TRGS1 OVF/ Bit 6 AD0 AD8 AD0 AD8 AD0 ADIE TRGS0 WT/IT/ Bit 5 -- AD7 -- AD7 -- ADST -- TME/ Bit 4 -- AD6 -- AD6 -- SCAN -- PSS/ Bit 3 -- AD5 -- AD5 -- CH3 CKS1 RST/ NMI/ Bit 2 -- AD4 -- AD4 -- CH2 CKS0 CKS2/ Bit 1 -- AD3 -- AD3 -- CH1 -- CKS1/ Bit 0 -- AD2 -- AD2 -- CH0 -- CKS0/ Module Name A/D Data Bus Width (bits) 8 H'FFA2 TCSR1/ (write) TCNT1 WDT1 16 H'FFA3 TCNT1 (read) H'FFA4 DADR0 H'FFA5 DADR1 H'FFA6 DACR01 H'FFA8 FLMCR1 H'FFA9 FLMCR2 H'FFAA EBR1 H'FFAB EBR2 H'FFAC FLPWCR H'FFB0 PORT1 H'FFB2 PORT3 H'FFB3 PORT4 H'FFB6 PORT7 H'FFB8 PORT9 H'FFB9 PORTA H'FFBA PORTB H'FFBB PORTC H'FFBC PORTD H'FFBD PORTE H'FFBE PORTF H'FFBF PORTG DAOE1 FWE FLER EB7 -- DAOE0 SWE1 -- EB6 -- DAE ESU1 -- EB5 -- -- P15 P35 P45 P75 P95 -- PB5 PC5 PD5 PE5 PF5 -- -- PSU1 -- EB4 -- -- P14 P34 P44 P74 P94 -- PB4 PC4 PD4 PE4 PF4 PG4 -- EV1 -- EB3 EB11 -- P13 P33 P43 P73 P93 PA3 PB3 PC3 PD3 PE3 PF3 PG3 -- PV1 -- EB2 EB10 -- P12 P32 P42 P72 P92 PA2 PB2 PC2 PD2 PE2 PF2 PG2 -- E1 -- EB1 EB9 -- P11 P31 P41 P71 P91 PA1 PB1 PC1 PD1 PE1 PF1 PG1 -- P1 -- EB0 EB8 -- P10 P30 P40 P70 P90 PA0 PB0 PC0 PD0 PE0 PF0 PG0 Port 8 FLASH 8 D/A0, D/A1 8 PDWND -- P17 P37 P47 P77 P97 -- PB7 PC7 PD7 PE7 PF7 -- P16 P36 P46 P76 P96 -- PB6 PC6 PD6 PE6 PF6 -- Note: Undefined and reserved addresses are for use in future functional expansion or have test registers, etc., assigned to them. These registers must not be accessed, since operation in the event of such access, and subsequent operation, cannot be guaranteed . 1193 B.1B Addresses (H8S/2695) Bit 7 C/A GM Bit 6 CHR BLK Bit 5 PE PE Bit 4 O/E O/E Bit 3 STOP BCP1 Bit 2 MP BCP0 Bit 1 CKS1 CKS1 Bit 0 CKS0 CKS0 Module Name Data Bus Width (bits) Register Address Name H'FDD0 SMR3 SMR3 H'FDD1 BRR3 H'FDD2 SCR3 H'FDD3 TDR3 H'FDD4 SSR3 SSR3 H'FDD5 RDR3 H'FDD6 SCMR3 H'FDD8 SMR4 SMR4 H'FDD9 BRR4 H'FDDA SCR4 H'FDDB TDR4 H'FDDC SSR4 SSR4 H'FDDD RDR4 H'FDDE SCMR4 H'FDE4 SBYCR H'FDE5 SYSCR H'FDE6 SCKCR H'FDE7 MDCR SCI3, 8 Smart card interface TIE RIE TE RE MPIE TEIE CKE1 CKE0 TDRE TDRE RDRF RDRF ORER ORER FER ERS PER PER TEND TEND MPB MPB MPBT MPBT -- C/A GM -- CHR BLK -- PE PE -- O/E O/E SDIR STOP BCP1 SINV MP BCP0 -- CKS1 CKS1 SMIF CKS0 CKS0 SCI4, 8 Smart card interface TIE RIE TE RE MPIE TEIE CKE1 CKE0 TDRE TDRE RDRF RDRF ORER ORER FER ERS PER PER TEND TEND MPB MPB MPBT MPBT -- SSBY MACS PSTOP -- -- STS2 -- -- -- -- SYS1 INTM1 -- -- -- STS0 INTM0 -- -- SDIR OPE NMIEG STCS -- SINV -- MRESE SCK2 MDS2 -- -- -- SCK1 MDS1 SMIF -- RAME SCK0 MDS0 System 8 H'FDE8 MSTPCRA MSTPA7 MSTPA6 MSTPA5 MSTPA4 MSTPA3 MSTPA2 MSTPA1 MSTPA0 H'FDE9 MSTPCRB MSTPB7 MSTPB6 MSTPB5 MSTPB4 MSTPB3 MSTPB2 MSTPB1 MSTPB0 H'FDEA MSTPCRC MSTPC7 MSTPC6 MSTPC5 MSTPC4 MSTPC3 MSTPC2 MSTPC1 MSTPC0 H'FDEB PFCR CSS07 CSS36 LSON BUZZE NESEL LCASS AE3 AE2 -- AE1 STC1 AE0 STC0 H'FDEC LPWRCR DTON H'FE12 ISCRH H'FE13 ISCRL H'FE14 IER H'FE15 ISR SUBSTP RFCUT IRQ7SCB IRQ7SCA IRQ6SCB IRQ6SCA IRQ5SCB IRQ5SCA IRQ4SCB IRQ4SCA Interrupt 8 controller IRQ3SCB IRQ3SCA IRQ2SCB IRQ2SCA IRQ1SCB IRQ1SCA IRQ0SCB IRQ0SCA IRQ7E IRQ7F IRQ6E IRQ6F IRQ5E IRQ5F IRQ4E IRQ4F IRQ3E IRQ3F IRQ2E IRQ2F IRQ1E IRQ1F IRQ0E IRQ0F 1194 Register Address Name H'FE30 P1DDR H'FE32 P3DDR H'FE36 P7DDR H'FE39 PADDR H'FE3A PBDDR H'FE3B PCDDR H'FE3C PDDDR H'FE3D PEDDR H'FE3E PFDDR H'FE3F PGDDR H'FE40 PAPCR H'FE41 PBPCR H'FE42 PCPCR H'FE43 PDPCR H'FE44 PEPCR H'FE46 P3ODR H'FE47 PAODR H'FE48 PBODR H'FE49 PCODR H'FE80 TCR3 H'FE81 TMDR3 H'FE82 TIOR3H H'FE83 TIOR3L H'FE84 TIER3 H'FE85 TSR3 H'FE86 TCNT3 H'FE87 H'FE88 TGR3A H'FE89 H'FE8A TGR3B H'FE8B H'FE8C TGR3C H'FE8D H'FE8E TGR3D H'FE8F Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Module Name Port Data Bus Width (bits) 8 P17DDR P16DDR P15DDR P14DDR P13DDR P12DDR P11DDR P10DDR P37DDR P36DDR P35DDR P34DDR P33DDR P32DDR P31DDR P30DDR P77DDR P76DDR P75DDR P74DDR P73DDR P72DDR P71DDR P70DDR -- -- -- -- PA3DDR PA2DDR PA1DDR PA0DDR PB7DDR PB6DDR PB5DDR PB4DDR PB3DDR PB2DDR PB1DDR PB0DDR PC7DDR PC6DDR PC5DDR PC4DDR PC3DDR PC2DDR PC1DDR PC0DDR PD7DDR PD6DDR PD5DDR PD4DDR PD3DDR PD2DDR PD1DDR PD0DDR PE7DDR PE6DDR PE5DDR PE4DDR PE3DDR PE2DDR PE1DDR PE0DDR PF7DDR PF6DDR PF5DDR PF4DDR PF3DDR PF2DDR PF1DDR PF0DDR -- -- -- -- -- -- PG4DDR PG3DDR PG2DDR PG1DDR PG0DDR -- PA3PCR PA2PCR PA1PCR PA0PCR PB7PCR PB6PCR PB5PCR PB4PCR PB3PCR PB2PCR PB1PCR PB0PCR PC7PCR PC6PCR PC5PCR PC4PCR PC3PCR PC2PCR PC1PCR PC0PCR PD7PCR PD6PCR PD5PCR PD4PCR PD3PCR PD2PCR PD1PCR PD0PCR PE7PCR PE6PCR PE5PCR PE4PCR PE3PCR PE2PCR PE1PCR PE0PCR P37ODR P36ODR P35ODR P34ODR P33ODR P32ODR P31ODR P30ODR -- -- -- -- PA3ODR PA2ODR PA1ODR PA0ODR PB7ODR PB6ODR PB5ODR PB4ODR PB3ODR PB2ODR PB1ODR PB0ODR PC7ODR PC6ODR PC5ODR PC4ODR PC3ODR PC2ODR PC1ODR PC0ODR CCLR2 -- IOB3 IOD3 TTGE -- CCLR1 -- IOB2 IOD2 -- -- CCLR0 BFB IOB1 IOD1 -- -- CKEG1 BFA IOB0 IOD0 TCIEV TCFV CKEG0 MD3 IOA3 IOC3 TGIED TGFD TPSC2 MD2 IOA2 IOC2 TGIEC TGFC TPSC1 MD1 IOA1 IOC1 TGIEB TGFB TPSC0 MD0 IOA0 IOC0 TGIEA TGFA TPU3 16 1195 Register Address Name H'FE90 TCR4 H'FE91 TMDR4 H'FE92 TIOR4 H'FE94 TIER4 H'FE95 TSR4 H'FE96 TCNT4 H'FE97 H'FE98 TGR4A H'FE99 H'FE9A TGR4B H'FE9B H'FEA0 TCR5 H'FEA1 TMDR5 H'FEA2 TIOR5 H'FEA4 TIER5 H'FEA5 TSR5 H'FEA6 TCNT5 H'FEA7 H'FEA8 TGR5A H'FEA9 H'FEAA TGR5B H'FEAB H'FEB0 TSTR H'FEB1 TSYR H'FEC0 IPRA H'FEC1 IPRB H'FEC2 IPRC H'FEC3 IPRD H'FEC4 IPRE H'FEC5 IPRF H'FEC6 IPRG H'FEC7 IPRH H'FEC8 IPRI H'FEC9 IPRJ H'FECA IPRK H'FECB IPRL H'FECE IPRO Bit 7 -- -- IOB3 TTGE TCFD Bit 6 CCLR1 -- IOB2 -- -- Bit 5 CCLR0 -- IOB1 TCIEU TCFU Bit 4 CKEG1 -- IOB0 TCIEV TCFV Bit 3 CKEG0 MD3 IOA3 -- -- Bit 2 TPSC2 MD2 IOA2 -- -- Bit 1 TPSC1 MD1 IOA1 TGIEB TGFB Bit 0 TPSC0 MD0 IOA0 TGIEA TGFA Module Name TPU4 Data Bus Width (bits) 16 -- -- IOB3 TTGE TCFD CCLR1 -- IOB2 -- -- CCLR0 -- IOB1 TCIEU TCFU CKEG1 -- IOB0 TCIEV TCFV CKEG0 MD3 IOA3 -- -- TPSC2 MD2 IOA2 -- -- TPSC1 MD1 IOA1 TGIEB TGFB TPSC0 MD0 IOA0 TGIEA TGFA TPU5 16 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- IPR6 IPR6 IPR6 IPR6 IPR6 IPR6 IPR6 IPR6 IPR6 IPR6 IPR6 IPR6 IPR6 CST5 SYNC5 IPR5 IPR5 IPR5 IPR5 IPR5 IPR5 IPR5 IPR5 IPR5 IPR5 IPR5 IPR5 IPR5 CST4 SYNC4 IPR4 IPR4 IPR4 IPR4 IPR4 IPR4 IPR4 IPR4 IPR4 IPR4 IPR4 IPR4 IPR4 CST3 SYNC3 -- -- -- -- -- -- -- -- -- -- -- -- -- CST2 SYNC2 IPR2 IPR2 IPR2 IPR2 IPR2 IPR2 IPR2 IPR2 IPR2 IPR2 IPR2 IPR2 IPR2 CST1 SYNC1 IPR1 IPR1 IPR1 IPR1 IPR1 IPR1 IPR1 IPR1 IPR1 IPR1 IPR1 IPR1 IPR1 CST0 SYNC0 IPR0 IPR0 IPR0 IPR0 IPR0 IPR0 IPR0 IPR0 IPR0 IPR0 IPR0 IPR0 IPR0 TPU 16 Interrupt controller 8 1196 Register Address Name H'FED0 ABWCR H'FED1 ASTCR H'FED2 WCRH H'FED3 WCRL H'FED4 BCRH H'FED5 BCRL H'FED6 MCR Bit 7 ABW7 AST7 W71 W31 ICIS1 BRLE TPC Bit 6 ABW6 AST6 W70 W30 ICIS0 Bit 5 ABW5 AST5 W61 W21 Bit 4 ABW4 AST4 W60 W20 Bit 3 ABW3 AST3 W51 W11 Bit 2 ABW2 AST2 W50 W10 Bit 1 ABW1 AST1 W41 W01 RMTS1 WDBE RLW1 CKS1 Bit 0 ABW0 AST0 W40 W00 RMST0 WAITE RLW0 CKS0 Module Name Bus controller Data Bus Width (bits) 8 BRSTRM BRSTS1 BRSTS0 RMTS2 BREQOE -- OES CW2 DDS MXC1 CMIE RCTS MXC0 CKS2 BE CBRM RCDM H'FED7 DRAMCR RFSHE H'FED8 RTCNT H'FED9 RTCOR H'FEDB RAMER H'FF00 H'FF01 H'FF02 H'FF04 H'FF05 H'FF06 H'FF07 H'FF09 P1DR -- P3DR -- -- P7DR -- PADR -- P17DR -- P37DR -- -- P77DR -- -- PB7DR PC7DR PD7DR PE7DR PF7DR -- CCLR2 -- IOB3 IOD3 TTGE -- RMODE CMF -- P16DR -- P36DR -- -- P76DR -- -- PB6DR PC6DR PD6DR PE6DR PF6DR -- CCLR1 -- IOB2 IOD2 -- -- -- P15DR -- P35DR -- -- P75DR -- -- PB5DR PC5DR PD5DR PE5DR PF5DR -- CCLR0 BFB IOB1 IOD1 -- -- -- P14DR -- P34DR -- -- P74DR -- -- PB4DR PC4DR PD4DR PE4DR PF4DR RAMS P13DR -- P33DR -- -- P73DR -- PA3DR PB3DR PC3DR PD3DR PE3DR PF3DR RAM2 P12DR -- P32DR -- -- P72DR -- PA2DR PB2DR PC2DR PD2DR PE2DR PF2DR RAM1 P11DR -- P31DR -- -- P71DR -- PA1DR PB1DR PC1DR PD1DR PE1DR PF1DR RAM0 P10DR -- P30DR -- -- P70DR -- PA0DR PB0DR PC0DR PD0DR PE0DR PF0DR ROM Port 8 8 H'FF0A PBDR H'FF0B PCDR H'FF0C PDDR H'FF0D PEDR H'FF0E PFDR H'FF0F PGDR H'FF10 H'FF11 H'FF12 H'FF13 H'FF14 H'FF15 H'FF16 H'FF17 H'FF18 H'FF19 TGR0A TCR0 TMDR0 TIOR0H TIOR0L TIER0 TSR0 TCNT0 PG4DR PG3DR PG2DR PG1DR PG0DR CKEG1 BFA IOB0 IOD0 TCIEV TCFV CKEG0 MD3 IOA3 IOC3 TGIED TGFD TPSC2 MD2 IOA2 IOC2 TGIEC TGFC TPSC1 MD1 IOA1 IOC1 TGIEB TGFB TPSC0 MD0 IOA0 IOC0 TGIEA TGFA TPU0 16 1197 Register Address Name H'FF1A TGR0B H'FF1B H'FF1C TGR0C H'FF1D H'FF1E TGR0D H'FF1F H'FF20 H'FF21 H'FF22 H'FF24 H'FF25 H'FF26 H'FF27 H'FF28 H'FF29 H'FF2A TGR1B H'FF2B H'FF30 H'FF31 H'FF32 H'FF34 H'FF35 H'FF36 H'FF37 H'FF38 H'FF39 H'FF3A TGR2B H'FF3B H'FF74 (write) H'FF75 (read) H'FF76 (write) H'FF77 (read) RSTCSR RSTCSR TCSR0/ TCNT0 TCNT0 TGR2A TCR2 TMDR2 TIOR2 TIER2 TSR2 TCNT2 TGR1A TCR1 TMDR1 TIOR1 TIER1 TSR1 TCNT1 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Module Name TPU0 Data Bus Width (bits) 16 -- -- IOB3 TTGE TCFD CCLR1 -- IOB2 -- -- CCLR0 -- IOB1 TCIEU TCFU CKEG1 -- IOB0 TCIEV TCFV CKEG0 MD3 IOA3 -- -- TPSC2 MD2 IOA2 -- -- TPSC1 MD1 IOA1 TGIEB TGFB TPSC0 MD0 IOA0 TGIEA TGFA TPU1 16 -- -- IOB3 TTGE TCFD CCLR1 -- IOB2 -- -- CCLR0 -- IOB1 TCIEU TCFU CKEG1 -- IOB0 TCIEV TCFV CKEG0 MD3 IOA3 -- -- TPSC2 MD2 IOA2 -- -- TPSC1 MD1 IOA1 TGIEB TGFB TPSC0 MD0 IOA0 TGIEA TGFA TPU2 16 OVF/ WT/IT/ TME/ --/ --/ CKS2/ CKS1/ CKS0/ WDT0 16 WOVF RSTE RSTS -- -- -- -- -- WOVF RSTE RSTS -- -- -- -- -- 1198 Register Address Name H'FF78 SMR0 SMR0 ICCR0 H'FF79 BRR0 ICSR0 H'FF7A SCR0 H'FF7B TDR0 H'FF7C SSR0 SSR0 H'FF7D RDR0 H'FF7E SCMR0 ICDR0/ SARX0 H'FF7F ICMR0/ SAR0 H'FF80 SMR1 SMR1 ICCR1 H'FF81 BRR1 ICSR1 H'FF82 H'FF83 H'FF84 SCR1 TDR1 SSR1 SSR1 H'FF85 H'FF86 RDR1 SCMR1 ICDR1/ SARX1 Bit 7 C/A GM ICE Bit 6 CHR BLK IEIC Bit 5 PE PE MST Bit 4 O/E O/E TRS Bit 3 STOP BCP1 ACKE Bit 2 MP BCP0 BBSY Bit 1 CKS1 CKS1 IRIC Bit 0 CKS0 CKS0 SCP Module Name SCI0, Smart card interface Data Bus Width (bits) 8 ESTP TIE STOP RIE IRTR TE AASX RE AL MPIE AAS TEIE ADZ CKE1 ACKB CKE0 TDRE TDRE RDRF RDRF ORER ORER FER ERS PER PER TEND TEND MPB MPB MPBT MPBT -- ICDR7/ SVAX6 MLS/ SVA6 C/A GM ICE -- ICDR6/ SVAX5 WAIT/ SVA5 CHR BLK IEIC -- ICDR5/ SVAX4 CKS2/ SVA4 PE PE MST -- ICDR4/ SVAX3 CKS1/ SVA3 O/E O/E TRS SDIR ICDR3/ SVAX2 CKS0/ SVA2 STOP BCP1 ACKE SINV ICDR2/ SVAX1 BC2/ SVA1 MP BCP0 BBSY -- ICDR1/ SVAX0 BC1/ SVA0 CKS1 CKS1 IRIC SMIF ICDR0/ FSX BC0/FS CKS0 CKS0 SCP SCI1, Smart card interface 8 ESTP TIE STOP RIE IRTR TE AASX RE AL MPIE AAS TEIE ADZ CKE1 ACKB CKE0 TDRE TDRE RDRF RDRF ORER ORER FER ERS PER PER TEND TEND MPB MPB MPBT MPBT -- ICDR7/ -- ICDR6/ -- ICDR5/ -- ICDR4/ SDIR ICDR3/ SINV ICDR2/ -- ICDR1/ SMIF ICDR0/ SVARX6 SVARX5 SVARX4 SVARX3 SVARX2 SVARX1 SVARX0 FSX 1199 Register Address Name H'FF88 SMR2 SMR2 H'FF89 BRR2 Bit 7 C/A GM Bit 6 CHR BLK Bit 5 PE PE Bit 4 O/E O/E Bit 3 STOP BCP1 Bit 2 MP BCP0 Bit 1 CKS1 CKS1 Bit 0 CKS0 CKS0 Module Name SCI2, Smart card interface Data Bus Width (bits) 8 H'FF8A SCR2 H'FF8B TDR2 H'FF8C SSR2 SSR2 H'FF8D RDR2 H'FF8E SCMR2 H'FF90 H'FF91 H'FF92 H'FF93 H'FF94 H'FF95 H'FF96 H'FF97 H'FF98 H'FF99 ADDRAH ADDRAL ADDRBH ADDRBL ADDRCH ADDRCL ADDRDH ADDRDL ADCSR ADCR TIE RIE TE RE MPIE TEIE CKE1 CKE0 TDRE TDRE RDRF RDRF ORER ORER FER FER PER PER TEND TEND MPB MPB MPBT MPBT -- AD9 AD1 AD9 AD1 AD9 AD1 AD9 AD1 ADF TRGS1 P17 P37 P47 P77 P97 -- PB7 PC7 PD7 PE7 PF7 -- -- AD8 AD0 AD8 AD0 AD8 AD0 AD8 AD0 ADIE TRGS0 P16 P36 P46 P76 P96 -- PB6 PC6 PD6 PE6 PF6 -- -- AD7 -- AD7 -- AD7 -- AD7 -- ADST -- P15 P35 P45 P75 P95 -- PB5 PC5 PD5 PE5 PF5 -- -- AD6 -- AD6 -- AD6 -- AD6 -- SCAN -- P14 P34 P44 P74 P94 -- PB4 PC4 PD4 PE4 PF4 PG4 SDIR AD5 -- AD5 -- AD5 -- AD5 -- CH3 CKS1 P13 P33 P43 P73 P93 PA3 PB3 PC3 PD3 PE3 PF3 PG3 SINV AD4 -- AD4 -- AD4 -- AD4 -- CH2 CKS0 P12 P32 P42 P72 P92 PA2 PB2 PC2 PD2 PE2 PF2 PG2 -- AD3 -- AD3 -- AD3 -- AD3 -- CH1 -- P11 P31 P41 P71 P91 PA1 PB1 PC1 PD1 PE1 PF1 PG1 SMIF AD2 -- AD2 -- AD2 -- AD2 -- CH0 -- P10 P30 P40 P70 P90 PA0 PB0 PC0 PD0 PE0 PF0 PG0 Port 8 A/D 8 H'FFB0 PORT1 H'FFB2 PORT3 H'FFB3 PORT4 H'FFB6 PORT7 H'FFB8 PORT9 H'FFB9 PORTA H'FFBA PORTB H'FFBB PORTC H'FFBC PORTD H'FFBD PORTE H'FFBE PORTF H'FFBF PORTG Note: Undefined and reserved addresses are for use in future functional expansion or have test registers, etc., assigned to them. These registers must not be accessed, since operation in the event of such access, and subsequent operation, cannot be guaranteed . 1200 B.2 Functions H'FFA4 H'FFA5 H'FDAC H'FDAD 5 0 R/W 4 0 R/W 3 0 R/W 2 0 R/W 1 0 R/W 0 0 R/W DADR0--D/A Data Register 0 DADR1--D/A Data Register 1 DADR2--D/A Data Register 2 DADR3--D/A Data Register 3 Bit : 7 0 R/W 6 0 R/W D/A0 D/A1 D/A2 D/A3 Initial value : R/W : DACR01--D/A Control Register 01 DACR23--D/A Control Register 23 Bit : 7 DAOE1 Initial value : R/W : 0 R/W 6 DAOE0 0 R/W 5 DAE 0 R/W D/A enable DAOE1 DAOE0 0 0 1 DAE * 0 1 0 1 * H'FFA6 H'FDAE 4 -- 1 -- 3 -- 1 -- 2 -- 1 -- 1 -- 1 -- D/A0, 1 D/A2, 3 0 -- 1 -- 1 0 1 Description Disables channel 0, 1 (channel 2, 3) D/A conversion. Enables channel 0 (channel 2) D/A conversion. Disables channel 1 (channel 3) D/A conversion. Enables channel 0, 1 (channel 2, 3) D/A conversion. Disables channel 0 (channel 2) D/A conversion. Enables channel 1 (channel 3)D/A conversion. Enables channel 0, 1 (channel 2, 3) D/A conversion. Enables channel 0, 1 (channel 2, 3) D/A conversion. * : Don't care D/A output enable 0 0 Disables analog output DA0 (DA2). 1 Enables channel 0 D/A conversion. Also enables analog output DA0 (DA2). D/A output enable 1 0 Disables analog output DA1 (DA3). 1 Enables channel 1 D/A conversion. Also enables analog output DA1 (DA3). 1201 IrCR--IrDA Control Register Bit : 7 IrE Initial value : R/W : 0 R/W 6 IrCKS2 0 R/W 5 IrCKS1 0 R/W 4 IrCKS0 0 R/W H'FDB0 3 -- 0 -- 2 -- 0 -- 1 -- 0 -- SCI0, IrDA 0 -- 0 -- IrDA clock select 2 to 0 Bit 6 IrCKS2 0 Bit 5 IrCKS1 0 1 1 0 1 Bit 4 IrCKS0 0 1 0 1 0 1 0 1 Description B x 3/16 (3/16ths of bit rate) o/2 o/4 o/8 o/16 o/32 o/64 o/128 IrDA enable 0 1 TxD0/IrTxD and RxD0/IrRxD pins function as TxD0 and RxD0. TxD0/IrTxD and RxD0/IrRxD pins function as IrTx0 and IrRxD. SCRX--Serial Control Register X Bit : 7 -- Initial value : R/W : 0 R/W 6 IICX1 0 R/W 5 IICX0 0 R/W 4 IICE 0 R/W 3 H'FDB4 2 -- 0 R/W 1 -- 0 R/W 0 -- 0 R/W IIC FLSHE 0 R/W Flash memory control register enable I2C master enable 0 1 2 Disables CPU access of I C bus interface data register and control register. Enables CPU access of I2C bus interface data register and control register. I2C transfer rate select 1, 0 1202 DDCSWR--DDC Switch Register Bit : 7 -- Initial value : R/W : 0 R/(W)*1 6 -- 0 R/(W)*1 5 -- 0 R/(W)*1 4 -- 0 R/(W)*1 H'FDB5 3 CLR3 1 W*2 2 CLR2 1 W*2 1 CLR1 1 W*2 0 CLR0 1 W*2 IIC Reserved bit IIC clear 3 to 0 CLR3 CLR2 CLR1 CLR0 0 0 -- -- Setting prohibited 1 0 0 Setting prohibited 1 IIC0 internal latch cleared 1 0 IIC1 internal latch cleared IIC0 and IIC1 internal latch cleared 1 Invalid setting 1 -- -- -- Notes: *1 Should always be written with 0. *2 Always read as 1. 1203 DACR0--PWM (D/A) Control Register 0 DACR1--PWM (D/A) Control Register 1 Bit : 7 TEST Initial value : R/W : 0 R/W 6 PWME 0 R/W 5 -- 1 -- 4 -- 1 -- 3 OEB 0 R/W 2 OEA 0 R/W H'FDB8 H'FDBC 1 OS 0 R/W 0 CKS 0 R/W PWM0 PWM1 Clock select 0 1 Output select 0 1 Output enable A 0 1 Output enable B 0 1 PWM enable 0 1 Test mode 0 1 PWM (D/A) in user status and operating normally. PWM (D/A) in test status and will not return correct result of conversion. DACNT operates as 14-bit up-counter. Count stops when DACNT = H'0003. PWM (D/A) channel B output (PWM1/PWM3 output pin) disabled. PWM (D/A) channel B output (PWM1/PWM3 output pin) enabled. PWM (D/A) channel A output (PWM0/PWM2 output pin) disabled. PWM (D/A) channel A output (PWM0/PWM2 output pin) enabled. Direct PWM output. Inverted PWM output. Resolution (T) = system clock cycle (tcyc). Resolution (T) = system clock cycle (tcyc) x 2. 1204 DADRAH0--PWM (D/A) Data Register AH0 DADRAL0--PWM (D/A) Data Register AL0 DADRBH0--PWM (D/A) Data Register BH0 DADRBL0--PWM (D/A) Data Register BL0 DADRAH1--PWM (D/A) Data Register AH1 DADRAL1--PWM (D/A) Data Register AL1 DADRBH1--PWM (D/A) Data Register BH1 DADRBL1--PWM (D/A) Data Register BL1 DADRH Bit (CPU) Bit (Data) DADRA Initial value : R/W : : 15 13 1 14 12 1 13 11 1 12 10 1 11 9 1 10 8 1 9 7 1 8 6 1 7 5 1 6 4 1 5 3 1 H'FDB8 H'FDB9 H'FDBA H'FDBB H'FDBC H'FDBD H'FDBE H'FDBF DADRL 4 2 1 3 1 1 2 0 1 1 -- 1 0 -- 1 PWM0 PWM0 PWM0 PWM0 PWM1 PWM1 PWM1 PWM1 DA13 DA12 DA11 DA10 DA9 DA8 DA7 DA6 DA5 DA4 DA3 DA2 DA1 DA0 CFS -- : R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W -- Carrier frequency select 0 1 Basic cycle = resolution (T) x 64. DADR range = H'0401 to H'FFFD Basic cycle = resolution (T) x256. DADR range = H'0103 to H'FFFF D/A data 13 to 0 DADRB R/W : DA13 DA12 DA11 DA10 DA9 DA8 DA7 DA6 DA5 DA4 DA3 DA2 DA1 DA0 CFS REGS 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 : R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W Register select 0 1 Carrier frequency select 0 1 Basic cycle = resolution (T) x 64. DADR range = H'0401 to H'FFFD Basic cycle = resolution (T) x 256. DADR range = H'0103 to H'FFFF DADRA and DADRB access enabled. DACR and DACNT access enabled. Initial value : D/A data 13 to 0 1205 DACNTH0--PWM (D/A) Counter H0 DACNTL0--PWM (D/A) Counter L0 DACNTH1--PWM (D/A) Counter H1 DACNTL1--PWM (D/A) Counter L1 DACNTH Bit (CPU) : 15 7 0 14 6 0 13 5 0 12 4 0 11 3 0 10 2 0 9 1 0 8 0 0 H'FDBA H'FDBB H'FDBE H'FDBF DACNTL 7 8 0 6 9 0 5 10 0 4 11 0 3 12 0 2 13 0 1 -- 1 PWM0 PWM0 PWM1 PWM1 0 -- REGS 1 Bit (counter) : Initial value : R/W : R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W -- R/W Register select 0 1 DADRA and DADRB access enabled DACR and DACNT access enabled 1206 TCR0--Timer Control Register 0 TCR1--Timer Control Register 1 TCR2--Timer Control Register 2 TCR3--Timer Control Register 3 Bit : 7 CMIEB Initial value : R/W : 0 R/W 6 CMIEA 0 R/W 5 OVIE 0 R/W 4 CCLR1 0 R/W H'FF68 H'FF69 H'FDC0 H'FDC1 3 CCLR0 0 R/W 2 CKS2 0 R/W 1 CKS1 0 R/W 0 TMR0 TMR1 TMR2 TMR3 CKS0 0 R/W Timer overflow interrupt enable 0 1 OVF interrupt request (OVI) disabled OVF interrupt request (OVI) enabled Compare match interrupt enable A 0 1 CMFA interrupt request (CMIA) disabled CMFA interrupt request (CMIA) enabled Compare match interrupt enable B 0 1 CMFB interrupt request (CMIB) disabled CMFB interrupt request (CMIB) enabled Counter clear 1, 0 CCLR1 0 1 CCLR0 0 1 0 1 Clock select 2 to 0 CKS2 0 CKS1 0 1 1 0 CKS0 0 1 0 1 0 Clock input disabled Internal clock: Counting on falling edge of o/8 Internal clock: Counting on falling edge of o/64 Internal clock: Counting on falling edge of o/8192 Channel 0: Channel 1: Channel 2: Channel 3: Counting on TCNT1 overflow signal * Counting on TCNT0 compare match A * Counting on TCNT3 overflow signal * Counting on TCNT2 compare match A * Clearing disabled Cleared by compare match A Cleared by compare match B Cleared by rising edge of external reset input 1 1 0 1 External clock: Counting on rising edge External clock: Counting on falling edge External clock: Counting on both rising and falling edges Note: * No countup clock is generated if the channel 0 (channel 2) clock input is the TCNT1 (TCNT3) overflow signal, and that the channel 1 (channel 3) clock input is the TCNT0 (TCNT2) compare match signal. Do not, therefore, attempt to make such a setting. 1207 TCSR0--Timer Control/Status Register 0 TCSR1--Timer Control/Status Register 1 TCSR2--Timer Control/Status Register 2 TCSR3--Timer Control/Status Register 3 TCSR0 Bit : H'FF6A H'FF6B H'FDC2 H'FDC3 TMR0 TMR1 TMR2 TMR3 7 CMFB 0 R/(W)* 6 CMFA 0 R/(W)* 5 OVF 0 R/(W)* 4 ADTE 0 R/W 3 OS3 0 R/W 2 OS2 0 R/W 1 OS1 0 R/W 0 OS0 0 R/W Initial value : R/W : TCSR1, TCSR3 Bit : Initial value : R/W : 7 CMFB 0 R/(W)* 6 CMFA 0 R/(W)* 5 OVF 0 R/(W)* 4 -- 1 -- 3 OS3 0 R/W 2 OS2 0 R/W 1 OS1 0 R/W 0 OS0 0 R/W TCSR2 Bit : 7 CMFB 0 R/(W)* 6 CMFA 0 R/(W)* 5 OVF 0 R/(W)* 4 -- 0 R/W 3 OS3 0 R/W 2 OS2 0 R/W 1 OS1 0 R/W 0 OS0 0 R/W Initial value : R/W : Bit 7: Compare match flag B 0 [Clearing] (1) Reading CMFB then writing 0 to CMFB when CMFB=1 (2) When DTC is started by CMIB interrupt and DTC MRB DISEL bit is 0 1 [Setting] When TCNT=TCORB Bit 6: Compare match flag A 0 [Clearing] (1) Reading CMFA then writing 0 to CMFA when CMFA=1 (2) When DTC is started by CMIA interrupt and DTC MRB DISEL bit is 0 1 [Setting] When TCNT=TCORA Bit 5: Timer overflow flag 0 [Clearing] Reading OVF then writing 0 to OVF when OVF=1 1 [Setting] When TCNT changes from H'FF to H'00 Bit 4: A/D trigger enable 0 A/D conversion start request by compare match A disabled 1 A/D conversion start request by compare match A enabled Bits 3 to 0: Output select 3 to 0 OS3 0 1 OS2 0 1 0 1 No change at compare match B 0 output at compare match B 1 output at compare match B Inverted output each compare match B (toggle output) OS1 0 1 OS0 0 1 0 1 No change at compare match A 0 output at compare match A 1 output at compare match A Inverted output each compare match A (toggle output) Note: * Only 0 can be written to bits 7 to 5 (to clear these flags). 1208 TCORA0--Time Constant Register A0 TCORA1--Time Constant Register A1 TCORA2--Time Constant Register A2 TCORA3--Time Constant Register A3 TCORA0 (TCORA2) Bit : 15 1 14 1 13 1 12 1 11 1 10 1 9 1 8 1 H'FF6C H'FF6D H'FDC4 H'FDC5 TCORA1 (TCORA3) 7 1 6 1 5 1 4 1 3 1 2 1 1 1 TMR0 TMR1 TMR2 TMR3 0 1 Initial value : R/W : R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W TCORB0--Time Constant Register B0 TCORB1--Time Constant Register B1 TCORB2--Time Constant Register B2 TCORB3--Time Constant Register B3 TCORB0 (TCORB2) Bit : 15 1 14 1 13 1 12 1 11 1 10 1 9 1 8 1 H'FF6E H'FF6F H'FDC6 H'FDC7 TCORB1 (TCORB3) 7 1 6 1 5 1 4 1 3 1 2 1 1 1 TMR0 TMR1 TMR2 TMR3 0 1 Initial value : R/W : R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W TCNT0--Timer Counter 0 TCNT1--Timer Counter 1 TCNT2--Timer Counter 2 TCNT3--Timer Counter 3 TCNT0 (TCNT2) Bit : 15 0 14 0 13 0 12 0 11 0 10 0 9 0 8 0 H'FF70 H'FF71 H'FDC8 H'FDC9 TCNT1 (TCNT3) 7 0 6 0 5 0 4 0 3 0 2 0 1 0 TMR0 TMR1 TMR2 TMR3 0 0 Initial value : R/W : R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W 1209 SMR0--Serial Mode Register 0 SMR1--Serial Mode Register 1 SMR2--Serial Mode Register 2 SMR3--Serial Mode Register 3 SMR4--Serial Mode Register 4 Bit : 7 C/A Initial value : R/W : 0 R/W 6 CHR 0 R/W 5 PE 0 R/W 4 O/E 0 R/W H'FF78 H'FF80 H'FF88 H'FDD0 H'FDD8 3 STOP 0 R/W 2 MP 0 R/W 1 CKS1 0 R/W 0 CKS0 0 R/W SCI0 SCI1 SCI2 SCI3 SCI4 Clock select 1 and 0 CKS1 0 1 CKS0 0 1 0 1 Description o clock o/4 clock o/16 clock o/64 clock Multiprocessor mode 0 1 Multiprocessor function disabled Multiprocessor format selected Stop bit length 0 1 In transmission, a single 1 bit (stop bit) is added to the end of a transmit character before it is sent. 2 stop bits: In transmission, two 1 bits (stop bits) are added to the end of a transmit character before it is sent. 1 stop bit: Parity mode 0 1 Even parity*1 Odd parity*2 Notes: *1 When even parity is set, parity bit addition is performed in transmission so that the total number of 1 bits in the transmit character plus the parity bit is even. In reception, a check is performed to see if the total number of 1 bits in the receive character plus the parity bit is even. *2 When odd parity is set, parity bit addition is performed in transmission so that the total number of 1 bits in the transmit character plus the parity bit is odd. In reception, a check is performed to see if the total number of 1 bits in the receive character plus the parity bit is odd. Parity enable 0 1 Parity bit addition and checking disabled Parity bit addition and checking enabled* Note: * When the PE bit is set to 1, the parity (even or odd) specified by the O/E bit is added to transmit data before transmission. In reception, the parity bit is checked for the parity (even or odd) specified by the O/E bit. Character length 0 1 8-bit data 7-bit data* Note: * When 7-bit data is selected, the MSB (bit 7) of TDR is not transmitted, and it is not possible to choose between LSB-first or MSB-first transfer. Communication mode 0 1 Asynchronous mode Clocked synchronous mode 1210 SMR0--Serial Mode Register 0 SMR1--Serial Mode Register 1 SMR2--Serial Mode Register 2 SMR3--Serial Mode Register 3 SMR4--Serial Mode Register 4 Bit : 7 GM Initial value : R/W : 0 R/W 6 BLK 0 R/W 5 PE 0 R/W 4 O/E 0 R/W H'FF78 H'FF80 H'FF88 H'FDD0 H'FDD8 3 BCP1 0 R/W 2 BCP0 0 R/W 1 CKS1 0 R/W Smart Card Interface 0 CKS0 0 R/W Basic clock pulse 1, 0 BCP1 BCP0 0 0 1 1 0 1 Block transfer mode 0 Operation of normal smart card interface mode (1) Error signal output, detection, and automatic resending of data; (2) TXI interrupt generated by TEND flag; (3) TEND flag set 12.5etu after start of transmission (after 11.0etu in GSM mode). Operation in block transfer mode (1) No error signal output, detection, or automatic resending of data; (2) TXI interrupt generated by TDRE flag; (3) TEND flag set 11.5etu after start of transmission (after 11.0etu in GSM mode). 32 clock 64 clock 372 clock 256 clock 1 GSM Mode 0 Operation in normal smart card interface mode (1)TEND flag set 12.5etu (11.5etu in block transfer mode) after start of first bit; (2)ON/OFF control only of clock output. Operation in GSM mode smart card interface mode (1)TEND flag set 11.0etu after start of first bit; (2)In addition to ON/OFF control of clock output, High/Low control also enabled (set by SCR). 1 Note: etu: Elementary Time Unit. The time to send 1 bit. Note: Set bit 5 to 1 when using the smart card interface. 1211 BRR0--Bit Rate Register 0 BRR1--Bit Rate Register 1 BRR2--Bit Rate Register 2 BRR3--Bit Rate Register 3 BRR4--Bit Rate Register 4 Bit : 7 1 R/W 6 1 R/W 5 1 R/W 4 1 R/W H'FF79 H'FF81 H'FF89 H'FDD1 H'FDD9 3 1 R/W 2 1 R/W 1 1 R/W 0 1 SCI0 SCI1 SCI2 SCI3 SCI4 Initial value : R/W : R/W 1212 SCR0--Serial Control Register 0 SCR1--Serial Control Register 1 SCR2--Serial Control Register 2 SCR3--Serial Control Register 3 SCR4--Serial Control Register 4 Bit : 7 TIE Initial value : R/W : 0 R/W 6 RIE 0 R/W 5 TE 0 R/W 4 RE 0 R/W 3 MPIE 0 R/W 2 TEIE 0 R/W 1 CKE1 0 R/W Clock enable 1, 0 Bit 1 CKE1 0 Bit 0 CKE0 0 H'FF7A H'FF82 H'FF8A H'FDD2 H'FDDA 0 CKE0 0 R/W SCI0 SCI1 SCI2 SCI3 SCI4 Description Async mode Internal clock/SCK pin set as I/O port*1 Clock sync mode Internal clock/SCK pin set for sync clock output*1 1 Async mode Internal clock/SCK pin set for clock output*2 Clock sync mode Internal clock/SCK pin set for sync clock output 1 0 Async mode External clock/SCK pin set for clock input*3 Clock sync mode External clock/SCK pin set for sync clock input 1 Async mode External clock/SCK pin set for clock input*3 Clock sync mode External clock/SCK pin set for sync clock input Notes: *1 Initial value *2 Clock output at same frequency as bit rate *3 Clock input at 16 times frequency of bit rate Transmit end interrupt enable 0 Transmit end interrupt (TEI) requests disabled* 1 Transmit end interrupt (TEI) requests enabled* Note: * To cancel a TEI, clear SSR TDRE flag to 0 after reading TDRE=1, then either clear the TEND flag to 0 or clear the TEIE bit to 0. Multiprocessor interrupt enable 0 Multiprocessor interrupt disabled (normal receive operations) [Clearing] (1) Clear the MPIE bit to 0; (2) When data MPB=1 is received. Multiprocessor interrupt enabled* Until data is received that the multiprocessor bit = 1, receive interrupt (RXI) requests, receive error interrupt (ERI) requests, and SSR RDRF, FER, and ORER flags cannot be set. 1 Note: * On reception of receive data that includes MPB=0, the receive data is not sent from the RSR to the RDR, and, on detection of receive errors, the SSR RDRF, FER and ORER flags are not set. On reception of receive data that includes MPB=1, the SSR MPB bit is set to 1 and the MPIE bit is automatically cleared to 0. If an RXI or ERI interrupt request occurs (when the SCR TIE or RIE bit is set to 1), the FER and ORER flags can be set. Receive enable 0 Disable receive operation.*1 1 Enable receive operation.*2 Notes: *1 Clearing the RE bit has no effect on the RDRF, FER, PER, or ORER flags. *2 Serial receiving starts on detection of the start bit when in async mode, or on detection of sync clock input in clock sync mode. Before setting the RE bit to 1, be sure to set the SMR to decide the receive format. Transmit enable 0 Disable transmit operation.*1 1 Enable transmit operation.*2 Notes: *1 The SSR TDRE flag is set to 1 (fixed). *2 Transmission starts when, in this state, transmit data is written to TDR and the SSR TDRE flag is cleared to 0. Before setting the TE bit to 1, be sure to set the SMR to decide the transmit format. Receive interrupt enable 0 Disable receive data full interrupt (RXI) requests and receive error interrupt (ERI) requests.* 1 Enable receive data full interrupt (RXI) requests and receive error interrupt (ERI) requests. Note: * To cancel RXI and ERI interrupt requests, either clear the RDRF or FER, PER, or ORER flags after reading "1", or clear the RIE bit to 0. Transmit interrupt enable 0 Disable transmit data empty interrupt (TXI) requests. 1 Enable transmit data empty interrupt (TXI) requests. Note: To clear TXI interrupt requests, clear the TDRE flag to 0 after reading "1", or clear the TIE bit to 0. 1213 TDR0--Transmit Data Register 0 TDR1--Transmit Data Register 1 TDR2--Transmit Data Register 2 TDR3--Transmit Data Register 3 TDR4--Transmit Data Register 4 Bit : 7 1 R/W 6 1 R/W 5 1 R/W 4 1 R/W H'FF7B H'FF83 H'FF8B H'FDD3 H'FDDB 3 1 R/W 2 1 R/W 1 1 R/W 0 1 SCI0 SCI1 SCI2 SCI3 SCI4 Initial value : R/W : R/W 1214 SSR0--Serial Status Register 0 SSR1--Serial Status Register 1 SSR2--Serial Status Register 2 SSR3--Serial Status Register 3 SSR4--Serial Status Register 4 Bit : 7 TDRE Initial value : R/W : 1 6 RDRF 0 5 ORER 0 4 FER 0 3 PER 0 2 TEND 1 R H'FF7C H'FF84 H'FF8C H'FDD4 H'FDDC 1 MPB 0 R 0 MPBT 0 R/W SCI0 SCI1 SCI2 SCI3 SCI4 R/(W)*1 R/(W)*1 R/(W)*1 R/(W)*1 R/(W)*1 Multiprocessor bit transfer (MPBT) 0 Transfer data "multiprocessor bit = 0". (initial value) 1 Transfer data "multiprocessor bit = 1". Multiprocessor bit (MPB) 0 [Clearing condition] (initial value)*2 When data "multiprocessor bit = 0" is received. [Setting condition] 1 When data "multiprocessor bit = 1" is received. Transmit end (TEND) 0 [Clearing conditions] (1) Writing 0 to TDRE flag after reading TDRE=1; (2) When data is written to TDR by DMAC*3 or DTC*3 by TXI interrupt request. (initial value) 1 [Setting conditions] (1) When SCR TE bit=0; (2) When TDRE=1 at transfer of last bit of any byte of serial transmit character. Parity error (PER) 0 [Clearing condition] (initial value)*4 Writing 0 to PER after reading PER=1; 1 [Setting condition] When receiving, when the number of 1s in receive data plus parity bit does not match the even or odd parity specified in the SMR O/E bit.*5 Framing error (FER) 0 [Clearing condition] (initial value)*6 Writing 0 to FER after reading FER=1. 1 [Setting condition] When SCI checks if the stop bit at the end of receive data is 1 on completion of receiving, the stop bit is found to be 0.*7 Overrun error (ORER) 0 [Clearing condition] (initial value)*8 Writing 0 to ORER after reading ORER=1. 1 [Setting condition] On completion of next serial receive operation when RDRF=1.*9 Receive data register full (RDRF)*10 0 [Clearing conditions] (initial value) (1) Writing 0 to RDRF after reading RDRF=1. (2) After reading RDR data by DMAC*3 or DTC*3 by RXI interrupt request. 1 [Setting condition] When receive data is sent from RSR to RDR on normal completion of serial receive operation. Transmit data register empty (TDRE) 0 [Clearing conditions] (1) Writing 0 to TDRE after reading TDRE=1; (2) When data written to TDR by DMAC*3 or DTC*3 by TXI interrupt request; (initial value) 1 [Setting conditions] (1) When SCR TE bit=0; (2) When data is sent from TDR to TSR and data can be written to TDR. Notes: *1 *2 *3 *4 *5 Only 0 can be written to these bits (to clear these flags). The existing status is continued when, in multi-processor format, the SCR RE bit is cleared to 0. This function is not available in the H8S/2695. The PER flag is not affected and retains its previous state when the RE bit in SCR is cleared to 0. If a parity error occurs, the receive data is transferred to RDR but the RDRF flag is not set. Also, subsequent serial reception cannot be continued while the PER flag is set to 1. In clocked synchronous mode, serial transmission cannot be continued, either. *6 The FER flag is not affected and retains its previous state when the RE bit in SCR is cleared to 0. *7 In 2-stop-bit mode, only the first stop bit is checked for a value of 0; the second stop bit is not checked. If a framing error occurs, the receive data is transferred to RDR but the RDRF flag is not set. Also, subsequent serial reception cannot be continued while the FER flag is set to 1. In clocked synchronous mode, serial transmission cannot be continued, either. *8 The ORER flag is not affected and retains its previous state when the RE bit in SCR is cleared to 0. *9 The receive data prior to the overrun error is retained in RDR, and the data received subsequently is lost. Also, subsequent serial reception cannot be continued while the ORER flag is set to 1. In clocked synchronous mode, serial transmission cannot be continued, either. *10 RDR and the RDRF flag are not affected and retain their previous values when an error is detected during reception or when the RE bit in SCR is cleared to 0. If reception of the next data is completed while the RDRF flag is still set to 1, an overrun error will occur and the receive data will be lost. 1215 RDR0--Receive Data Register 0 RDR1--Receive Data Register 1 RDR2--Receive Data Register 2 RDR3--Receive Data Register 3 RDR4--Receive Data Register 4 Bit : 7 0 R 6 0 R 5 0 R 4 0 R H'FF7D H'FF85 H'FF8D H'FDD5 H'FDDD 3 0 R 2 0 R 1 0 R 0 0 R SCI0 SCI1 SCI2 SCI3 SCI4 Initial value : R/W : SCMR0--Smart Card Mode Register 0 SCMR1--Smart Card Mode Register 1 SCMR2--Smart Card Mode Register 2 SCMR3--Smart Card Mode Register 3 SCMR4--Smart Card Mode Register 4 Bit : 7 -- Initial value : R/W : 1 -- 6 -- 1 -- 5 -- 1 -- 4 -- 1 -- H'FF7E H'FF86 H'FF8E H'FDD6 H'FDDE 3 SDIR 0 R/W 2 SINV 0 R/W 1 -- 1 -- 0 SCI0 SCI1 SCI2 SCI3 SCI4 SMIF 0 R/W Smart card interface mode select 0 1 Operates as normal SCI (smart card interface function disabled) Enables smart card interface function. Smart card data invert 0 1 TDR contents are transmitted without modification Receive data is stored in RDR without modification TDR contents are inverted before being transmitted Receive data is stored in RDR in inverted form Smart card data transfer direction 0 1 Sends TDR contents LSB first; Receive data stored in RDR as LSB first. Sends TDR contents MSB first; Receive data stored in RDR as MSB first. 1216 SBYCR--Standby Control Register Bit : 7 SSBY Initial value : R/W : 0 R/W 6 STS2 0 R/W 5 STS1 0 R/W 4 STS0 0 R/W H'FDE4 3 OPE 1 R/W 2 -- 0 -- 1 -- 0 -- System 0 -- 0 -- Output port enable 0 In software standby mode, watch mode, and during direct transfer, the address bus and bus control signal are in the high-impedance state. 1 In software standby mode, watch mode, and during direct transfer, the address bus and bus control signal remain in the output state. Standby timer select 2 to 0 STS2 STS1 STS0 0 0 0 Hold time: 8192 states 1 Hold time: 16384 states 1 0 Hold time: 32768 states 1 Hold time: 65536 states Hold time: 131072 states 1 0 0 Hold time: 262144 states 1 Reserved 1 0 Hold time: 16 states* 1 Note: * This setting should not be selected with this product. Software standby 0 When the SLEEP command is executed in high-speed or medium-speed modes, the operation enters sleep mode. When the SLEEP command is executed in sub-active mode, the operation enters sub-sleep mode. 1 When the SLEEP command is executed in high-speed and medium-speed modes, operation enters software standby mode, sub-active mode, and watch mode. When the SLEEP command is executed in sub-active mode, operation enters watch mode and high-speed mode. 1217 SYSCR--System Control Register Bit : 7 MACS Initial value : R/W : 0 R/W 6 -- 0 -- 5 INTM1 0 R/W 4 INTM0 0 R/W H'FDE5 3 0 R/W 2 0 R/W 1 -- 0 -- System 0 RAME 1 R/W NMIEG MRESE NMI edge select 0 1 Interrupt request issued on falling edge of NMI input. Interrupt request issued on rising edge of NMI input. Interrupt control mode 1, 0 INTM1 0 1 INTM0 0 1 0 1 MAC saturation 0 1 Non-saturating calculation for MAC instruction Saturating calculation for MAC instruction Manual reset select bit 0 1 Manual reset disabled. Pins P74/TMO2/MRES can be used as P74/TMO2 I/O pins. Manual reset enabled. Pins P74/TMO2/MRES can be used as MRES input pins. RAM Enable 0 1 Internal RAM disabled. Internal RAM enabled. Interrupt control mode 0 -- 2 -- Interrupt controlled by bit I Do not set. Interrupt controlled by bits I2 to I0 and IPR. Do not set. 1218 SCKCR--System Clock Control Register Bit : 7 PSTOP Initial value : R/W : 0 R/W 6 -- 0 -- 5 -- 0 -- 4 -- 0 -- 3 H'FDE6 2 SCK2 0 R/W 1 SCK1 0 R/W 0 SCK0 0 R/W System STCS 0 R/W System clock select 2 to 0 SCK2 0 SCK1 0 1 1 0 1 Frequency multiplier switching mode select 0 1 Specified multiplier valid after transferring to software standby mode, watch mode, and sub-active mode. Specified multiplier valid immediately after setting value in STC bit. SCK0 0 1 0 1 0 1 -- Bus master set to high-speed mode. Medium-speed clock: o/2 Medium-speed clock: o//4 Medium-speed clock: o8 Medium-speed clock: o/16 Medium-speed clock: o/32 -- o clock output disable PSTOP High-speed mode, medium-speed mode, sub-active mode o output (initial value) High level (fixed) Sleep mode, sub-sleep mode o output High level (fixed) Software standby mode, watch mode, direct transition High level (fixed) High level (fixed) Hardware standby mode High impedance High impedance 0 1 1219 MDCR--Mode Control Register Bit : 7 -- Initial value : R/W : 1 R/W 6 -- 0 -- 5 -- 0 -- 4 -- 0 -- H'FDE7 3 -- 0 -- 2 MDS2 --* R 1 MDS1 --* R System 0 MDS0 --* R Note: * Determined by pins MD2 to MD0. Mode select 2 to 0 MSTPCRA--Module Stop Control Register A Bit : 7 0 R/W 6 0 R/W 5 1 R/W 4 1 R/W H'FDE8 3 1 R/W 2 1 R/W 1 1 R/W System 0 1 R/W MSTPA7 MSTPA6 MSTPA5 MSTPA4 MSTPA3 MSTPA2 MSTPA1 MSTPA0 Initial value : R/W : Module stop 0 1 DMAC module stop mode is cleared. DMAC module stop mode is set. MSTPCRB--Module Stop Control Register B Bit : 7 1 R/W 6 1 R/W 5 1 R/W 4 1 R/W H'FDE9 3 1 R/W 2 1 R/W 1 1 R/W System 0 1 R/W MSTPB7 MSTPB6 MSTPB5 MSTPB4 MSTPB3 MSTPB2 MSTPB1 MSTPB0 Initial value : R/W : Module stop 0 1 Module stop 0 1 IIC channel 0 module stop mode canceled. Channel 0 module stop mode enabled. IIC channel 1 module stop mode canceled. IIC channel 1 module stop mode enabled. 1220 MSTPCRC--Module Stop Control Register C Bit : 7 1 R/W 6 1 R/W Module stop 0 1 H'FDEA 4 1 3 1 R/W 2 1 R/W 1 1 R/W System 0 1 R/W 5 1 R/W MSTPC7 MSTPC6 MSTPC5 MSTPC4 MSTPC3 MSTPC2 MSTPC1 MSTPC0 Initial value : R/W : R/W PC brake controller module stop mode canceled. PC brake controller module stop mode enabled. 1221 PFCR--Pin Function Control Register Bit : 7 CSS07 Initial value : R/W : 0 R/W 6 CSS36 0 R/W 5 BUZZE 0 R/W 4 LCASS 0 R/W H'FDEB 3 AE3 1/0 R/W 2 AE2 1/0 R/W 1 AE1 0 R/W 0 System AE0 1/0 R/W LCAS output pin select bit 0 1 BUZZ output enable* 0 1 Functions as PF1 input pin. Functions as BUZZ output pin. LCAS signal output from PF2. LCAS signal output from PF6. Note: * The H8S/2695 has no BUZZ function, so only a 0 may be written to the BUZZ bit. CS3/CS6 Select 0 1 CS0/CS7 Select 0 1 Address output enable 3 to 0* AE3 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 AE2 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 AE1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 AE0 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 A8 to A23 address output disabled. A8 address output enabled. A9 to A23 address output disabled. A8 and A9 address output enabled. A10 to A23 address output disabled. A8 to A10 address output enabled. A11 to A23 address output disabled. A8 to A11 address output enabled. A12 to A23 address output disabled. A8 to A12 address output enabled. A13 to A23 address output disabled. A8 to A13 address output enabled. A14 to A23 address output disabled. A8 to A14 address output enabled. A15 to A23 address output disabled. A8 to A15 address output enabled. A16 to A23 address output disabled. A8 to A16 address output enabled. A17 to A23 address output disabled. A8 to A17 address output enabled. A18 to A23 address output disabled. A8 to A18 address output enabled. A19 to A23 address output disabled. A8 to A19 address output enabled. A20 to A23 address output disabled. A8 to A20 address output enabled. A21 to A23 address output disabled. A8 to A21 address output enabled. A22 and A23 address output disabled. A8 to A23 address output enabled. Selects CS0. Selects CS7. Selects CS3. Selects CS6. Note: * In expanded mode with ROM, bits AE3 to AE0 are initialized to B'0000. In ROMless expanded mode, bits AE3 to AE0 are initialized to B'1101. Address pins A0 to A7 are made address outputs by setting the corresponding DDR bits to 1. 1222 LPWRCR--Low-Power Control Register Bit : 7 0 R/W 6 0 R/W 5 0 R/W 4 0 R/W H'FDEC 3 0 R/W 2 -- 0 R/W 1 STC1 0 R/W 0 STC0 0 R/W System DTON*1 LSON*1 NESEL*1 SUBSTP*1 RFCUT*1 Initial value : R/W : Frequency multiplier STC1 0 1 STC0 0 1 0 1 x 1 (initial value) x2 x4 Do not set. Note: A system clock frequency multiplied by the multiplication factor (STC1 and STC0) should not exceed the maximum operating frequency defined in section 25, 26, and 27, Electrical Characteristics. Oscillator circuit feedback resistor control bit 0 1 Subclock enable 0 1 Subclock generation enabled. Subclock generation disabled. Feedback resistor ON when main clock operating; OFF when not operation. Feedback resistor OFF. Noise elimination sampling frequency select 0 1 Sampling uses o/32 clock. Sampling uses o/4 clock. Low-speed ON flag 0 * When the SLEEP command is executed in high-speed mode or medium-speed mode, operation transfers to sleep mode, software standby mode, or watch mode*. * When the SLEEP command is executed in sub-active mode*, operation transfers to watch mode*, or directly to high-speed mode. * Operation transfers to high-speed mode after watch mode* is canceled. * When the SLEEP command is executed in high-speed mode, operation transfers to watch mode* or sub-active mode. * When the SLEEP command is executed in sub-active mode*, operation transfers to sub-sleep mode or watch mode*. * Operation transfers to sub-active mode immediately watch mode* is canceled. 1 Note: * Always select high-speed mode when transferring to watch mode or sub-active mode. Direct transfer ON flag 0 * When the SLEEP command is executed in high-speed mode or medium-speed mode, operation transfers to sleep mode, software standby mode, or watch mode*. * When the SLEEP command is executed in sub-active mode, operation transfers to sub-sleep mode or watch mode*. 1 * When the SLEEP command is executed in high-speed mode or medium-speed mode, operation transfers directly to sub-active mode*, or transfers to sleep mode or software standby mode. * When the SLEEP command is executed in sub-active mode*, operation transfers directly to high-speed mode or transfers to sub-sleep mode. Note: * Always select high-speed mode when transferring to watch mode or sub-active mode. Note: *1 The H8S/2695 has no subclock function, so only a 0 may be written to this bit. 1223 BARA--Break Address Register A BARB--Break Address Register B Bit : 31 -- *** *** 24 23 22 21 20 19 18 17 H'FE00 H'FE04 16 *** 7 6 5 4 3 2 1 PBC PBC 0 BAA BAA BAA BAA BAA BAA BAA BAA BAA BAA BAA BAA BAA BAA BAA BAA -- *** 7 6 5 4 3 2 1 0 23 22 21 20 19 18 17 16 0 0 0 0 0 0 0 *** 0 0 0 0 0 0 0 0 Initial value : R/W : Unde- *** Unde- 0 fined fined -- *** -- R/W R/W R/W R/W R/W R/W R/W R/W *** R/W R/W R/W R/W R/W R/W R/W R/W Break address 23 to 0 Note: The bit configuration of BARB is the same as that of BARA. 1224 BCRA--Break Control Register A BCRB--Break Control Register B Bit : 7 CMFA Initial value : R/W : 0 R/(W)* 6 CDA 0 R/W 5 4 H'FE08 H'FE09 3 2 1 0 PBC PBC BAMRA2 BAMRA1 BAMRA0 CSELA1 CSELA0 0 R/W 0 R/W 0 R/W 0 R/W 0 R/W BIEA 0 R/W CPU cycle/DTC cycle select A 0 1 When the CPU is the bus master, PC break performed. When the CPU or DTC is the bus master, PC break performed. Condition match flag A 0 1 [Clearing condition] Writing 0 to CMFA after reading CMFA=1. [Setting condition] When channel A conditions are true. Break address mask register A2 to A0 BAMRA 2 0 0 0 0 1 1 1 1 BAMRA 1 0 0 1 1 0 0 1 1 BAMRA 0 0 1 0 1 0 1 0 1 All bits, without masking BARA, included in break condition. BAA0 (LSB) masked and not included in break condition. BAA1 and BAA0 (low 2 bits) masked and not included in break condition. BAA2 to BAA0 (low 3 bits) masked and not included in break condition. BAA3 to BAA0 (low 4 bits) masked and not included in break condition. BAA7 to BAA0 (low 8 bits) masked and not included in break condition. BAA11 to BAA0 (low 12 bits) masked and not included in break condition. BAA15 to BAA0 (low 16 bits) masked and not included in break condition. Break condition select CSELA1 0 0 1 1 CSELA0 0 1 0 1 Sets instruction fetch as break condition. Sets data read cycle as break condition. Sets data write cycle as break condition. Sets data read/write cycle as break condition. Break interrupt enable 0 1 Notes: The bit configuration of BCRB is the same as that of BCRA. * Only 0 can be written to these bits (to clear these flags). Disables PC break interrupt. Enables PC break interrupt. 1225 ISCRH--IRQ Sense Control Register H ISCRL--IRQ Sense Control Register L ISCRH Bit : 15 0 R/W 14 0 R/W 13 0 R/W 12 0 R/W H'FE12 H'FE13 Interrupt Controller Interrupt Controller 11 0 R/W 10 0 R/W 9 0 R/W 8 0 R/W IRQ7SCB IRQ7SCA IRQ6SCB IRQ6SCA IRQ5SCB IRQ5SCA IRQ4SCB IRQ4SCA Initial value : R/W : ISCRL Bit : 7 0 R/W 6 0 R/W 5 0 R/W 4 0 R/W 3 0 R/W 2 0 R/W 1 0 R/W 0 0 R/W IRQ3SCB IRQ3SCA IRQ2SCB IRQ2SCA IRQ1SCB IRQ1SCA IRQ0SCB IRQ0SCA Initial value : R/W : IRQ7 sense control A, B to IRQ0 sense control A, B IRQ7SCB IRQ7SCA to IRQ0SCB to IRQ0SCA 0 1 0 1 0 1 Interrupt request issued when IRQ7 to IRQ0 input level low. Interrupt request issued on falling edge of IRQ7 to IRQ0 input. Interrupt request issued on rising edge of IRQ7 to IRQ0 input. Interrupt request issued on both falling and rising edge of IRQ7 to IRQ0 input. IER--IRQ Enable Register Bit : 7 IRQ7E Initial value : R/W : 0 R/W 6 IRQ6E 0 R/W 5 IRQ5E 0 R/W 4 IRQ4E 0 R/W H'FE14 3 IRQ3E 0 R/W 2 IRQ2E 0 R/W Interrupt Controller 1 IRQ1E 0 R/W 0 IRQ0E 0 R/W IRQ7 to IRA0 enable 0 1 Disables IRQn interrupt. Enables IRQn interrupt. (n= 7 to 0) 1226 ISR--IRQ Status Register Bit : 7 IRQ7F Initial value : R/W : 0 R/(W)* 6 IRQ6F 0 R/(W)* 5 IRQ5F 0 R/(W)* 4 IRQ4F 0 R/(W)* H'FE15 3 IRQ3F 0 R/(W)* 2 IRQ2F 0 R/(W)* Interrupt Controller 1 IRQ1F 0 R/(W)* 0 IRQ0F 0 R/(W)* IRQ7 to IRQ0 flag 0 [Clearing] (1) Writing 0 to flag IRQnF after reading IRQnF=1; (2) When interrupt exception processing is executed when set for LOW-level detection (IRQnSCB=IRQnSCA=0) and, in addition, the IRQn input level is HIGH; (3) When IRQn interrupt exception processing is executed when set for rising edge or falling edge or both rising edge and falling edge detection (IRQnSCB=1 and IRQnSCA=1); (4) When the DTC starts due to IRQn interrupt and the DTC MRB DISEL bit is 0. [Setting] (1) When the IRQn input level changes to LOW when set for LOW level detection (IRQnSCB=IRQnSCA=0); (2) When a falling edge occurs at the IRQn input when set for falling edge detection (IRQnSCB=0, IRQnSCA=1); (3) When a rising edge occurs at the IRQn input when set for rising edge detection (IRQnSCB=1, IRQnSCA=0); (4) When either a falling edge or rising edge occurs at the IRQn input when set for both falling edge and rising edge detection (IRQnSCB=IRQnSCA=1). (n= 7 to 0) 1 Note: * Only 0 can be written to these bits (to clear these flags). 1227 DTCER--DTC Enable Register H'FE16 to H'FE1E 5 DTCE5 0 R/W 4 DTCE4 0 R/W 3 DTCE3 0 R/W 2 DTCE2 0 R/W 1 DTCE1 0 R/W 0 DTC Bit : 7 DTCE7 0 R/W 6 DTCE6 0 R/W DTCE0 0 R/W Initial value : R/W : DTC start enable DTCEn 0 DTC startup by interrupt disabled [Clearing conditions] * When data transmission ends with the DISEL bit =1. * On completion of the specified number of transmissions. DTC startup by interrupt enabled [Retention condition] When DISEL=0 and the specified number of transmissions has not completed. (n= 7 to 0) 1 1228 DTVECR--DTC Vector Register Bit : 7 0 R/(W)*1 6 0 5 0 4 0 H'FE1F 3 0 2 0 1 0 0 0 DTC SWDTE DTVEC6 DTVEC5 DTVEC4 DTVEC3 DTVEC2 DTVEC1 DTVEC0 Initial value : R/W : R/(W)*2 R/(W)*2 R/(W)*2 R/(W)*2 R/(W)*2 R/(W)*2 R/(W)*2 DTC software startup enable 0 DTC software startup disabled [Clearing conditions] * When DISEL=0 and the specified number of transmissions has not completed. * When 0 is written after a software startup data transmit end interrupt (SWDTEND) request is sent to the CPU. DTC software startup enabled [Retention conditions] * When DISEL=1 and data transmission ends; * On completion of the specified number of transmissions; * During data transmission by software startup. DTC software startup vector 6 to 0 Notes: *1 Only 1 can be written to the SWDTE bit. *2 DTVEC6 to DTVEC0 can be written to when SWDTE=0. 1 1229 PCR--PPG Output Control Register Bit : 7 1 R/W 6 1 R/W 5 1 R/W 4 1 R/W H'FE26 3 1 R/W 2 1 R/W 1 1 R/W 0 1 R/W PPG G3CMS1 G3CMS0 G2CMS1 G2CMS0 G1CMS1 G1CMS0 G0CMS1 G0CMS0 Initial value : R/W : Group 2 compare match select 1, 0 G2CMS1 G2CMS0 0 1 0 1 0 1 Pulse output group 2 output trigger TPU channel 0 compare match TPU channel 1 compare match TPU channel 2 compare match TPU channel 3 compare match Group 3 compare match select 1, 0 G3CMS1 0 1 G3CMS0 0 1 0 1 Pulse output group 3 output trigger TPU channel 0 compare match TPU channel 1 compare match TPU channel 2 compare match TPU channel 3 compare match Group 1 compare match select 1, 0 G1CMS1 0 1 G1CMS0 0 1 0 1 Pulse output group 1 output trigger TPU channel 0 compare match TPU channel 1 compare match TPU channel 2 compare match TPU channel 3 compare match Group 0 compare match select 1, 0 G0CMS1 0 1 G0CMS0 0 1 0 1 Pulse output group 0 output trigger TPU channel 0 compare match TPU channel 1 compare match TPU channel 2 compare match TPU channel 3 compare match 1230 PMR--PPG Output Mode Register Bit : 7 G3INV Initial value : R/W : 1 R/W 6 G2INV 1 R/W 5 G1INV 1 R/W 4 G0INV 1 R/W 3 0 R/W H'FE27 2 0 R/W 1 0 R/W 0 0 R/W PPG G3NOV G2NOV G1NOV G0NOV Group 0 inversion 0 1 Pulse output group 0 set for inverted output (pin output level is set LOW when PODRL=1). Pulse output group 0 set for direct output (pin output level is set HIGH when PODRL=1). Group 1 inversion 0 1 Pulse output group 1 set for inverted output (pin output level is set LOW when PODRL=1). Pulse output group 1 set for direct output (pin output level is set HIGH when PODRL=1). Group 2 inversion 0 1 Pulse output group 2 set for inverted output (pin output level is set LOW when PODRH=1). Pulse output group 2 set for direct output (pin output level is set HIGH when PODRH=1). Group 3 inversion 0 1 Pulse output group 3 set for inverted output (pin output level is set LOW when PODRH=1). Pulse output group 3 set for direct output (pin output level is set HIGH when PODRH=1). Group 3 non-overlap 0 1 Pulse output group 3 set for normal operation (output value updated on compare match A for selected TPU). Pulse output group 3 set for non-overlap operation (1 output and 0 output can be output independently on compare matches A and B of selected TPU). Group 2 non-overlap 0 1 Pulse output group 2 set for normal operation (output value updated on compare match A for selected TPU). Pulse output group 2 set for non-overlap operation (1 output and 0 output can be output independently on compare matches A and B of selected TPU). Group 1 non-overlap 0 1 Pulse output group 1 set for normal operation (output value updated on compare match A for selected TPU). Pulse output group 1 set for non-overlap operation (1 output and 0 output can be output independently on compare matches A and B of selected TPU). Group 0 non-overlap 0 1 Pulse output group 0 set for normal operation (output value updated on compare match A for selected TPU). Pulse output group 0 set for non-overlap operation (1 output and 0 output can be output independently on compare matches A and B of selected TPU). 1231 NDERH--Next Data Enable Register H NDERL--Next Data Enable Register L NDERH Bit : 7 0 R/W 6 0 R/W 5 0 R/W 4 0 R/W H'FE28 H'FE29 PPG PPG 3 0 R/W 2 0 R/W 1 0 R/W 0 0 R/W NDER15 NDER14 NDER13 NDER12 NDER11 NDER10 NDER9 NDER8 Initial value : R/W : Next data enable 15 to 8 NDER15 to NDER8 0 1 Pulse output PO15 to PO8 disabled (transfer from NDR15-NDR8 to POD15-POD8 disabled). Pulse output PO15 to PO8 enabled (transfer from NDR15-NDR8 to POD15-POD8 enabled). NDERL Bit : 7 NDER7 Initial value : R/W : 0 R/W 6 NDER6 0 R/W 5 NDER5 0 R/W 4 NDER4 0 R/W 3 NDER3 0 R/W 2 NDER2 0 R/W 1 0 R/W 0 0 R/W NDER1 NDER0 Next data enable 7 to 0 NDER7 to NDER0 0 1 Pulse output PO7 to PO0 disabled (transfer from NDR7-NDR0 to POD7-POD0 disabled). Pulse output PO7 to PO0 enabled (transfer from NDR7-NDR0 to POD7-POD0 enabled). 1232 PODRH--Output Data Register H PODRL--Output Data Register L PODRH Bit : 7 POD15 Initial value : R/W : 0 R/(W)* 6 POD14 0 R/(W)* 5 POD13 0 R/(W)* 4 POD12 0 R/(W)* H'FE2A H'FE2B PPG PPG 3 POD11 0 R/(W)* 2 POD10 0 R/(W)* 1 POD9 0 R/(W)* 0 POD8 0 R/(W)* PODRL Bit : 7 POD7 Initial value : R/W : 0 R/(W)* 6 POD6 0 R/(W)* 5 POD5 0 R/(W)* 4 POD4 0 R/(W)* 3 POD3 0 R/(W)* 2 POD2 0 R/(W)* 1 POD1 0 R/(W)* 0 POD0 0 R/(W)* Note: * The bits set for pulse output by NDER are read-only bits. 1233 NDRH--Next Data Register H Same trigger for pulse output groups. Bit : 7 NDR15 Initial value : R/W Bit : : 0 R/W 7 -- Initial value : R/W : 1 -- 6 NDR14 0 R/W 6 -- 1 -- 5 NDR13 0 R/W 5 -- 1 -- 4 NDR12 0 R/W 4 -- 1 -- H'FE2C, H'FE2E PPG 3 NDR11 0 R/W 3 -- 1 -- 2 NDR10 0 R/W 2 -- 1 -- 1 NDR9 0 R/W 1 -- 1 -- 0 NDR8 0 R/W 0 -- 1 -- Different triggers for pulse output groups. Bit : 7 NDR15 Initial value : R/W Bit : : 0 R/W 7 -- Initial value : R/W : 1 -- 6 NDR14 0 R/W 6 -- 1 -- 5 NDR13 0 R/W 5 -- 1 -- 4 NDR12 0 R/W 4 -- 1 -- 3 -- 1 -- 3 NDR11 0 R/W 2 -- 1 -- 2 NDR10 0 R/W 1 -- 1 -- 1 NDR9 0 R/W 0 -- 1 -- 0 NDR8 0 R/W Note: For details see section 12.2.4, Notes on NDR Access. 1234 NDRL--Next Data Register L Same trigger for pulse output groups. Bit : 7 NDR7 Initial value : R/W Bit : : 0 R/W 7 -- Initial value : R/W : 1 -- 6 NDR6 0 R/W 6 -- 1 -- 5 NDR5 0 R/W 5 -- 1 -- 4 NDR4 0 R/W 4 -- 1 -- H'FE2D, H'FE2F PPG 3 NDR3 0 R/W 3 -- 1 -- 2 NDR2 0 R/W 2 -- 1 -- 1 NDR1 0 R/W 1 -- 1 -- 0 NDR0 0 R/W 0 -- 1 -- Different triggers for pulse output groups. Bit : 7 NDR7 Initial value : R/W Bit : : 0 R/W 7 -- Initial value : R/W : 1 -- 6 NDR6 0 R/W 6 -- 1 -- 5 NDR5 0 R/W 5 -- 1 -- 4 NDR4 0 R/W 4 -- 1 -- 3 -- 1 -- 3 NDR3 0 R/W 2 -- 1 -- 2 NDR2 0 R/W 1 -- 1 -- 1 NDR1 0 R/W 0 -- 1 -- 0 NDR0 0 R/W Note: For details see section 12.2.4, Notes on NDR Access. P1DDR--Port 1 Data Direction Register Bit : 7 0 W 6 0 W 5 0 W 4 0 W H'FE30 3 0 W 2 0 W 1 0 W 0 0 W Port P17DDR P16DDR P15DDR P14DDR P13DDR P12DDR P11DDR P10DDR Initial value : R/W : 1235 P3DDR--Port 3 Data Direction Register Bit : 7 0 W 6 0 W 5 0 W 4 0 W H'FE32 3 0 W 2 0 W 1 0 W 0 0 W Port P37DDR P36DDR P35DDR P34DDR P33DDR P32DDR P31DDR P30DDR Initial value : R/W : P7DDR--Port 7 Data Direction Register Bit : 7 0 W 6 0 W 5 0 W 4 0 W H'FE36 3 0 W 2 0 W 1 0 W 0 0 W Port P77DDR P76DDR P75DDR P74DDR P73DDR P72DDR P71DDR P70DDR Initial value : R/W : PADDR--Port A Data Direction Register Bit : 7 -- R/W : -- 6 -- -- 5 -- -- 4 -- -- H'FE39 3 0 W 2 0 W 1 0 W 0 0 W Port PA3DDR PA2DDR PA1DDR PA0DDR Initial value : Undefined Undefined Undefined Undefined PBDDR--Port B Data Direction Register Bit : 7 0 W 6 0 W 5 0 W 4 0 W H'FE3A 3 0 W 2 0 W 1 0 W 0 0 W Port PB7DDR PB6DDR PB5DDR PB4DDR PB3DDR PB2DDR PB1DDR PB0DDR Initial value : R/W : PCDDR--Port C Data Direction Register Bit : 7 0 W 6 0 W 5 0 W 4 0 W H'FE3B 3 0 W 2 0 W 1 0 W 0 0 W Port PC7DDR PC6DDR PC5DDR PC4DDR PC3DDR PC2DDR PC1DDR PC0DDR Initial value : R/W : 1236 PDDDR--Port D Data Direction Register Bit : 7 0 W 6 0 W 5 0 W 4 0 W H'FE3C 3 0 W 2 0 W 1 0 W 0 0 W Port PD7DDR PD6DDR PD5DDR PD4DDR PD3DDR PD2DDR PD1DDR PD0DDR Initial value : R/W : PEDDR--Port E Data Direction Register Bit : 7 0 W 6 0 W 5 0 W 4 0 W H'FE3D 3 0 W 2 0 W 1 0 W 0 0 W Port PE7DDR PE6DDR PE5DDR PE4DDR PE3DDR PE2DDR PE1DDR PE0DDR Initial value : R/W : PFDDR--Port F Data Direction Register Bit : 7 6 5 4 H'FE3E 3 2 1 0 Port PF7DDR PF6DDR PF5DDR PF4DDR PF3DDR PF2DDR PF1DDR PF0DDR Modes 4 to 6 Initial value : R/W Mode 7 Initial value : R/W : 0 W 0 W 0 W 0 W 0 W 0 W 0 W 0 W : 1 W 0 W 0 W 0 W 0 W 0 W 0 W 0 W 1237 PGDDR--Port G Data Direction Register Bit : 7 -- Modes 4 and 5 Initial value : Undefined Undefined Undefined R/W : -- -- -- Modes 6 and 7 Initial value : Undefined Undefined Undefined R/W : -- -- -- 0 W 1 W 6 -- 5 -- 4 H'FE3F 3 2 1 0 Port PG4DDR PG3DDR PG2DDR PG1DDR PG0DDR 0 W 0 W 0 W 0 W 0 W 0 W 0 W 0 W PAPCR--Port A Pull-Up MOS Control Register Bit : 7 -- R/W : -- 6 -- -- 5 -- -- 4 -- -- H'FE40 3 0 R/W 2 0 R/W 1 0 R/W 0 0 R/W Port PA3PCR PA2PCR PA1PCR PA0PCR Initial value : Undefined Undefined Undefined Undefined PBPCR--Port B Pull-Up MOS Control Register Bit : 7 0 R/W 6 0 R/W 5 0 R/W 4 0 R/W H'FE41 3 0 R/W 2 0 R/W 1 0 R/W 0 0 R/W Port PB7PCR PB6PCR PB5PCR PB4PCR PB3PCR PB2PCR PB1PCR PB0PCR Initial value : R/W : PCPCR--Port C Pull-Up MOS Control Register Bit : 7 0 R/W 6 0 R/W 5 0 R/W 4 0 R/W H'FE42 3 0 R/W 2 0 R/W 1 0 R/W 0 0 R/W Port PC7PCR PC6PCR PC5PCR PC4PCR PC3PCR PC2PCR PC1PCR PC0PCR Initial value : R/W : 1238 PDPCR--Port D Pull-Up MOS Control Register Bit : 7 0 R/W 6 0 R/W 5 0 R/W 4 0 R/W H'FE43 3 0 R/W 2 0 R/W 1 0 R/W 0 0 R/W Port PD7PCR PD6PCR PD5PCR PD4PCR PD3PCR PD2PCR PD1PCR PD0PCR Initial value : R/W : PEPCR--Port E Pull-Up MOS Control Register Bit : 7 0 R/W 6 0 R/W 5 0 R/W 4 0 R/W H'FE44 3 0 R/W 2 0 R/W 1 0 R/W 0 0 R/W Port PE7PCR PE6PCR PE5PCR PE4PCR PE3PCR PE2PCR PE1PCR PE0PCR Initial value : R/W : P3ODR--Port 3 Open-Drain Control Register Bit : 7 0 R/W 6 0 R/W 5 0 R/W 4 0 R/W H'FE46 3 0 R/W 2 0 R/W 1 0 R/W 0 0 R/W Port P37ODR P36ODR P35ODR P34ODR P33ODR P32ODR P31ODR P30ODR Initial value : R/W : PAODR--Port A Open Drain Control Register Bit : 7 -- R/W : -- 6 -- -- 5 -- -- 4 -- -- H'FE47 3 0 R/W 2 0 R/W 1 0 R/W 0 0 R/W Port PA3ODR PA2ODR PA1ODR PA0ODR Initial value : Undefined Undefined Undefined Undefined 1239 PBODR--Port B Open Drain Control Register Bit : 7 0 R/W 6 0 R/W 5 0 R/W 4 0 R/W H'FE48 3 0 R/W 2 0 R/W 1 0 R/W 0 0 R/W Port PB7ODR PB6ODR PB5ODR PB4ODR PB3ODR PB2ODR PB1ODR PB0ODR Initial value : R/W : PCODR--Port C Open Drain Control Register Bit : 7 0 R/W 6 0 R/W 5 0 R/W 4 0 R/W H'FE49 3 0 R/W 2 0 R/W 1 0 R/W 0 0 R/W Port PC7ODR PC6ODR PC5ODR PC4ODR PC3ODR PC2ODR PC1ODR PC0ODR Initial value : R/W : 1240 TCR0--Timer Control Register 0 TCR3--Timer Control Register 3 Channel 0: TCR0 Channel 3: TCR3 Bit : 7 CCLR2 Initial value : R/W : 0 R/W 6 CCLR1 0 R/W 5 CCLR0 0 R/W 4 0 R/W H'FF10 H'FE80 TPU0 TPU3 3 0 R/W 2 TPSC2 0 R/W 1 TPSC1 0 R/W 0 TPSC0 0 R/W CKEG1 CKEG0 Time prescaler 2, 1, 0 TCR0 TPSC2 TPSC1 TPSC0 0 0 1 1 0 1 0 1 0 1 0 1 0 1 TCR3 TPSC2 TPSC1 TPSC0 0 0 1 1 0 1 Clock edge 1, 0 CKEG1 0 1 CKEG0 0 1 -- Counts on rising edge. Counts on falling edge. Counts on both edges. 0 1 0 1 0 1 0 1 Internal clock: counts on o/1 Internal clock: counts on o/4 Internal clock: counts on o/16 Internal clock: counts on o/64 External clock: counts on TCLKA pin input Internal clock: counts on o/1024 Internal clock: counts on o/256 Internal clock: counts on o/4096 Internal clock: counts on o/1 Internal clock: counts on o/4 Internal clock: counts on o/16 Internal clock: counts on o/64 External clock: counts on TCLKA pin input External clock: counts on TCLKB pin input External clock: counts on TCLKC pin input External clock: counts on TCLKD pin input Note: Internal clock edge selection is valid only when the input clock is o/4 or slower. This setting is ignored when the input clock is o/1 or an overflow or underflow in another channel is selected. Counter clear 2, 1, 0 CCLR2 0 CCLR1 0 1 CCLR0 0 1 0 1 1 0 1 0 1 0 1 TCNT clearing disabled. TCNT cleared at TGRA compare match/input capture. TCNT cleared at TGRB compare match/input capture. TCNT cleared when other channel counters with synchronized clearing or synchronized operation are cleared.*1 TCNT clearing disabled. TCNT cleared at TGRC compare match/input capture.*2 TCNT cleared at TGRD compare match/input capture.*2 TCNT cleared when other channel counters with synchronized clearing or synchronized operation are cleared. *1 Notes: *1 Synchronous operation setting is performed by setting the SYNC bit in TSYR to 1. *2 When TGRC or TGRD is used as a buffer register, TCNT is not cleared because the buffer register setting has priority, and compare match/input capture does not occur. 1241 TMDR0--Timer Mode Register 0 TMDR3--Timer Mode Register 3 Channel 0: TMDR0 Channel 3: TMDR3 Bit : 7 -- Initial value : R/W : 1 -- 6 -- 1 -- 5 BFB 0 R/W 4 BFA 0 R/W H'FF11 H'FE81 TPU0 TPU3 3 MD3 0 R/W 2 MD2 0 R/W 1 MD1 0 R/W 0 MD0 0 R/W Buffer operation B 0 1 Normal TGRB operation. Buffer operation of TGRB and TGRD. Buffer operation A 0 1 Normal TGRA operation. Buffer operation of TGRA and TGRC. Modes 3 to 0 MD3*1 0 MD2*2 0 MD1 0 1 1 0 1 1 * * MD0 0 1 0 1 0 1 0 1 * Normal operation Reserved PWM mode 1 PWM mode 2 Phase calculation mode 1 Phase calculation mode 2 Phase calculation mode 3 Phase calculation mode 4 -- * : Don't care Notes: *1 MD3 is a reserved bit. Only write 0 to this bit. *2 Phase calculation mode cannot be set for channels 0 and 3. Only write 0 to MD2. 1242 TIOR3H--Timer I/O Control Register 3H Bit : 7 IOB3 Initial value : R/W : 0 R/W 6 IOB2 0 R/W 5 IOB1 0 R/W 4 IOB0 0 R/W H'FE82 3 IOA3 0 R/W 2 IOA2 0 R/W 1 IOA1 0 R/W 0 TPU3 IOA0 0 R/W TGR3A I/O Control 0 0 0 1 1 0 1 1 0 0 1 1 * 0 TGR3A is Output disabled 1 output Initial output is 0 compare output 0 register 1 0 1 0 1 0 TGR3A is 1 input capture * register * Capture input source is TIOCA3 pin Output disabled Initial output is 1 output 0 output at compare match 1 output at compare match Toggle output at compare match Input capture at rising edge Input capture at falling edge Input capture at both edges 0 output at compare match 1 output at compare match Toggle output at compare match Capture input Input capture at TCNT4 count-up/ source is channel count-down 4/count clock *: Don't care TGR3B I/O Control 0 0 0 1 1 0 1 1 0 0 1 1 * 0 TGR3B is Output disabled 1 output Initial output is 0 compare output 0 register 1 0 1 0 1 0 TGR3B is 1 input capture * register * Capture input source is TIOCB3 pin Output disabled Initial output is 1 output 0 output at compare match 1 output at compare match Toggle output at compare match Input capture at rising edge Input capture at falling edge Input capture at both edges 0 output at compare match 1 output at compare match Toggle output at compare match Input capture at TCNT4 count-up/ Capture input source is channel count-down*1 4/count clock *: Don't care Note: *1 When bits TPSC2 to TPSC0 in TCR4 are set to B'000 and o/1 is used as the TCNT4 count clock, this setting is invalid and input capture is not generated. 1243 TIOR4--Timer I/O Control Register 4 Bit : 7 IOB3 Initial value : R/W : 0 R/W 6 IOB2 0 R/W 5 IOB1 0 R/W 4 IOB0 0 R/W H'FE92 3 IOA3 0 R/W 2 IOA2 0 R/W 1 IOA1 0 R/W 0 TPU4 IOA0 0 R/W TGR4A I/O Control 0 0 0 1 1 0 1 1 0 0 1 1 * 0 TGR4A is Output disabled 1 output Initial output is 0 compare output 0 register 1 0 1 0 1 0 TGR4A is 1 input capture * register * Capture input source is TIOCA4 pin Output disabled Initial output is 1 output 0 output at compare match 1 output at compare match Toggle output at compare match Input capture at rising edge Input capture at falling edge Input capture at both edges 0 output at compare match 1 output at compare match Toggle output at compare match Capture input Input capture at generation of TGR3A source is TGR3A compare match/input capture compare match/ input capture *: Don't care TGR4B I/O Control 0 0 0 1 1 0 1 1 0 0 1 1 * 0 TGR4B is Output disabled 1 output Initial output is 0 compare output 0 register 1 0 1 0 1 0 TGR4B is 1 input capture * register * Capture input source is TIOCB4 pin Output disabled Initial output is 1 output 0 output at compare match 1 output at compare match Toggle output at compare match Input capture at rising edge Input capture at falling edge Input capture at both edges 0 output at compare match 1 output at compare match Toggle output at compare match Capture input Input capture at generation of TGR3C source is TGR3C compare match/input capture compare match/ input capture *: Don't care 1244 TIOR5--Timer I/O Control Register 5 Bit : 7 IOB3 Initial value : R/W : 0 R/W 6 IOB2 0 R/W 5 IOB1 0 R/W 4 IOB0 0 R/W H'FEA2 3 IOA3 0 R/W 2 IOA2 0 R/W 1 IOA1 0 R/W 0 TPU5 IOA0 0 R/W TGR5A I/O Control 0 0 0 1 1 0 1 1 * 0 1 0 TGR5A is Output disabled 1 output Initial output is 0 compare output 0 register 1 0 1 0 1 0 TGR5A is Capture input source is 1 input TIOCA5 pin capture * register Output disabled Initial output is 1 output 0 output at compare match 1 output at compare match Toggle output at compare match Input capture at rising edge Input capture at falling edge Input capture at both edges *: Don't care TGR5B I/O Control 0 0 0 1 1 0 1 1 * 0 1 0 TGR5B is Output disabled 1 output Initial output is 0 compare output 0 register 1 0 1 0 1 0 TGR5B is Capture input source is 1 input capture TIOCB5 pin * register Output disabled Initial output is 1 output 0 output at compare match 1 output at compare match Toggle output at compare match Input capture at rising edge Input capture at falling edge Input capture at both edges *: Don't care 0 output at compare match 1 output at compare match Toggle output at compare match 0 output at compare match 1 output at compare match Toggle output at compare match 1245 TIOR0H--Timer I/O Control Register 0H Bit : 7 IOB3 Initial value : R/W : 0 R/W 6 IOB2 0 R/W 5 IOB1 0 R/W 4 IOB0 0 R/W H'FF12 3 IOA3 0 R/W 2 IOA2 0 R/W 1 IOA1 0 R/W 0 TPU0 IOA0 0 R/W TGR0A I/O Control 0 0 0 1 1 0 1 1 0 0 1 1 * 0 TGR0A is Output disabled 1 output Initial output is 0 compare output 0 register 1 0 1 0 1 0 TGR0A is 1 input capture * register * Capture input source is TIOCA0 pin Output disabled Initial output is 1 output 0 output at compare match 1 output at compare match Toggle output at compare match Input capture at rising edge Input capture at falling edge Input capture at both edges 0 output at compare match 1 output at compare match Toggle output at compare match Capture input Input capture at TCNT1 count-up/ source is channel count-down 1/count clock *: Don't care TGR0B I/O Control 0 0 0 1 1 0 1 1 0 0 1 1 * 0 TGR0B is Output disabled 1 output Initial output is 0 compare output 0 register 1 0 1 0 1 0 TGR0B is 1 input capture * register * Capture input source is TIOCB0 pin Output disabled Initial output is 1 output 0 output at compare match 1 output at compare match Toggle output at compare match Input capture at rising edge Input capture at falling edge Input capture at both edges 0 output at compare match 1 output at compare match Toggle output at compare match Input capture at TCNT1 count-up/ Capture input source is channel count-down*1 1/count clock *: Don't care Note: *1 When bits TPSC2 to TPSC0 in TCR1 are set to B'000 and o/1 is used as the TCNT1 count clock, this setting is invalid and input capture is not generated. 1246 TIOR1--Timer I/O Control Register 1 Bit : 7 IOB3 Initial value : R/W : 0 R/W 6 IOB2 0 R/W 5 IOB1 0 R/W 4 IOB0 0 R/W H'FF22 3 IOA3 0 R/W 2 IOA2 0 R/W 1 IOA1 0 R/W 0 TPU1 IOA0 0 R/W TGR1A I/O Control 0 0 0 1 1 0 1 1 0 0 1 1 * 0 TGR1A is Output disabled 1 output Initial output is 0 compare output 0 register 1 0 1 0 1 0 TGR1A is 1 input capture * register * Capture input source is TIOCA1 pin Output disabled Initial output is 1 output 0 output at compare match 1 output at compare match Toggle output at compare match Input capture at rising edge Input capture at falling edge Input capture at both edges 0 output at compare match 1 output at compare match Toggle output at compare match Capture input Input capture at generation of source is TGR0A channel 0/TGR0A compare match/ compare match/ input capture input capture *: Don't care TGR1B I/O Control 0 0 0 1 1 0 1 1 0 0 1 1 * 0 TGR1B is Output disabled 1 output Initial output is 0 compare output 0 register 1 0 1 0 1 0 TGR1B is 1 input capture * register * Capture input source is TIOCB1 pin Output disabled Initial output is 1 output 0 output at compare match 1 output at compare match Toggle output at compare match Input capture at rising edge Input capture at falling edge Input capture at both edges 0 output at compare match 1 output at compare match Toggle output at compare match Capture input Input capture at generation of TGR0C source is TGR0C compare match/input capture compare match/ input capture *: Don't care 1247 TIOR2--Timer I/O Control Register 2 Bit : 7 IOB3 Initial value : R/W : 0 R/W 6 IOB2 0 R/W 5 IOB1 0 R/W 4 IOB0 0 R/W H'FF32 3 IOA3 0 R/W 2 IOA2 0 R/W 1 IOA1 0 R/W 0 TPU2 IOA0 0 R/W TGR2A I/O Control 0 0 0 1 1 0 1 1 * 0 1 0 TGR2A is Output disabled 1 output Initial output is 0 compare output 0 register 1 0 1 0 1 0 TGR2A is Capture input source is 1 input TIOCA2 pin capture * register Output disabled Initial output is 1 output 0 output at compare match 1 output at compare match Toggle output at compare match Input capture at rising edge Input capture at falling edge Input capture at both edges *: Don't care TGR2B I/O Control 0 0 0 1 1 0 1 1 * 0 1 0 TGR2B is Output disabled 1 output Initial output is 0 compare output 0 register 1 0 1 0 1 0 TGR2B is Capture input source is 1 input capture TIOCB2 pin * register Output disabled Initial output is 1 output 0 output at compare match 1 output at compare match Toggle output at compare match Input capture at rising edge Input capture at falling edge Input capture at both edges *: Don't care 0 output at compare match 1 output at compare match Toggle output at compare match 0 output at compare match 1 output at compare match Toggle output at compare match 1248 TIOR3L--Timer I/O Control Register 3L Bit : 7 IOD3 Initial value : R/W : 0 R/W 6 IOD2 0 R/W 5 IOD1 0 R/W 4 IOD0 0 R/W H'FE83 3 IOC3 0 R/W 2 IOC2 0 R/W 1 IOC1 0 R/W 0 TPU3 IOC0 0 R/W TGR3C I/O Control 0 0 0 1 1 0 1 1 0 0 1 1 * 0 TGR3C is Output disabled 1 output Initial output is 0 compare 0 register*1 output 1 0 1 0 1 0 TGR3C is 1 input capture * register*1 * Capture input source is TIOCC3 pin Output disabled Initial output is 1 output 0 output at compare match 1 output at compare match Toggle output at compare match Input capture at rising edge Input capture at falling edge Input capture at both edges 0 output at compare match 1 output at compare match Toggle output at compare match Input capture at TCNT4 count-up/ Capture input source is channel count-down 4/count clock *: Don't care Note: *1 When the BFA bit in TMDR3 is set to 1 and TGR3C is used as a buffer register, this setting is invalid and input capture/output compare is not generated. TGR3D I/O Control 0 0 0 1 1 0 1 1 0 0 1 1 * 0 TGR3D is Output disabled 1 output Initial output is 0 compare 0 register*2 output 1 0 1 0 1 0 TGR3D is 1 input capture * register*2 * Capture input source is TIOCD3 pin Output disabled Initial output is 1 output 0 output at compare match 1 output at compare match Toggle output at compare match Input capture at rising edge Input capture at falling edge Input capture at both edges 0 output at compare match 1 output at compare match Toggle output at compare match Capture input Input capture at TCNT4 count-up/ source is channel count-down*1 4/count clock *: Don't care Notes: *1 When bits TPSC2 to TPSC0 in TCR4 are set to B'000 and o/1 is used as the TCNT4 count clock, this setting is invalid and input capture is not generated. *2 When the BFB bit in TMDR3 is set to 1 and TGR3D is used as a buffer register, this setting is invalid and input capture/output compare is not generated. Note: When TGRC or TGRD is designated for buffer operation, this setting is invalid and the register operates as a buffer register. 1249 TIOR0L--Timer I/O Control Register 0L Bit : 7 IOD3 Initial value : R/W : 0 R/W 6 IOD2 0 R/W 5 IOD1 0 R/W 4 IOD0 0 R/W H'FF13 3 IOC3 0 R/W 2 IOC2 0 R/W 1 IOC1 0 R/W 0 TPU0 IOC0 0 R/W TGR0C I/O Control 0 0 0 1 1 0 1 1 0 0 1 1 * 0 TGR0C is Output disabled 1 output Initial output is 0 compare 0 register*1 output 1 0 1 0 1 0 TGR0C is 1 input capture * register*1 * Capture input source is TIOCC0 pin Output disabled Initial output is 1 output 0 output at compare match 1 output at compare match Toggle output at compare match Input capture at rising edge Input capture at falling edge Input capture at both edges 0 output at compare match 1 output at compare match Toggle output at compare match Capture input Input capture at TCNT1 count-up/ source is channel count-down 1/count clock *: Don't care Note: *1 When the BFA bit in TMDR0 is set to 1 and TGR0C is used as a buffer register, this setting is invalid and input capture/output compare is not generated. TGR0D I/O Control 0 0 0 1 1 0 1 1 0 0 1 1 * 0 TGR0D is Output disabled 1 output Initial output is 0 compare 0 register*2 output 1 0 1 0 1 0 TGR0D is 1 input capture * register*2 * Capture input source is TIOCD0 pin Output disabled Initial output is 1 output 0 output at compare match 1 output at compare match Toggle output at compare match Input capture at rising edge Input capture at falling edge Input capture at both edges 0 output at compare match 1 output at compare match Toggle output at compare match Capture input Input capture at TCNT1 count-up/ source is channel count-down*1 1/count clock *: Don't care Notes: *1 When bits TPSC2 to TPSC0 in TCR1 are set to B'000 and o/1 is used as the TCNT1 count clock, this setting is invalid and input capture is not generated. *2 When the BFB bit in TMDR0 is set to 1 and TGR0D is used as a buffer register, this setting is invalid and input capture/output compare is not generated. Note: When TGRC or TGRD is designated for buffer operation, this setting is invalid and the register operates as a buffer register. 1250 TIER0--Timer Interrupt Enable Register 0 TIER3--Timer Interrupt Enable Register 3 Channel 0: TIER0 Channel 3: TIER3 Bit : 7 TTGE Initial value : R/W : 0 R/W 6 -- 1 -- 5 -- 0 -- 4 TCIEV 0 R/W H'FF14 H'FE84 TPU0 TPU3 3 TGIED 0 R/W 2 TGIEC 0 R/W 1 TGIEB 0 R/W 0 TGIEA 0 R/W Overflow interrupt enable 0 1 TCFV interrupt request (TCIV) disabled. TCFV interrupt request (TCIV) enabled. A/D conversion start request enable 0 1 A/D conversion start request generation disabled. A/D conversion start request generation enabled. TGR interrupt enable D 0 1 TGFD bit interrupt request (TGID) disabled. TGFD bit interrupt request (TGID) enabled. TGR interrupt enable C 0 1 TGFC bit interrupt request (TGIC) disabled. TGFC bit interrupt request (TGIC) enabled. TGR interrupt enable B 0 1 TGFB bit interrupt request (TGIB) disabled TGFB bit interrupt request (TGIB) enabled TGR interrupt enable A 0 1 TGFA bit interrupt request (TGIA) disabled. TGFA bit interrupt request (TGIA) enabled. 1251 TSR0--Timer Status Register 0 TSR3--Timer Status Register 3 Channel 0: TSR0 Channel 3: TSR3 Bit : 7 -- Initial value : R/W : 1 -- 6 -- 1 -- 5 -- 0 -- 4 TCFV 0 R/(W)* H'FF15 H'FE85 TPU0 TPU3 3 TGFD 0 R/(W)* 2 TGFC 0 R/(W)* 1 TGFB 0 R/(W)* 0 TGFA 0 R/(W)* Overflow flag 0 1 [Clearing condition] Writing 0 to TCFV after reading TCFV=1. [Setting condition] When the TCNT value overflows (H'FFFF H'0000). Input capture/output compare flag D 0 [Clearing conditions] (1) When the DTC is started by a TGID interrupt and the DTC MRB DISEL bit is 0; (2) Writing 0 to TGFD after reading TGFD=1. [Setting conditions] (1) When TGRD is functioning as the output compare register and TCNT=TGRD; (2) When TGRD is functioning as the input capture register and the value of TCNT is sent to TGRD by the input capture signal. Input capture/output compare flag C 0 [Clearing conditions] (1) When the DTC is started by a TGIC interrupt and the DTC MRB DISEL bit is 0; (2) Writing 0 to TGFC after reading TGFC=1. [Setting conditions] (1) When TGRC is functioning as the output compare register and TCNT=TGRC; (2) When TGRC is functioning as the input capture register and the value of TCNT is sent to TGRC by the input capture signal. Input capture/output compare flag B 0 [Clearing conditions] (1) When the DTC is started by a TGIB interrupt and the DTC MRB DISEL bit is 0; (2) Writing 0 to TGFB after reading TGFB=1. [Setting conditions] (1) When TGRB is functioning as the output compare register and TCNT=TGRB; (2) When TGRB is functioning as the input capture register and the value of TCNT is sent to TGRB by the input capture signal. Input capture/output compare flag A 0 [Clearing conditions] (1) When the DTC is started by a TGIA interrupt and the DTC MRB DISEL bit is 0; (2) When the DMAC is started by a TGIA interrupt and the DMAC DMABCR DTA bit is 1; (3) Writing 0 to TGFA after reading TGFA=1. [Setting conditions] (1) When TGRA is functioning as the output compare register and TCNT=TGRA; (2) When TGRA is functioning as the input capture register and the value of TCNT is sent to TGRA by the input capture signal. 1 1 1 1 Note: * Only 0 can be written to these bits (to clear these flags). 1252 TCNT0--Timer Counter 0 TCNT1*--Timer Counter 1 TCNT2*--Timer Counter 2 TCNT3--Timer Counter 3 TCNT4*--Timer Counter 4 TCNT5*--Timer Counter 5 Bit : 15 0 14 0 13 0 12 0 11 0 10 0 9 0 8 0 H'FF16 H'FF26 H'FF36 H'FE86 H'FE96 H'FEA6 7 0 6 0 5 0 4 0 3 0 2 0 1 0 TPU0 TPU1 TPU2 TPU3 TPU4 TPU5 0 0 Initial value : R/W : R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W Note: * This register can be used as an up/down counter only in phase calculation mode (and when counting overflows and underflows in other channels in phase calculation mode) In all other cases, this register functions as an up-counter. 1253 TGR0A--Timer General Register 0A TGR0B--Timer General Register 0B TGR0C--Timer General Register 0C TGR0D--Timer General Register 0D TGR1A--Timer General Register 1A TGR1B--Timer General Register 1B TGR2A--Timer General Register 2A TGR2B--Timer General Register 2B TGR3A--Timer General Register 3A TGR3B--Timer General Register 3B TGR3C--Timer General Register 3C TGR3D--Timer General Register 3D TGR4A--Timer General Register 4A TGR4B--Timer General Register 4B TGR5A--Timer General Register 5A TGR5B--Timer General Register 5B Bit : 15 1 14 1 13 1 12 1 11 1 10 1 9 1 8 1 H'FF18 H'FF1A H'FF1C H'FF1E H'FF28 H'FF2A H'FF38 H'FF3A H'FE88 H'FE8A H'FE8C H'FE8E H'FE98 H'FE9A H'FEA8 H'FEAA 7 1 6 1 5 1 4 1 3 1 2 1 1 1 TPU0 TPU0 TPU0 TPU0 TPU1 TPU1 TPU2 TPU2 TPU3 TPU3 TPU3 TPU3 TPU4 TPU4 TPU5 TPU5 0 1 Initial value : R/W : R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W 1254 TCR1--Timer Control Register 1 TCR2--Timer Control Register 2 TCR4--Timer Control Register 4 TCR5--Timer Control Register 5 Channel 1: TCR1 Channel 2: TCR2 Channel 4: TCR4 Channel 5: TCR5 Bit : 7 -- Initial value : R/W : 0 -- 6 CCLR1 0 R/W 5 CCLR0 0 R/W 4 0 R/W 3 0 R/W H'FF20 H'FF30 H'FE90 H'FEA0 TPU1 TPU2 TPU4 TPU5 2 TPSC2 0 R/W 1 TPSC1 0 R/W 0 TPSC0 0 R/W CKEG1 CKEG0 Time prescaler 2, 1, 0 TCR1 0 0 0 Internal clock: counts on o/1 1 1 1 0 1 0 1 0 1 0 1 Internal clock: counts on o/4 Internal clock: counts on o/16 Internal clock: counts on o/64 External clock: counts on TCLKA pin input External clock: counts on TCLKB pin input Internal clock: counts on o/256 Counts on TCNT2 overflow/underflow Note: This setting is ignored when channel 1 is in phase counting mode. TCR2 0 0 0 Internal clock: counts on o/1 1 1 1 0 1 0 1 0 1 0 Internal clock: counts on o/4 Internal clock: counts on o/16 Internal clock: counts on o/64 External clock: counts on TCLKA pin input External clock: counts on TCLKB pin input External clock: counts on TCLKC pin input 1 Internal clock: counts on o/1024 Note: This setting is ignored when channel 2 is in phase counting mode. TCR4 0 0 1 1 0 1 0 1 0 1 0 1 0 Internal clock: counts on o/1 Internal clock: counts on o/4 Internal clock: counts on o/16 Internal clock: counts on o/64 External clock: counts on TCLKA pin input External clock: counts on TCLKC pin input Internal clock: counts on o/1024 1 Counts on TCNT5 overflow/underflow Note: This setting is ignored when channel 4 is in phase counting mode. TCR5 0 0 1 1 0 1 0 1 0 1 0 1 0 1 Internal clock: counts on o/1 Internal clock: counts on o/4 Internal clock: counts on o/16 Internal clock: counts on o/64 External clock: counts on TCLKA pin input External clock: counts on TCLKC pin input Internal clock: counts on o/256 External clock: counts on TCLKD pin input Note: This setting is ignored when channel 5 is in phase counting mode. Clock edge 1, 0 CKEG1 0 1 CKEG0 0 1 -- Counts on rising edge. Counts on falling edge. Counts on both edges. Note: Internal clock edge selection is valid only when the input clock is o/4 or slower. This setting is ignored when the input clock is o/1 or an overflow or underflow in another channel is selected. Counter clear 2, 1, 0 Reserve*2 0 CCLR1 0 1 CCLR0 0 1 0 1 TCNT clearing disabled. TCNT cleared at TGRA compare match/input capture. TCNT cleared at TGRB compare match/input capture. TCNT cleared when other channel counters with synchronized clearing or synchronized operation are cleared.*1 Notes: *1 Sync operation is selected by setting 1 in the TSYR SYNC bit. *2 Bit 7 of channels 1, 2, 4, and 5 is reserved. This bit always returns 0 when read, and cannot be written to. 1255 TMDR1--Timer Mode Register 1 TMDR2--Timer Mode Register 2 TMDR4--Timer Mode Register 4 TMDR5--Timer Mode Register 5 Channel 1: TMDR1 Channel 2: TMDR2 Channel 4: TMDR4 Channel 5: TMDR5 Bit : 7 -- Initial value : R/W : 1 -- Modes 3 to 0 MD3*1 0 MD2*2 0 MD1 0 1 1 0 1 1 * * MD0 0 1 0 1 0 1 0 1 * H'FF21 H'FF31 H'FE91 H'FEA1 TPU1 TPU2 TPU4 TPU5 6 -- 1 -- 5 -- 0 -- 4 -- 0 -- 3 MD3 0 R/W 2 MD2 0 R/W 1 MD1 0 R/W 0 MD0 0 R/W Normal operation Reserved PWM mode 1 PWM mode 2 Phase calculation mode 1 Phase calculation mode 2 Phase calculation mode 3 Phase calculation mode 4 -- * : Don't care Notes: *1 MD3 is a reserved bit. Only write 0 to this bit. *2 Phase calculation mode cannot be set for channels 0 and 3. Only write 0 to MD2. 1256 TIER1--Timer Interrupt Enable Register 1 TIER2--Timer Interrupt Enable Register 2 TIER4--Timer Interrupt Enable Register 4 TIER5--Timer Interrupt Enable Register 5 Channel 1: TIER1 Channel 2: TIER2 Channel 4: TIER4 Channel 5: TIER5 Bit : 7 TTGE Initial value : R/W : 0 R/W 6 -- 1 -- 5 TCIEU 0 R/W 4 TCIEV 0 R/W H'FF24 H'FF34 H'FE94 H'FEA4 TPU1 TPU2 TPU4 TPU5 3 -- 0 -- 2 -- 0 -- 1 TGIEB 0 R/W 0 TGIEA 0 R/W Underflow interrupt enable 0 1 TCFU interrupt request (TCIU) disabled. TCFU interrupt request (TCIU) enabled. A/D conversion start request enable 0 1 A/D conversion start request generation disabled. A/D conversion start request generation enabled. Overflow interrupt enable 0 1 TCFV interrupt request (TCIV) disabled. TCFV interrupt request (TCIV) enabled. TGR interrupt enable B 0 1 TGFB bit interrupt request (TGIB) disabled. TGFB bit interrupt request (TGIB) enabled. TGR interrupt enable A 0 1 TGFA bit interrupt request (TGIA) disabled. TGFA bit interrupt request (TGIA) enabled. 1257 TSR1--Timer Status Register 1 TSR2--Timer Status Register 2 TSR4--Timer Status Register 4 TSR5--Timer Status Register 5 Channel 1: TSR1 Channel 2: TSR2 Channel 4: TSR4 Channel 5: TSR5 Bit : 7 TCFD Initial value : R/W : 1 R 6 -- 1 -- 5 TCFU 0 4 TCFV 0 H'FF25 H'FF35 H'FE95 H'FEA5 TPU1 TPU2 TPU4 TPU5 3 -- 0 -- 2 -- 0 -- 1 TGFB 0 0 TGFA 0 R/(W)*1 R/(W)*1 R/(W)*1 R/(W)*1 Underflow flag 0 1 [Clearing condition] Writing 0 to TCFU after reading TCFU=1. [Setting condition] When the TCNT value underflows (H'0000 H'FFFF). Count direction flag 0 1 TCNT counts down. TCNT counts up. Overflow flag 0 1 [Clearing condition] Writing 0 to TCFV after reading TCFV=1. [Setting condition] When the TCNT value overflows (H'FFFF H'0000). Input capture/output compare flag B 0 [Clearing conditions] (1) When the DTC*2 is started by a TGIB interrupt and the DTC*2 MRB DISEL bit is 0; (2) Writing 0 to TGFB after reading TGFB=1. [Setting conditions] (1) When TGRB is functioning as the output compare register and TCNT= TGRB; (2) When TGRB is functioning as the input capture register and the value of TCNT is sent to TGRB by the input capture signal. Input capture/output compare flag A 0 [Clearing conditions] (1) When the DTC*2 is started by a TGIA interrupt and the DTC*2 MRB DISEL bit is 0; (2) When the DMAC*2 is started by a TGIA interrupt and the DMAC*2 DMABCR DTA bit is 1; (3) Writing 0 to TGFA after reading TGFA=1. [Setting conditions] (1) When TGRA is functioning as the output compare register and TCNT= TGRA; (2) When TGRA is functioning as the input capture register and the value of TCNT is sent to TGRA by the input capture signal. 1 1 Notes: *1 Only 0 can be written to these bits (to clear these flags). *2 This function is not available in the H8S/2695. 1258 TSTR--Timer Start Register Bit : 7 -- Initial value : R/W : 0 -- 6 -- 0 -- 5 CST5 0 R/W 4 CST4 0 R/W H'FEB0 3 CST3 0 R/W 2 CST2 0 R/W 1 TPU Common 0 CST0 0 R/W CST1 0 R/W Counter start 5 to 0 0 1 TCNTn counting operation disabled. TCNTn counting operation enabled. (n= 5 to 0) Note: When the TIOC pin is operating as an output pin, writing 0 to a CST bit disables counting. The TIOC pins output compare output level is maintained. When a CST bit is 0, the output level of the pin is updated to the set initial output value by writing to TIOR. TSYR--Timer Synchro Register Bit : 7 -- Initial value : R/W : 0 -- 6 -- 0 -- 5 SYNC5 0 R/W 4 SYNC4 0 R/W H'FEB1 3 SYNC3 0 R/W 2 SYNC2 0 R/W 1 TPU Common 0 SYNC0 0 R/W SYNC1 0 R/W Timer sync 5 to 0 0 1 TCNTn operate independently (TCNTs are preset and cleared independently of other channels) TCNTn operate in sync mode. Synchronized TCNT presetting and clearing enabled. (n= 5 to 0) The SYNC bit of a minimum of two channels must be set to 1 in order to select sync operation. To enable sync clearing, in addition to the SYNC bits, the TCR CCLR2 to CCLR0 bits must be set for the TCNT clearing factors. Notes: 1. 2. 1259 IPRA--Interrupt Priority Register A IPRB--Interrupt Priority Register B IPRC--Interrupt Priority Register C IPRD--Interrupt Priority Register D IPRE--Interrupt Priority Register E IPRF--Interrupt Priority Register F IPRG--Interrupt Priority Register G IPRH--Interrupt Priority Register H IPRI--Interrupt Priority Register I IPRJ--Interrupt Priority Register J IPRK--Interrupt Priority Register K IPRL--Interrupt Priority Register L IPRO--Interrupt Priority Register O Bit : 7 -- Initial value : R/W : 0 -- 6 IPR6 1 R/W 5 IPR5 1 R/W 4 IPR4 1 R/W H'FEC0 H'FEC1 H'FEC2 H'FEC3 H'FEC4 H'FEC5 H'FEC6 H'FEC7 H'FEC8 H'FEC9 H'FECA H'FECB H'FECE 3 -- 0 -- 2 IPR2 1 R/W Interrupt Controller 1 IPR1 1 R/W 0 IPR0 1 R/W Interrupt factors vs IPR Register IPRA IPRB IPRC IPRD IPRE IPRF IPRG IPRH IPRI IPRJ IPRK IPRL IPRO IRQ0 IRQ2 IRQ3 IRQ6 IRQ7 Watchdog timer 0 PC brake* TPU channel 0 TPU channel 2 TPU channel 4 8-bit timer channel 0* DMAC* SCI channel 1 8-bit timer 2, 3* SCI channel 3 Bit 6 to 4 IRQ1 IRQ4 IRQ5 DTC* Refresh timer ADC Watchdog timer 1* TPU channel 1 TPU channel 3 ITPU channel 5 8-bit timer channel 1* SCI channel 0 SCI channel 2 IIC (optional)* SCI channel 4 2 to 0 Note: * This function is not available in the H8S/2695. 1260 ABWCR--Bus Width Control Register Bit : 7 ABW7 Modes 5 to 7 : Initial value : R/W Mode 4 Initial value : R/W : 0 R/W 0 R/W 0 R/W 0 R/W : 1 R/W 1 R/W 1 R/W 1 R/W 6 ABW6 5 ABW5 4 ABW4 H'FED0 3 ABW3 1 R/W 0 R/W 2 ABW2 1 R/W 0 R/W Bus Controller 1 ABW1 1 R/W 0 R/W 0 ABW0 1 R/W 0 R/W Area 7 to 0 bus width control 0 1 Sets area n to 16-bit access. Sets area n to 8-bit access. (n= 7 to 0) ASTCR--Access State Control Register Bit : 7 AST7 Initial value : R/W : 1 R/W 6 AST6 1 R/W 5 AST5 1 R/W 4 AST4 1 R/W H'FED1 3 AST3 1 R/W 2 AST2 1 R/W 1 Bus Controller 0 AST0 1 R/W AST1 1 R/W Area 7 to 0 access state control 0 1 Area n set as 2-state access area. Insertion of wait states in area n external area access is disabled. External area access of area n set as 3-state access area. Insertion of wait states in area n external area access is enabled. (n= 7 to 0) 1261 WCRH--Wait Control Register H Bit : 7 W71 Initial value : R/W : 1 R/W 6 W70 1 R/W 5 W61 1 R/W 4 W60 1 R/W H'FED2 3 W51 1 R/W 2 W50 1 R/W 1 Bus Controller 0 W40 1 R/W W41 1 R/W Area 6 wait control 1, 0 W61 0 1 W60 0 1 0 1 Area 7 wait control 1, 0 W71 0 1 W70 0 1 0 1 No program wait inserted when accessing external area of area 7. 1 program wait state inserted when accessing external area of area 7. 2 program wait states inserted when accessing external area of area 7. 3 program wait states inserted when accessing external area of area 7. No program wait inserted when accessing external area of area 6. 1 program wait state inserted when accessing external area of area 6. 2 program wait states inserted when accessing external area of area 6. 3 program wait states inserted when accessing external area of area 6. Area 5 wait control 1, 0 W51 0 1 W50 0 1 0 1 No program wait inserted when accessing external area of area 5. 1 program wait state inserted when accessing external area of area 5. 2 program wait states inserted when accessing external area of area 5. 3 program wait states inserted when accessing external area of area 5. Area 4 wait control 1, 0 W41 0 1 W40 0 1 0 1 No program wait inserted when accessing external area of area 4. 1 program wait state inserted when accessing external area of area 4. 2 program wait states inserted when accessing external area of area 4. 3 program wait states inserted when accessing external area of area 4. 1262 WCRL--Wait Control Register Bit : 7 W31 Initial value : R/W : 1 R/W 6 W30 1 R/W 5 W21 1 R/W 4 W20 1 R/W H'FED3 3 W11 1 R/W 2 W10 1 R/W 1 Bus Controller 0 W00 1 R/W W01 1 R/W Area 2 wait control W21 0 1 W20 0 1 0 1 Area 3 wait control W31 0 1 W30 0 1 0 1 No program wait inserted when accessing external area of area 3. 1 program wait state inserted when accessing external area of area 3. 2 program wait states inserted when accessing external area of area 3. 3 program wait states inserted when accessing external area of area 3. No program wait inserted when accessing external area of area 2. 1 program wait state inserted when accessing external area of area 2. 2 program wait states inserted when accessing external area of area 2. 3 program wait states inserted when accessing external area of area 2. Area 1 wait control W11 0 1 W10 0 1 0 1 No program wait inserted when accessing external area of area 1. 1 program wait state inserted when accessing external area of area 1. 2 program wait states inserted when accessing external area of area 1. 3 program wait states inserted when accessing external area of area 1. Area 0 wait control W01 0 1 W00 0 1 0 1 No program wait inserted when accessing external area of area 0. 1 program wait state inserted when accessing external area of area 0. 2 program wait states inserted when accessing external area of area 0. 3 program wait states inserted when accessing external area of area 0. 1263 BCRH--Bus Control Register H Bit : 7 ICIS1 Initial value : R/W : 1 R/W 6 ICIS0 1 R/W 5 0 R/W 4 1 R/W H'FED4 3 0 R/W 2 RMTS2*1 0 R/W Bus Controller 1 RMTS1*1 0 R/W 0 RMTS0*1 0 R/W BRSTRM BRSTS1 BRSTS0 Burst cycle select 1 0 1 Burst cycle = 1 state. Burst cycle = 2 states. Burst ROM enable 0 1 Area 0 is basic bus interface. (Initial value) Area 0 is burst ROM interface. Idle cycle insertion 0 0 1 No idle cycle is inserted when an external read cycle follows an external write cycle. An idle cycle is inserted when an external read cycle follows an external write cycle. (Initial value) Idle cycle insertion 1 0 1 No idle cycle is inserted when an external read cycle follows an external read cycle of another area. An idle cycle is inserted when an external read cycle follows an external read cycle of another area. (Initial value) Burst cycle select 0 0 1 RAM type select RMTS2 0 RMTS1 0 1 1 1 RMTS0 0 1 0 1 1 Normal area Area 5 Area 4 Normal area DRAM area* Contiguous DRAM area* Area 3 Area 2 DRAM area* DRAM area* Normal area Burst access = 4 words max. Burst access = 8 words max. Notes: When all areas selected in the DRAM area are set for 8-bit access, the PF2 pin can be used as an I/O port or BREQO or WAIT. When set for contiguous DRAM the bus widths for areas 2 to 5 and the number of access states (number of programmable waits) must be set to the same values. Do not attempt to set combinations other than those shown in the table. * This function is not available in the H8S/2695. Note: *1 In the H8S/2695 only a 0 may be written to RMTS2, RMTS1, or RMTS0. 1264 BCRL--Bus Control Register L Bit : 7 0 R/W 6 0 R/W 5 -- 0 -- 4 OES* 0 R/W H'FED5 3 DDS* 1 R/W 2 RCTS* 0 R/W 1 Bus Controller 0 WAITE 0 R/W BRLE BREQOE Initial value : R/W : WDBE 0 R/W OE select 0 1 CS3 pin used as port or as CS3 signal output. When only area 2 is set as DRAM, or when areas 2 to 5 are set as contiguous DRAM space, the CS3 pin is used as the OE pin. BREQO pin enable 0 1 BREQO output disabled. BREQO can be used as an I/O port. BREQO output enabled. Bus release enable 0 1 Release of external bus privileges disabled. BREQ, BACK, and BREQO can be used as I/O ports. Release of external bus privileges enabled. DACK timing select 0 When performing DMAC single address transmission to the DRAM space, always perform full access. The DACK signal level changes to LOW from Tr or T1 cycle. Burst access is also available when performing DMAC single address transmission to the DRAM space. The DACK signal level changes to LOW from TC1 or T2 cycle. 1 Read CAS timing select 0 1 CAS signal output timing is the same when reading and writing. When reading, the CAS signal is asserted one half cycle faster than when writing. Write data buffer enable 0 1 WAIT pin enable 0 1 Wait input via WAIT pin disabled. The WAIT pin can be used as an I/O port. Wait input via WAIT pin enabled. Do not use write data buffer function. Use write data buffer function. Note: * This function is not available in the H8S/2695. 1265 MCR--Memory Control Register (This function is not available in the H8S/2695.) Bit : 7 TPC Initial value : R/W : 0 R/W 6 BE 0 R/W 5 RCDM 0 R/W 4 CW2 0 R/W H'FED6 3 MXC1 0 R/W 2 MXC0 0 R/W 1 Bus Controller 0 RLW0 0 R/W RLW1 0 R/W Reserved bit RAS down mode 0 1 DRAM interface: RAS up mode selected. DRAM interface: RAS down mode selected. Burst access enable 0 1 Burst access disabled (permanently full access). DRAM space accessed in high-speed page mode. TP cycle control 0 1 One precharge cycle state inserted. Two precharge cycle states inserted. Multiplex shift count 1, 0 MXC1 0 MXC0 0 8-bit shift (1) When set for 8-bit access space: Row addresses A23 to A8 are targets of comparison. (2) When set for 16-bit access space: Row addresses A23 to A9 are targets of comparison. 9-bit shift (1) When set for 8-bit access space: Row addresses A23 to A9 are targets of comparison. (2) When set for 16-bit access space: Row addresses A23 to A10 are targets of comparison. 10-bit shift (1) When set for 8-bit access space: Row addresses A23 to A10 are targets of comparison. (2) When set for 16-bit access space: Row addresses A23 to A11 are targets of comparison. -- Refresh cycle wait control 1, 0 RLW1 0 1 RLW0 0 1 0 1 Do not insert wait state. Insert 1 wait state. Insert 2 wait states. Insert 3 wait states. 1 1 0 1 1266 DRAMCR--DRAM Control Register Bit : 7 RFSHE Initial value : R/W : 0 R/W 6 CBRM 0 R/W 5 RMODE 0 R/W 4 CMF 0 R/W H'FED7 3 CMIE 0 R/W 2 CKS2 0 R/W 1 Bus Controller 0 CKS0 0 R/W (This function is not available in the H8S/2695.) CKS1 0 R/W Refresh mode 0 1 Do not perform self-refresh in software standby mode. Perform self-refresh in software standby mode. CBR refresh mode 0 1 External access enabled at CAS-before-RAS refresh. External access disabled at CAS-before-RAS refresh. Refresh control 0 1 Do not perform refresh control. Perform refresh control. Compare match flag 0 1 [Clearing condition] Writing 0 to CMF flag after reading CMF=1. [Setting condition] When RTCNT=RTCOR. Compare match interrupt enable 0 1 CMF flag interrupt request (CMI) disabled. CMF flag interrupt request (CMI) enabled. Refresh counter clock select CKS2 0 CKS1 0 1 1 0 1 CKS0 0 1 0 1 0 1 0 1 No counting operation Counting on o/2 Counting on o/8 Counting on o/32 Counting on o/128 Counting on o/512 Counting on o/2048 Counting on o/4096 1267 RTCNT--Refresh Timer Counter (This function is not available in the H8S/2695.) Bit : 7 0 R/W 6 0 R/W 5 0 R/W 4 0 R/W H'FED8 3 0 R/W 2 0 R/W 1 0 Bus Controller 0 0 R/W Initial value : R/W : R/W RTCOR--Refresh Time Constant Register (This function is not available in the H8S/2695.) Bit : 7 1 R/W 6 1 R/W 5 1 R/W 4 1 R/W H'FED9 3 1 R/W 2 1 R/W 1 1 Bus Controller 0 1 R/W Initial value : R/W : R/W RAMER--RAM Emulation Register Bit : 7 -- Initial value : R/W : 0 R 6 -- 0 R 5 -- 0 R/W 4 -- 0 R/W H'FEDB 3 RAMS 0 R/W 2 RAM2 0 R/W 1 RAM1 0 R/W FLASH 0 RAM0 0 R/W Flash memory area selection Addresses Block Name RAMS RAM1 RAM1 RAM0 0 1 1 1 1 1 1 1 1 * 0 0 0 0 1 1 1 1 * 0 0 1 1 0 0 1 1 * 0 1 0 1 0 1 0 1 H'FFD000-H'FFDFFF RAM area 4 kbytes H'000000-H'000FFF H'001000-H'001FFF H'002000-H'002FFF H'003000-H'003FFF H'004000-H'004FFF H'005000-H'005FFF H'006000-H'006FFF H'007000-H'007FFF RAM Select 0 1 EB0 (4 kbytes) EB1 (4 kbytes) EB2 (4 kbytes) EB3 (4 kbytes) EB4 (4 kbytes) EB5 (4 kbytes) EB6 (4 kbytes) EB7 (4 kbytes) * : Don't care Emulation not selected Program/erase-protection of all flash memory blocks is disabled Emulation selected Program/erase-protection of all flash memory blocks is enabled 1268 MAR0AH--Memory Address Register 0AH MAR0AL--Memory Address Register 0AL Bit MAR R/W Bit MAR R/W : : : : : 31 -- 0 -- 15 30 -- 0 -- 14 29 -- 0 -- 13 28 -- 0 -- 12 27 -- 0 -- 11 26 -- 0 -- 10 25 -- 0 -- 9 24 -- 0 H'FEE0 H'FEE2 23 * 22 * 21 * 20 * 19 * 18 * 17 * DMAC DMAC 16 * Initial value : -- R/W R/W R/W R/W R/W R/W R/W R/W 8 7 6 5 4 3 2 1 0 Initial value : * * * * * * * * * * * * * * * * : R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W In short address mode: Specifies transfer destination/transfer source address In full address mode: Specifies transfer destination * : Undefined IOAR0A--I/O Address Register 0A IOAR1A--I/O Address Register 1A Bit IOAR R/W : : * * * * * * * * 15 14 13 12 11 10 9 8 H'FEE4 H'FEF4 7 * 6 * 5 * 4 * 3 * 2 * 1 * DMAC DMAC 0 * Initial value : : R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W In short address mode: Specifies transfer destination/transfer source address In full address mode: Not used * : Undefined 1269 ETCR0A--Transfer Count Register 0A Bit ETCR0A R/W Sequential mode and idle mode Normal mode Repeat mode Block transfer mode : : * * * * * * * * 15 14 13 12 11 10 9 8 H'FEE6 7 6 5 4 3 2 DMAC 1 0 Initial value : : * * * * * * * * R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W Transfer counter Holds number of transfers Holds block size Transfer counter Block size counter *: Undefined MAR0BH--Memory Address Register 0BH MAR0BL--Memory Address Register 0BL Bit MAR0BH R/W Bit MAR0BL R/W : : : : : * * * * * * * * 31 -- 0 -- 15 30 -- 0 -- 14 29 -- 0 -- 13 28 -- 0 -- 12 27 -- 0 -- 11 26 -- 0 -- 10 25 -- 0 -- 9 24 -- 0 H'FEE8 H'FEEA 23 * 22 * 21 * 20 * 19 * 18 * 17 * DMAC DMAC 16 * Initial value : -- R/W R/W R/W R/W R/W R/W R/W R/W 8 7 * 6 * 5 * 4 * 3 * 2 * 1 * 0 * Initial value : : R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W In short address mode: Specifies transfer destination/transfer source address In full address mode: Specifies transfer destination *: Undefined 1270 IOAR0B--I/O Address Register 0B IOAR1B--I/O Address Register 1B Bit IOAR0B R/W : : * * * * * * * * 15 14 13 12 11 10 9 8 H'FEEC H'FEFC 7 * 6 * 5 * 4 * 3 * 2 * 1 * DMAC DMAC 0 * Initial value : : R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W In short address mode: Specifies transfer destination/transfer source address In full address mode: Not used *: Undefined ETCR0B--Transfer Count Register 0B Bit ETCR0B R/W Sequential mode and idle mode Repeat mode Block transfer mode Note: Not used in normal mode. : : * * * * * * * * 15 14 13 12 11 10 9 8 H'FEEE 7 6 5 4 3 2 DMAC 1 0 Initial value : * * * * * * * * : R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W Transfer counter Holds number of transfers Block transfer counter Transfer counter *: Undefined 1271 MAR1AH--Memory Address Register 1AH MAR1AL--Memory Address Register 1AL Bit MAR1AH R/W Bit MAR1AL R/W : : : : : * * * * * * * * 31 -- 0 -- 15 30 -- 0 -- 14 29 -- 0 -- 13 28 -- 0 -- 12 27 -- 0 -- 11 26 -- 0 -- 10 25 -- 0 -- 9 24 -- 0 H'FEF0 H'FEF2 23 * 22 * 21 * 20 * 19 * 18 * 17 * DMAC DMAC 16 * Initial value : -- R/W R/W R/W R/W R/W R/W R/W R/W 8 7 * 6 * 5 * 4 * 3 * 2 * 1 * 0 * Initial value : : R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W In short address mode: Specifies transfer destination/transfer source address In full address mode: Specifies transfer destination *: Undefined ETCR1A--Transfer Count Register 1A Bit ETCR1A R/W Sequential mode Idle mode Normal mode Repeat mode Block transfer mode : : * * * * * * * * 15 14 13 12 11 10 9 8 H'FEF6 7 6 5 4 3 2 DMAC 1 0 Initial value : * * * * * * * * : R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W Transfer counter Holds number of transfers Holds block size Transfer counter Block size counter *: Undefined 1272 MAR1BH--Memory Address Register 1BH MAR1BL--Memory Address Register 1BL Bit MAR1BH R/W Bit MAR1BL R/W : : : : : * * * * * * * * 31 -- 0 -- 15 30 -- 0 -- 14 29 -- 0 -- 13 28 -- 0 -- 12 27 -- 0 -- 11 26 -- 0 -- 10 25 -- 0 -- 9 24 -- 0 H'FEF8 H'FEFA 23 * 22 * 21 * 20 * 19 * DMAC DMAC 18 * 17 * 16 * Initial value : -- R/W R/W R/W R/W R/W R/W R/W R/W 8 7 * 6 * 5 * 4 * 3 * 2 * 1 * 0 * Initial value : : R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W In short address mode: Specifies transfer destination/transfer source address In full address mode: Not used *: Undefined ETCR1B--Transfer Count Register 1B Bit ETCR1B R/W Sequential mode and idle mode Repeat mode Block transfer mode Note: Not used in normal mode. : : * * * * * * * * 15 14 13 12 11 10 9 8 H'FEFE 7 6 5 4 DMAC 3 2 1 0 Initial value : * * * * * * * * : R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W Transfer counter Holds number of transfers Block transfer counter Transfer counter *: Undefined 1273 P1DR--Port 1 Data Register Bit : 7 P17DR Initial value : R/W : 0 R/W 6 P16DR 0 R/W 5 P15DR 0 R/W 4 P14DR 0 R/W H'FF00 3 P13DR 0 R/W 2 P12DR 0 R/W 1 P11DR 0 R/W 0 Port P10DR 0 R/W P3DR--Port 3 Data Register Bit : 7 P37DR Initial value : R/W : 0 R/W 6 P36DR 0 R/W 5 P35DR 0 R/W 4 P34DR 0 R/W H'FF02 3 P33DR 0 R/W 2 P32DR 0 R/W 1 P31DR 0 R/W 0 Port P30DR 0 R/W P7DR--Port 7 Data Register Bit : 7 P77DR Initial value : R/W : 0 R/W 6 P76DR 0 R/W 5 P75DR 0 R/W 4 P74DR 0 R/W H'FF06 3 P73DR 0 R/W 2 P72DR 0 R/W 1 P71DR 0 R/W 0 Port P70DR 0 R/W PADR--Port A Data Register Bit : 7 -- R/W : -- 6 -- -- 5 -- -- 4 -- -- H'FF09 3 PA3DR 0 R/W 2 PA2DR 0 R/W 1 PA1DR 0 R/W 0 Port PA0DR 0 R/W Initial value : Undefined Undefined Undefined Undefined PBDR--Port B Data Register Bit : 7 PB7DR Initial value : R/W : 0 R/W 6 PB6DR 0 R/W 5 PB5DR 0 R/W 4 PB4DR 0 R/W H'FF0A 3 PB3DR 0 R/W 2 PB2DR 0 R/W 1 PB1DR 0 R/W 0 Port PB0DR 0 R/W 1274 PCDR--Port C Data Register Bit : 7 PC7DR Initial value : R/W : 0 R/W 6 PC6DR 0 R/W 5 PC5DR 0 R/W 4 PC4DR 0 R/W H'FF0B 3 PC3DR 0 R/W 2 PC2DR 0 R/W 1 PC1DR 0 R/W 0 Port PC0DR 0 R/W PDDR--Port D Data Register Bit : 7 PD7DR Initial value : R/W : 0 R/W 6 PD6DR 0 R/W 5 PD5DR 0 R/W 4 PD4DR 0 R/W H'FF0C 3 PD3DR 0 R/W 2 PD2DR 0 R/W 1 PD1DR 0 R/W 0 Port PD0DR 0 R/W PEDR--Port E Data Register Bit : 7 PE7DR Initial value : R/W : 0 R/W 6 PE6DR 0 R/W 5 PE5DR 0 R/W 4 PE4DR 0 R/W H'FF0D 3 PE3DR 0 R/W 2 PE2DR 0 R/W 1 PE1DR 0 R/W 0 Port PE0DR 0 R/W PFDR--Port F Data Register Bit : 7 PF7DR Initial value : R/W : 0 R/W 6 PF6DR 0 R/W 5 PF5DR 0 R/W 4 PF4DR 0 R/W H'FF0E 3 PF3DR 0 R/W 2 PF2DR 0 R/W 1 PF1DR 0 R/W 0 Port PF0DR 0 R/W PGDR--Port G Data Register Bit : 7 -- R/W : -- 6 -- -- 5 -- -- 4 0 R/W H'FF0F 3 0 R/W 2 0 R/W 1 0 R/W 0 0 R/W Port PG4DR PG3DR PG2DR PG1DR PG0DR Initial value : Undefined Undefined Undefined 1275 DMAWER--DMA Write Enable Register Bit DMAWER R/W : : : 7 -- 0 -- 6 -- 0 -- 5 -- 0 -- 4 -- 0 -- H'FF60 3 WE1B 0 R/W 2 WE1A 0 R/W 1 WE0B 0 R/W 0 DMAC (This function is not available in the H8S/2695.) WE0A 0 R/W Initial value : Write enable 1B 0 1 Disables writing to all DMACR1B bits, DMABCR bits 11, 7, and 3, and DMATCR bit 5. (initial value) Enables writing to all DMACR1B bits, DMABCR bits 11, 7, and 3, and DMATCR bit 5. Write enable 1A 0 1 Disables writing to all DMACR1A bits, and DMABCR bits 10, 6, and 2. (initial value) Enables writing to all DMACR1A bits, and DMABCR bits 10, 6, and 2. Write enable 0B 0 1 Disables writing to all DMACR0B bits, DMABCR bits 9, 5, and 1, and DMATCR bit 4 (initial value) Enables writing to all DMACR0B bits, DMABCR bits 9, 5, and 1, and DMATCR bit 4. Write enable 0A 0 1 Disables writing to all DMACR0A bits, and DMABCR bits 8, 4, and 0. (initial value) Enables writing to all DMACR0A bits, and DMABCR bits 8, 4, and 0. DMATCR--DMA Terminal Control Register Bit DMATCR R/W : : : 7 -- 0 -- 6 -- 0 -- 5 TEE1 0 R/W 4 TEE0 0 R/W H'FF61 3 -- 0 -- 2 -- 0 -- 1 -- 0 -- 0 -- 0 -- DMAC (This function is not available in the H8S/2695.) Initial value : Transfer end pin enable 0 0 1 Disables TEND0 pin output. Enables TEND0 pin output. Transfer end pin enable 1 0 1 Disables TEND1 pin output. Enables TEND1 pin output. 1276 DMACR0A--DMA Control Register 0A DMACR0B--DMA Control Register 0B DMACR1A--DMA Control Register 1A DMACR1B--DMA Control Register 1B Full address mode Bit DMACRA R/W : : : 15 DTSZ 0 R/W 14 SAID 0 R/W 13 SAIDE 0 R/W 12 BLKDIR 0 R/W H'FF62 H'FF63 H'FF64 H'FF65 DMAC DMAC DMAC DMAC (These functions are not available in the H8S/2695.) 11 BLKE 0 R/W 10 -- 0 R/W 9 -- 0 R/W 8 -- 0 R/W Initial value : Block Direction/Block Enable 0 0 1 1 0 1 Transfer in normal mode Transfer in block transfer mode, destination is block area Transfer in normal mode Transfer in block transfer mode, source is block area Source Address Increment/Decrement 0 0 1 MARA is fixed MARA is incremented after a data transfer * When DTSZ = 0, MARA is incremented by 1 after a transfer * When DTSZ = 1, MARA is incremented by 2 after a transfer MARA is fixed MARA is decremented after a data transfer * When DTSZ = 0, MARA is decremented by 1 after a transfer * When DTSZ = 1, MARA is decremented by 2 after a transfer 1 0 1 Data Transfer Size 0 1 Byte-size transfer Word-size transfer 1277 Full address mode Bit DMACRB R/W : : : 7 -- 0 R/W 6 DAID 0 R/W 5 DAIDE 0 R/W 4 -- 0 R/W 3 DTF3 0 R/W 2 DTF2 0 R/W 1 DTF1 0 R/W 0 DTF0 0 R/W Initial value : Data Transfer Factor DTF3 DTF2 DTF1 DTF0 0 0 0 0 1 1 0 1 1 0 0 1 1 0 1 1 0 0 0 1 1 0 1 1 0 0 1 1 0 1 -- Block Transfer Mode (initial value) -- -- Activated by DREQ pin falling edge input Activated by A/D converter conversion end interrupt Activated by DREQ pin falling edge input Normal Mode Activated by DREQ pin low-level input* Activated by DREQ pin low-level input Activated by SCI channel 0 transmit-data-empty interrupt Activated by SCI channel 0 reception complete interrupt Activated by SCI channel 1 transmit-data-empty interrupt Activated by SCI channel 1 reception complete interrupt Activated by TPU channel 0 compare match/input capture A interrupt Activated by TPU channel 1 compare match/input capture A interrupt Activated by TPU channel 2 compare match/input capture A interrupt Activated by TPU channel 3 compare match/input capture A interrupt Activated by TPU channel 4 compare match/input capture A interrupt Activated by TPU channel 5 compare match/input capture A interrupt -- -- -- -- Auto-request (cycle steal) Auto-request (burst) -- -- -- -- -- -- -- -- Note: * Detected as a low level in the first transfer after transfer is enabled. Destination Address Increment/Decrement 0 0 1 MARB is fixed MARB is incremented after a data transfer * When DTSZ = 0, MARB is incremented by 1 after a transfer * When DTSZ = 1, MARB is incremented by 2 after a transfer MARB is fixed MARB is decremented after a data transfer * When DTSZ = 0, MARB is decremented by 1 after a transfer * When DTSZ = 1, MARB is decremented by 2 after a transfer 1 0 1 1278 Short address mode Bit DMACR Initial value Read/Write 7 DTSZ 0 R/W 6 DTID 0 R/W 5 RPE 0 R/W 4 DTDIR 0 R/W 3 DTF3 0 R/W 2 DTF2 0 R/W 1 DTF1 0 R/W 0 DTF0 0 R/W Data Transfer Factor Channel A Data Transfer Size 0 1 Byte-size transfer Word-size transfer 1 0 0 0 0 1 0 1 1 Data Transfer Increment/Decrement 0 MAR is incremented after a data transfer * When DTSZ = 0, MAR is incremented by 1 after a transfer * When DTSZ = 1, MAR is incremented by 2 after a transfer MAR is decremented after a data transfer * When DTSZ = 0, MAR is decremented by 1 after a transfer * When DTSZ = 1, MAR is decremented by 2 after a transfer 1 0 1 1 0 1 0 0 1 1 0 1 1 0 0 1 1 Data Transfer Direction DMABCR SAE 0 1 Repeat Enable Bit 5 DMABCR RPE DTIE 0 0 1 0 1 1 Bit 4 DTDIR 0 1 0 1 Description Transfer with MAR as source address and IOAR as destination address (initial value) Transfer with IOAR as source address and MAR as destination address Transfer with MAR as source address and DACK pin as write strobe Transfer with DACK pin as read strobe and MAR as destination address 0 1 0 0 -- Activated by A/D converter conversion end interrupt -- -- Activated by DREQ pin falling edge input Activated by DREQ pin low-level input Channel B Activated by SCI channel 0 transmit-dataempty interrupt Activated by SCI channel 0 reception complete interrupt Activated by SCI channel 1 transmit-dataempty interrupt Activated by SCI channel 1 reception complete interrupt Activated by TPU channel 0 compare match/ input capture A interrupt Activated by TPU channel 1 compare match/ input capture A interrupt Activated by TPU channel 2 compare match/ input capture A interrupt Activated by TPU channel 3 compare match/ input capture A interrupt Activated by TPU channel 4 compare match/ input capture A interrupt Activated by TPU channel 5 compare match/ input capture A interrupt -- -- 1 Description Transfer in sequential mode (no transfer end interrupt) (initial value) Transfer in sequential mode (with transfer end interrupt) Transfer in repeat mode (no transfer end interrupt) Transfer in idle mode (with transfer end interrupt) 1279 DMABCR--DMA Band Control Register Short address mode Bit : 15 FAE1 0 R/W 14 FAE0 0 R/W 13 SAE1 0 R/W 12 SAE0 0 R/W 11 DTA1B 0 R/W H'FF66 DMAC (This function is not available in the H8S/2695.) 10 DTA1A 0 R/W 9 DTA0B 0 R/W 8 DTA0A 0 R/W DMABCRH : Initial value : R/W : Single address enable 0 0 1 Transfer in dual address mode. Transfer in single address mode. Data transfer acknowledge 1B 0 1 Clearing of selected internal interrupt factor at DMA transfer disabled. Clearing of selected internal interrupt factor at DMA transfer enabled. Single address enable 1 0 1 Transfer in dual address mode. Transfer in single address mode. Data transfer acknowledge 1A 0 1 Clearing of selected internal interrupt factor at DMA transfer disabled. Clearing of selected internal interrupt factor at DMA transfer enabled. Full address enable 0 0 1 Short address mode. Full address mode. Data transfer acknowledge 0B 0 1 Clearing of selected internal interrupt factor at DMA transfer disabled. Clearing of selected internal interrupt factor at DMA transfer enabled. Full address enable 1 0 1 Short address mode. Full address mode. Data transfer acknowledge 0A 0 1 Clearing of selected internal interrupt factor at DMA transfer disabled. Clearing of selected internal interrupt factor at DMA transfer enabled. Bit : 7 DTE1B 0 R/W 6 DTE1A 0 R/W 5 DTE0B 0 R/W 4 DTE0A 0 R/W 3 0 R/W 2 0 R/W 1 0 R/W 0 0 R/W DMABCRL : Initial value : R/W : DTIE1B DTIE1A DTIE0B DTIE0A Data transfer enable 0A 0 1 Data transfer disabled. Data transfer enabled. Data transfer interrupt enable 1B 0 1 Transfer end interrupt disabled. Transfer end interrupt enabled. Data transfer enable 0B 0 1 Data transfer disabled. Data transfer enabled. Data transfer interrupt enable 1A 0 1 Transfer end interrupt disabled. Transfer end interrupt enabled. Data transfer enable 1A 0 1 Data transfer disabled. Data transfer enabled. Data transfer interrupt enable 0B 0 1 Transfer end interrupt disabled. Transfer end interrupt enabled. Data transfer enable 1B 0 1 Data transfer disabled. Data transfer enabled. Data transfer interrupt enable 0A 0 1 Transfer end interrupt disabled. Transfer end interrupt enabled. 1280 Full address mode Bit : 15 FAE1 0 R/W 14 FAE0 0 R/W 13 -- 0 R/W 12 -- 0 R/W 11 DTA1 0 R/W 10 -- 0 R/W 9 DTA0 0 R/W 8 -- 0 R/W DMABCRH : Initial value : R/W : Data transfer acknowledge 0 0 Clearing of selected internal interrupt source at time of DMA transfer is disabled 1 Clearing of selected internal interrupt source at time of DMA transfer is enabled Data transfer acknowledge 1 0 1 Full address enable 0 0 Short address mode 1 Full address mode Full address enable 1 0 Short address mode 1 Full address mode Clearing of selected internal interrupt source at time of DMA transfer is disabled Clearing of selected internal interrupt source at time of DMA transfer is enabled 1281 Bit : 7 DTME1 0 R/W 6 DTE1 0 R/W 5 DTME0 0 R/W 4 DTE0 0 R/W 3 0 R/W 2 0 R/W 1 0 R/W 0 0 R/W DMABCRL : Initial value : R/W : DTIE1B DTIE1A DTIE0B DTIE0A Data transfer end interrupt enable 0A 0 Transfer end interrupt disabled 1 Transfer end interrupt enabled Data transfer end interrupt enable 1A 0 Transfer end interrupt disabled 1 Transfer end interrupt enabled Data transfer interrupt enable 0B 0 Transfer break interrupt disabled 1 Transfer break interrupt enabled Data transfer interrupt enable 1B 0 Transfer break interrupt disabled 1 Transfer break interrupt enabled Data transfer enable 0 0 Data transfer disabled 1 Data transfer enabled Data transfer master enable 0 0 Data transfer disabled. In normal mode, cleared to 0 by an NMI interrupt 1 Data transfer enabled Data transfer enable 1 0 Data transfer disabled 1 Data transfer enabled Data transfer master enable 1 0 Data transfer disabled. In burst mode, cleared to 0 by an NMI interrupt 1 Data transfer enabled 1282 TCSR0--Timer Control/Status Register 0 Bit : 7 OVF Initial value : R/W : 0 R/(W)* 6 WT/IT 0 R/W 5 TME 0 R/W 4 -- 1 -- H'FF74 (W), H'FF74 (R) 3 -- 1 -- 2 CKS2 0 R/W 1 CKS1 0 R/W WDT0 0 CKS0 0 R/W Clock select 2 to 0 WDT0 input clock select Overflow cycle* (when o= 25MHz) 0 0 0 o/2 20.4 s 1 o/64 652.8 s 1 0 o/128 1.3 ms 1 o/512 5.2 ms 1 0 0 o/2048 20.9 ms 1 o/8192 83.6 ms 1 0 o/32768 334.2 ms 1 o/131072 1.34 s Note: * The overflow cycle starts when TCNT starts counting from H'00 and ends when an overflow occurs. Timer enable 0 1 Initializes TCNT to H'00 and disables the counting operation. TCNT performs counting operation. CKS2 CKS1 CKS0 Clock Timer mode select 0 1 Interval timer mode: Interval timer interrupt (WOVI) request sent to CPU when overflow occurs at TCNT. Watchdog timer mode: WDTOVF signal output externally when overflow occurs at TCNT. * Note: * See section 15.2.3, Reset Control/Status Register (RSTCSR), for details of when TCNT overflows in watchdog timer mode. Overflow flag 0 1 [Clearing] When 0 is written to OVF bit after reading TCSR when OVF=1. [Setting] When TCNT overflows (changes from H'FF to H'00). When internal reset request generation is selected in watchdog timer mode, OVF is cleared automatically by the internal reset. Notes: * Only 0 can be written to these bits (to clear these flags). TCSR is write-protected by a password to prevent accidental overwriting. For details see section 15.2.5, Notes on Register Access. 1283 TCNT0--Timer Counter 0 TCNT1--Timer Counter 1 Bit : 7 0 R/W 6 0 R/W 5 0 R/W 4 0 R/W H'FF74 (W), H'FF75 (R) H'FFA2 (W), H'FFA3 (R) 3 0 R/W 2 0 R/W 1 0 R/W WDT0 WDT1 0 0 R/W (These functions are not available in the H8S/2695.) Initial value : R/W : Note: TCNT is write-protected by a password to prevent accidental overwriting. For details see section 15.2.5, Notes on Register Access. RSTCSR--Reset Control/Status Register Bit : 7 WOVF Initial value : R/W : 0 R/(W)* 6 RSTE 0 R/W 5 RSTS 0 R/W 4 -- 1 -- H'FF76 (W), H'FF77 (R) 3 -- 1 -- 2 -- 1 -- 1 -- 1 -- WDT0 0 -- 1 -- Reset select 0 1 Reset enable 0 No internal reset on TCNT overflow.* 1 Internal reset performed on TCNT overflow. Note: * The LSI is not internally reset, but TCNT and TCSR in WDT are reset. Watchdog timer overflow flag 0 1 [Clearing condition] Writing 0 to WOVF after reading RSTCSR when WOVF=1. [Setting condition] When, in watchdog timer mode, TCNT overflows (H'FF H'00). Power-on reset. Manual reset. Notes: * Only 0 can be written to these bits (to clear these flags). RSTCSR is write-protected by a password to prevent accidental overwriting. For details see section 15.2.5, Notes on Register Access. 1284 ICCR0--I2C Bus Control Register ICCR1--I2C Bus Control Register Bit : 7 ICE Initial value : R/W : 0 R/W 6 IEIC 0 R/W 5 MST 0 R/W 4 TRS 0 R/W 3 H'FF78 H'FF80 2 BBSY 0 R/W 1 IRIC 0 R/(W)* 0 SCP 0 R/W IIC0 IIC1 (These functions are not available in the H8S/2695.) ACKE 0 R/W Start condition/stop condition prohibit 0 Writing 0 issues a start or stop condition, in combination with the BBSY flag 1 Reading always returns a value of 1 Writing is ignored I2C Bus interface interrupt request flag 0 1 Waiting for transfer, or transfer in progress Interrupt requested Note: * For details see section 18.2.5, I2C Bus Control Register (ICCR). Bus busy 0 Bus is free [Clearing condition] When a stop condition is detected Bus is free [Setting condition] When a stop condition is detected 1 Acknowledge bit judgement selection 0 1 The value of the acknowledge bit is ignored, and continuous transfer is performed If the acknowledge bit is 1, continuous transfer is interrupted Master/slave select, transmit/receive select 0 1 0 1 0 1 Slave receive mode Slave transmit mode Master receive mode Master transmit mode Note: * For details see section 18.2.5, I2C Bus Control Register (ICCR). I2C Bus Interface Interrupt Enable 0 1 Interrupts disabled Interrupts enabled I2C Bus Interface Enable 0 1 I2C bus interface module disabled, with SCL and SDA signal pins set to port function I2C bus interface module internal states initialized SAR and SARX can be accessed I2C bus interface module enabled for transfer operations (pins SCL and SCA are driving the bus) ICMR and ICDR can be accessed Note: * Only 0 can be written, for flag clearing. 1285 ICSR0--I2C Bus Status Register ICSR1--I2C Bus Status Register Bit : 7 ESTP Initial value : R/W : 0 R/(W)* 6 STOP 0 R/(W)* 5 IRTR 0 R/(W)* 4 AASX 0 R/(W)* 3 AL 0 R/(W)* 2 AAS 0 R/(W)* 1 H'FF79 H'FF81 0 ACKB 0 R/W IIC0 IIC1 (These functions are not available in the H8S/2695.) ADZ 0 R/(W)* Acknowledge bit 0 When receiving, 0 is output at acknowledge output timing. When transmitting, this bit shows that an acknowledge (0) has not been sent from the receiving device. When receiving, 1 is output at acknowledge output timing. When transmitting, this bit shows that an acknowledge (1) has been sent from the receiving device. 1 General call address confirmation flag 0 General call address not confirmed [Clearing conditions] (1) When data is written to ICDR (when sending), or when data is read from ICDR (when receiving) (2) When 0 is written after reading ADZ=1 (3) In master mode General call address confirmation [Setting condition] * When general call address is detected is in slave receive mode and FSX = 0 or FS = 0). 1 Slave address confirmation flag 0 Slave address or general call address not confirmed [Clearing conditions] (1) When data is written to ICDR (when sending), or when data is read from ICDR (when receiving) (2) When 0 is written after reading AAS=1 (3) In master mode Slave address or general call address confirmed [Setting condition] * When slave address or general call address is detected in slave receive mode and FS = 0. 1 Arbitration lost flag 0 Secure bus. [Clearing conditions] (1) When data is written to ICDR (when sending), or when data is read (when receiving) (2) When 0 is written after reading AL=1 Bus arbitration lost [Setting conditions] (1) When there is a mismatch between internal SDA and SDA pin at rise in SCL in master transmit mode (2) When the internal SCL level is HIGH at the fall in SCL in master transmit mode. 1 2nd slave address confirmation flag 0 2nd slave address not confirmed [Clearing conditions] (1) When 0 is written after reading AASX=1 (2) When start conditions are detected (3) In master mode 2nd slave address confirmed [Setting condition] * When 2nd slave address is detected in slave receive mode and FSX = 0. 1 I2C bus interface continuous transmit and receive interrupt request flag 0 Transmit wait state, or transmitting [Clearing conditions] (1) When 0 written after reading IRTR=1 (2) When IRIC flag is cleared to 0 Continuous transmit state [Setting conditions] * In I2C bus interface slave mode When 1 is set in TDRE or RDRF flag when AASX=1. * In other than I2C bus interface slave mode When TDRE or RDRF flag is set to 1. 1 Normal end condition detection flag 0 No normal end condition [Clearing conditions] (1) When 0 is written after reading STOP=1 (2) When IRIC flag is cleared to 0 Normal end condition detected in slave mode in I2C bus format [Setting condition] On detection of stop condition on completion of sending frame. * No meaning when in other than slave mode in I2C bus format 1 Error stop condition detection flag 0 No error stop condition [Clearing conditions] (1) When 0 written after reading ESTP=1 (2) When IRIC flag is cleared to 0 * Error stop condition detected in slave mode in I2C bus format [Setting condition] On detection of stop condition while sending frame. * No meaning when in other than slave mode in I2C bus format 1 Note: * Only 0 can be written to these bits (to clear these flags). 1286 ICDR0--I2C Bus Data Register ICDR1--I2C Bus Data Register Bit : 7 ICDR7 Initial value : R/W ICDRR Bit : -- R/W 6 ICDR6 -- R/W 5 ICDR5 -- R/W 4 ICDR4 -- R/W H'FF7E H'FF86 3 ICDR3 -- R/W 2 ICDR2 -- R/W 1 ICDR1 -- R/W 0 ICDR0 -- R/W IIC0 IIC1 (These functions are not available in the H8S/2695.) : 7 -- R 6 -- R 5 -- R 4 -- R 3 -- R 2 -- R 1 -- R 0 -- R ICDRR7 ICDRR6 ICDRR5 ICDRR4 ICDRR3 ICDRR2 ICDRR1 ICDRR0 Initial value : R/W ICDRS Bit : : 7 -- -- 6 -- -- 5 -- -- 4 -- -- 3 -- -- 2 -- -- 1 -- -- 0 -- -- ICDRS7 ICDRS6 ICDRS5 ICDRS4 ICDRS3 ICDRS2 ICDRS1 ICDRS0 Initial value : R/W ICDRT Bit : : 7 -- W 6 -- W 5 -- W 4 -- W 3 -- W 2 -- W 1 -- W 0 -- W ICDRT7 ICDRT6 ICDRT5 ICDRT4 ICDRT3 ICDRT2 ICDRT1 ICDRT0 Initial value : R/W : TDRE, RDRF (internal flag) Bit : Initial value : R/W : -- TDRE 0 -- -- RDRF 0 -- SARX0--2nd Slave Address Register SARX1--2nd Slave Address Register Bit : 7 SVAX6 Initial value : R/W : 0 R/W 6 SVAX5 0 R/W 5 SVAX4 0 R/W 4 SVAX3 0 R/W 2nd slave address H'FF7E H'FF86 3 SVAX2 0 R/W 2 SVAX1 0 R/W 1 SVAX0 0 R/W 0 FSX 1 R/W IIC0 IIC1 (These functions are not available in the H8S/2695.) Format select X 1287 ICMR0--I 2C Bus Mode Register ICMR1--I 2C Bus Mode Register Bit : 7 MLS Initial value : R/W : 0 R/W 6 WAIT 0 R/W 5 CKS2 0 R/W 4 CKS1 0 R/W 3 CKS0 0 R/W H'FF7F H'FF87 2 BC2 0 R/W 1 BC1 0 R/W 0 BC0 0 R/W IIC0 IIC1 (These functions are not available in the H8S/2695.) Bit counter Bit 2 BC2 0 Bit 1 BC1 0 1 1 0 1 Transmit clock select SCRX Bit 5 Bit 5, 6 IICX 0 CKS2 0 CKS1 0 1 1 0 1 1 0 0 1 1 0 1 CKS0 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 o/28 o/40 o/48 o/64 o/80 o/100 o/112 o/128 o/56 o/80 o/96 o/128 o/160 o/200 o/224 o/256 o= 5 MHz o= 8 MHz 179kHz 286 kHz 125kHz 200 kHz 104kHz 78.1kHz 62.5kHz 50.0kHz 44.6kHz 39.1kHz 89.3kHz 62.5kHz 52.1kHz 39.1kHz 31.3kHz 25.0kHz 22.3kHz 19.5kHz 167 kHz 125 kHz 100 kHz 80.0 kHz 71.4 kHz 62.5 kHz 143 kHz 100 kHz 83.3 kHz 62.5 kHz 50.0 kHz 40.0 kHz 35.7 kHz 31.3 kHz o= 10 MHz o= 16 MHz o= 20 MHz o= 25 MHz o= 28 MHz 357 kHz 571 kHz* 714 kHz* 893 kHz* 1000 kHz* 250 kHz 400 kHz 500 kHz* 625 kHz* 700 kHz* 208 kHz 333 kHz 417 kHz* 521 kHz* 583 kHz* 438 kHz* 156 kHz 250 kHz 313 kHz 391 kHz 350 kHz 125 kHz 200 kHz 250 kHz 313 kHz 100 kHz 89.3 kHz 78.1 kHz 179 kHz 125 kHz 104 kHz 78.1 kHz 62.5 kHz 50.0 kHz 44.6 kHz 39.1 kHz 160 kHz 143 kHz 125 kHz 286 kHz 200 kHz 167 kHz 125 kHz 100 kHz 80.0 kHz 71.4 kHz 62.5 kHz 200 kHz 179 kHz 156 kHz 357 kHz 250 kHz 208 kHz 156 kHz 125 kHz 100 kHz 89.3 kHz 78.1 kHz 250 kHz 223 kHz 195 kHz 446 kHz* 313 kHz 260 kHz 195 kHz 156 kHz 125 kHz 112 kHz 97.7 kHz 280 kHz 250 kHz 219 kHz 500 kHz* 350 kHz 292 kHz 219 kHz 175 kHz 140 kHz 125 kHz 109 kHz Bit 4 Bit 3 Clock Transfer rate Bit 0 BC0 0 1 0 1 0 1 0 1 Bit/frame Clock synchronous PC bus format serial format 8 9 1 2 2 3 3 4 4 5 5 6 6 7 7 8 Note: * These rates are outside the ranges stipulated in the I2C bus interface specifications (normal mode: max. 100 kHz, high-speed mode: max. 400 kHz). Wait insert bit 0 1 Send data followed by acknowledge bit. Insert wait between data and acknowledge bit. MSB-first/LSB-first select 0 1 MSB first LSB first 1288 SAR0--Slave Address Register SAR1--Slave Address Register Bit : 7 SVA6 Initial value : R/W : 0 R/W 6 SVA5 0 R/W 5 SVA4 0 R/W 4 SVA3 0 R/W Slave address Format select DDCSWR bit 6 SW 0 SAR bit 0 FS 0 SARX bit 0 FSX 0 1 H'FF7F H'FF87 3 SVA2 0 R/W 2 SVA1 0 R/W 1 SVA0 0 R/W 0 FS 0 R/W IIC0 IIC1 (These functions are not available in the H8S/2695.) Operating mode I2C bus format * SAR and SARX slave addresses recognized (initial value) I2C bus format * SAR slave address recognized * SARX slave address ignored I2C bus format * SAR slave address ignored * SARX slave address recognized Synchronous serial format * SAR and SARX slave addresses ignored * Must not be set. 1 0 1 1 -- -- ADDRAH--A/D Data Register AH ADDRAL--A/D Data Register AL ADDRBH--A/D Data Register BH ADDRBL--A/D Data Register BL ADDRCH--A/D Data Register CH ADDRCL--A/D Data Register CL ADDRDH--A/D Data Register DH ADDRDL--A/D Data Register DL Bit : 15 0 R 14 0 R 13 0 R 12 0 R 11 0 R 10 0 R 9 0 R 8 0 R H'FF90 H'FF91 H'FF92 H'FF93 H'FF94 H'FF95 H'FF96 H'FF97 7 0 R 6 0 R 5 0 R 4 -- 0 R 3 -- 0 R 2 -- 0 R 1 -- 0 R A/D A/D A/D A/D A/D A/D A/D A/D 0 -- 0 R AD9 AD8 AD7 AD6 AD5 AD4 AD3 AD2 AD1 AD0 -- Initial value : R/W : 1289 ADCSR--A/D Control/Status Register Bit : 7 ADF Initial value : R/W : 0 R/(W)* 6 ADIE 0 R/W 5 ADST 0 R/W 4 SCAN 0 R/W H'FF98 3 CH3 0 R/W 2 CH2 0 R/W 1 CH1 0 R/W 0 CH0 0 R/W A/D Channel select 3 0 AN8 to AN11 set as group 0 analog input pins, and AN12 to AN15 as group 1 analog input pins. AN0 to AN3 set as group 0 analog input pins, and AN4 to AN7 set as group 1 analog input pins. 1 Scan mode 0 1 Single mode Scan mode A/D start 0 A/D conversion disabled. 1 (1) Single mode: A/D conversion starts. Automatically cleared to 0 on completion of conversion on specified channel. (2) Scan mode: A/D conversion starts. The selected channel continues to be sequentially converted until this bit is cleared to 0 by a software, reset, or standby mode is selected, or module stop mode is selected. A/D interrupt enable 0 1 A/D end flag 0 [Clearing conditions] (1) Writing 0 to the ADF flag after reading ADF=1. (2) When DTC is started by an ADI interrupt and ADDR is read. [Setting conditions] (1)Single mode: On completion of A/D conversion. (2)Scan mode: On completion of conversion of all specified channels. A/D conversion end interrupt (ADI) requests disabled. A/D conversion end interrupt (ADI) requests enabled. 1 Channel select 2 to 0 CH3 0 CH2 0 CH1 0 1 1 0 1 1 0 0 1 1 0 1 CH0 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 Single mode (SCAN= 0) AN0 AN1 AN2 AN3 AN4 AN5 AN6 AN7 AN8 AN9 AN10 AN11 AN12 AN13 AN14 AN15 Scan mode (SCAN= 1) AN0 AN0, AN1 AN0 to AN2 AN0 to AN3 AN4 AN4, AN5 AN4 to AN6 AN4 to AN7 AN8 AN8, AN9 AN8 to AN10 AN8 to AN11 AN12 AN12, AN13 AN12 to AN14 AN12 to AN15 Note: * Only 0 can be written to these bits (to clear these flags). 1290 ADCR--A/D Control Register Bit : 7 TRGS1 Initial value : R/W : 0 R/W 6 TRGS0 0 R/W 5 -- 1 -- 4 -- 1 -- Clock select 1, 0 H'FF99 3 CKS1 0 R/W 2 CKS0 0 R/W 1 -- 1 -- 0 -- 1 -- A/D CKS1 CKS0 Description 0 0 Conversion time= 530 states (Max.) Conversion time= 266 states (Max.) 1 Conversion time= 134 states (Max.) 1 0 1 Conversion time= 68 states (Max.) Time trigger select 1, 0 TRGS1 TRGS0 Description 0 0 Enables starting of A/D conversion by software. Enables starting of A/D conversion by TPU conversion start trigger. 1 Enables starting of A/D conversion by 8-bit timer conversion start trigger. 1 0 Enables starting of A/D conversion by external trigger pin (ADTRG). 1 1291 TCSR1--Timer Control/Status Register 1 (This function is not available in the H8S/2695.) Bit : 7 OVF Initial value : R/W : 0 R/(W)* 6 WT/IT 0 R/W 5 TME 0 R/W 4 PSS 0 R/W 3 RST/NMI 0 R/W 2 CKS2 0 R/W 1 H'FFA2 (W), H'FFA2 (R) 0 CKS0 0 R/W WDT1 CKS1 0 R/W Clock select 2 to 0 Overflow cycle* (when o= 25MHz) (when oSUB=32.768kHz) 0 0 0 0 o/2 20.4 s 1 o/64 652.8 s 1 0 o/128 1.3 ms 1 o/512 5.2 ms 1 0 0 o/2048 20.9 ms 1 o/8192 83.6 ms 1 0 o/32768 334.2 ms 1 o/131072 1.34 s 1 0 0 0 oSUB/2 15.6 ms 1 oSUB/4 31.3 ms 1 0 oSUB/8 62.5 ms 1 oSUB/16 125 ms 1 0 0 oSUB/32 250 ms 1 oSUB/64 500 ms 1 0 oSUB/128 1s 1 oSUB/256 2s Note: * The overflow cycle starts when TCNT starts counting from H'00 and ends when an overflow occurs. Reset or NMI 0 NMI interrupt request 1 Internal reset request Prescaler select 0 TCNT counts the divided clock output by the o-based prescaler (PSM). 1 TCNT counts the divided clock output by the oSUB-based prescaler Timer enable 0 1 Timer mode select 0 1 Interval timer mode: Interval timer interrupt (WOVI) request sent to CPU when overflow occurs at TCNT. Watchdog timer mode: Reset or NMI interrupt request sent to CPU when overflow occurs at TCNT. Initializes TCNT to H'00 and disables the counting operation. TCNT performs counting operation. PSS CSK2 CSK1 CSK0 Clock Overflow flag 0 [Clearing conditions] (1) When 0 is written to TME bit (2) When 0 is written to OVF bit after reading TCSR when OVF=1 [Setting condition] When TCNT overflows (H'FF H'00). When internal reset request generation is selected in watchdog timer mode, OVF is cleared automatically by the internal reset. 1 Notes: TCSR is write-protected by a password to prevent accidental overwriting. For details see section 15.2.5, Notes on Register Access. * Only 0 can be written to these bits (to clear these flags). 1292 FLMCR1--Flash Memory Control Register 1 Bit : 7 FWE Initial value : R/W : --* R 6 SWE1 0 R/W 5 ESU1 0 R/W 4 PSU1 0 R/W 3 EV1 0 R/W H'FFA8 2 PV1 0 R/W 1 E1 0 R/W 0 P1 0 R/W FLASH Program 1 0 1 Exits program mode. Enters program mode. [Setting condition] When FWE=1, SWE1=1, and PSU1=1. Erase 1 0 1 Exits erase mode. Enters erase mode. [Setting condition] When FWE=1, SWE1=1, and ESU1=1. Program verify 1 0 1 Exits program verify mode. Enters program verify mode. [Setting condition] When FWE=1 and SWE1=1. Erase verify 1 0 1 Exits erase verify mode. Enters erase verify mode. [Setting condition] When FWE=1 and SWE1=1 Program setup bit 1 0 1 Exits program setup. Program setup. [Setting condition] When FWE=1 and SWE1=1. Erase setup bit 1 0 1 Exits erase setup. Erase setup. [Setting condition] When FWE=1 and SWE1=1. Software write enable bit 1 0 1 Writing disabled. Writing enabled. [Setting condition] When FWE=1. Flash write enable bit 0 1 When LOW level signal input to FWE pin (hardware protect status). When HIGH level signal input to FWE pin. Note: * Determined by the state of the FWE pin. 1293 FLMCR2--Flash Memory Control Register 2 Bit : 7 FLER Initial value : R/W : 0 R 6 -- 0 -- 5 -- 0 -- 4 -- 0 -- H'FFA9 3 -- 0 -- 2 -- 0 -- 1 -- 0 -- FLASH 0 -- 0 -- Flash memory error 0 Flash memory operating normally. Flash memory protection against writing and erasing (error protection) is ignored. [Clearing condition] At a power-on reset and in hardware standby mode. Shows that an error has occurred when writing to or erasing flash memory. Flash memory protection against writing and erasing (error protection) is enabled. [Setting condition] See section 22.8.3, Error Protection. 1 EBR1--Erase Block Register 1 Bit : 7 EB7 Initial value : R/W : 0 R/W 6 EB6 0 R/W 5 EB5 0 R/W 4 EB4 0 R/W H'FFAA 3 EB3 0 R/W 2 EB2 0 R/W 1 EB1 0 R/W FLASH 0 EB0 0 R/W EBR2--Erase Block Register 2 Bit : 7 -- Initial value : R/W : 0 R/W 6 -- 0 R/W 5 -- 0 R/W 4 -- 0 R/W H'FFAB 3 EB11 0 R/W 2 EB10 0 R/W 1 EB9 0 R/W FLASH 0 EB8 0 R/W 1294 FLPWCR--Flash Memory Power Control Register Bit : 7 PDWND Initial value : R/W : 0 R/W 6 -- 0 R 5 -- 0 R 4 -- 0 R H'FFAC 3 -- 0 R 2 -- 0 R 1 -- 0 R FLASH 0 -- 0 R Power-down disable 0 1 Transition to flash memory power-down mode enabled Transition to flash memory power-down mode disabled PORT1--Port 1 Register Bit : 7 P17 Initial value : R/W : --* R 6 P16 --* R 5 P15 --* R 4 P14 --* R H'FFB0 3 P13 --* R 2 P12 --* R 1 P11 --* R 0 P10 --* R Port Note: * Determined by status of pins P17 to P10. PORT3--Port 3 Register Bit : 7 P37 Initial value : R/W : --* R 6 P36 --* R 5 P35 --* R 4 P34 --* R H'FFB2 3 P33 --* R 2 P32 --* R 1 P31 --* R 0 P30 --* R Port Note: * Determined by status of pins P37 to P30. 1295 PORT4--Port 4 Register Bit : 7 P47 Initial value : R/W : --* R 6 P46 --* R 5 P45 --* R 4 P44 --* R H'FFB3 3 P43 --* R 2 P42 --* R 1 P41 --* R 0 P40 --* R Port Note: * Determined by status of pins P47 to P40. PORT7--Port 7 Register Bit : 7 P77 Initial value : R/W : --* R 6 P76 --* R 5 P75 --* R 4 P74 --* R H'FFB6 3 P73 --* R 2 P72 --* R 1 P71 --* R 0 P70 --* R Port Note: * Determined by status of pins P77 to P70. PORT9--Port 9 Register Bit : 7 P97 Initial value : R/W : --* R 6 P96 --* R 5 P95 --* R 4 P94 --* R H'FFB8 3 P93 --* R 2 P92 --* R 1 P91 --* R 0 P90 --* R Port Note: * Determined by status of pins P97 to P90. 1296 PORTA--Port A Register Bit : 7 -- R/W : -- 6 -- -- 5 -- -- 4 -- -- H'FFB9 3 PA3 --* R 2 PA2 --* R 1 PA1 --* R 0 PA0 --* R Port Initial value : Undefined Undefined Undefined Undefined Note: * Determined by status of pins PA3 to PA0. PORTB--Port B Register Bit : 7 PB7 Initial value : R/W : --* R 6 PB6 --* R 5 PB5 --* R 4 PB4 --* R H'FFBA 3 PB3 --* R 2 PB2 --* R 1 PB1 --* R 0 PB0 --* R Port Note: * Determined by status of pins PB7 to PB0. PORTC--Port C Register Bit : 7 PC7 Initial value : R/W : --* R 6 PC6 --* R 5 PC5 --* R 4 PC4 --* R H'FFBB 3 PC3 --* R 2 PC2 --* R 1 PC1 --* R 0 PC0 --* R Port Note: * Determined by status of pins PC7 to PC0. PORTD--Port D Register Bit : 7 PD7 Initial value : R/W : --* R 6 PD6 --* R 5 PD5 --* R 4 PD4 --* R H'FFBC 3 PD3 --* R 2 PD2 --* R 1 PD1 --* R 0 PD0 --* R Port Note: * Determined by status of pins PD7 to PD0. 1297 PORTE--Port E Register Bit : 7 PE7 Initial value : R/W : --* R 6 PE6 --* R 5 PE5 --* R 4 PE4 --* R H'FFBD 3 PE3 --* R 2 PE2 --* R 1 PE1 --* R 0 PE0 --* R Port Note: * Determined by status of pins PE7 to PE0. PORTF--Port F Register Bit : 7 PF7 Initial value : R/W : --* R 6 PF6 --* R 5 PF5 --* R 4 PF4 --* R H'FFBE 3 PF3 --* R 2 PF2 --* R 1 PF1 --* R 0 PF0 --* R Port Note: * Determined by status of pins PF7 to PF0. PORTG--Port G Register Bit : 7 -- R/W : -- 6 -- -- 5 -- -- 4 PG4 --* R H'FFBF 3 PG3 --* R 2 PG2 --* R 1 PG1 --* R 0 PG0 --* R Port Initial value : Undefined Undefined Undefined Note: * Determined by status of pins PG4 to PG0. 1298 Appendix C I/O Port Block Diagrams C.1 to C.12 are I/O port block diagrams for the H8S/2633, H8S/2632, H8S/2631, H8S/2633F, and H8S/2633R. C.13 to C.24 are I/O port block diagrams for the H8S/2695. C.1 Port 1 Block Diagram Reset Internal data bus R Q D P1nDDR C WDDR1 Reset R Q D P1nDR C Internal address bus System controller Address output enable PPG module Pulse output enable Pulse output DMA controller DMA transfer acknowledge enable DMA transfer acknowledge TPU module Output compare output/ PWM output enable Output compare output/ PWM output RDR1 Input capture input P1n * WDR1 Internal address bus RPOR1 Legend WDDR1 : Write to P1DDR WDR1 : Write to P1DR RDR1 : Read P1DR RPOR1 : Read port 1 n= 0 or 1 Note: * Priority order: Address output > Output compare output/PWM output > DMA transfer acknowledge output > pulse output > DR output Figure C-1 (a) Port 1 Block Diagram (Pins P10 and P11) 1299 Reset Internal address bus System controller Address output enable PPG module Pulse output enable Pulse output TPU module Output compare output/ PWM output enable Output compare output/ PWM output RDR1 Input capture input External clock input Legend WDDR1: WDR1: RDR1: RPOR1: n = 2 or 3 R Q D P1nDDR C WDDR1 Reset R Q D P1nDR C * WDR1 P1n Internal address bus RPOR1 Write to P1DDR Write to P1DR Read P1DR Read port 1 Note: * Priority order: address output > output compare output/PWM output > pulse output > DR output Figure C-1 (b) Port 1 Block Diagram (Pins P12 and P13) 1300 Internal data bus Reset R Q D P14DDR C WDDR1 Reset R Q D P14DR C WDR1 P14 * RDR1 RPOR1 Internal data bus PPG module Pulse output enable Pulse output TPU module Output compare output/ PWM output enable Output compare output/ PWM output Input capture input Interrupt controller IRQ0 interrupt input Legend WDDR1: WDR1: RDR1: RPOR1: Write to P1DDR Write to P1DR Read P1DR Read port 1 Note: * Priority order: output compare output/PWM output > pulse output > DR output Figure C-1 (c) Port 1 Block Diagram (Pin P14) 1301 Reset R Q D P15DDR C WDDR1 Reset R Q D P15DR C WDR1 PPG module Pulse output enable Pulse output TPU module Output compare output/ PWM output enable Output compare output/ PWM output RDR1 P15 * RPOR1 Internal data bus Input capture input External clock input Legend WDDR1: WDR1: RDR1: RPOR1: Write to P1DDR Write to P1DR Read P1DR Read port 1 Note: * Priority order: output compare output/PWM output > pulse output > DR output Figure C-1 (d) Port 1 Block Diagram (Pin P15) 1302 Reset R Q D P16DDR C WDDR1 Reset R Q D P16DR C * WDR1 P16 Internal data bus PWM module PWM2 output enable PWM2 output PPG module Pulse output enable Pulse output TPU module Output compare output/ PWM output enable Output compare output/ PWM output Input capture input Input controller IRQ1 interrupt input RDR1 RPOR1 Legend WDDR1 WDR1 RDR1 RPOR1 : Write to P1DDR : Write to P1DR : Read P1DR : Read port 1 Note: * Priority order: output compare output/PWM output > PWM2 output > pulse output > DR output Figure C-1 (e) Port 1 Block Diagram (Pin P16) 1303 Reset R Q D P17DDR C WDDR1 Reset R Q D P17DR C * WDR1 P17 Internal data bus PWM module PWM3 output enable PWM3 output PPG module Pulse output enable Pulse output TPU module Output compare output/ PWM output enable Output compare output/ PWM output Input capture input External clock input RDR1 RPOR1 Legend WDDR1 WDR1 RDR1 RPOR1 : Write to P1DDR : Write to P1DR : Read P1DR : Read port 1 Note: * Priority order: output compare output/PWM output > PWM3 output > pulse output > DR output Figure C-1 (f) Port 1 Block Diagram (Pin P17) 1304 C.2 Port 3 Block Diagram Reset R Q D P30DDR C WDDR3 *1 REset R Q D P30DR C WDR3 *2 Reset R Q D P30ODR C WODR3 RODR3 SCI module Serial transmit enable Serial transmit data P30 Internal data bus TxD0/IrTxD RDR3 RPOR3 Legend WDDR3 WDR3 WODR3 RDR3 RPOR3 RODR3 : Write to P3DDR : Write to P3DR : Write to P3ODR : Read P3DR : Read port 3 : Read P3ODR Notes: *1 Output enable signal *2 Open drain control signal Figure C-2 (a) Port 3 Block Diagram (Pin P30) 1305 Reset R Q D P31DDR C *1 WDDR3 Internal data bus SCI module RDR3 Serial receive data enable Serial receive data RxD0/IrRxD Reset P31 R Q D P31DR C *2 WDR3 Reset R Q D P31ODR C WODR3 RODR3 RPOR3 Legend WDDR3 WDR3 WODR3 RDR3 RPOR3 RODR3 : Write to P3DDR : Write to P3DR : Write to P3ODR : Read P3DR : Read port 3 : Read P3ODR Notes: *1 Output enable signal *2 Open drain control signal Figure C-2 (b) Port 3 Block Diagram (Pin P31) 1306 Reset Internal data bus IIC1 module SDA1 output IIC1 output enable SDA1 input R Q D P32DDR C WDDR3 *2 Reset R Q D P32DR C WDR3 *3 Reset R Q D P32ODR C WODR3 RODR3 P32 *1 SCI module Serial clock output enable Serial clock output Serial clock input enable RDR3 RPOR3 Serial clock input Interrupt controller IRQ4 interrupt input Legend WDDR3 WDR3 WODR3 RDR3 RPOR3 RODR3 : Write to P3DDR : Write to P3DR : Write to P3ODR : Read P3DR : Read port 3 : Read P3ODR Notes: *1 Priority order: IIC output > Serial clock output > DR output *2 Output enable signal *3 Open drain control signal Figure C-2 (c) Port 3 Block Diagram (Pin P32) 1307 Reset R Q D P33DDR C WDDR3 *1 Reset R Q D P33DR C WDR3 *2 Reset R Q D P33ODR C WODR3 RODR3 SCI module Serial transmit enable Serial transmit data TxD1 P33 RDR3 RPOR3 IIC1 module SCL1 output IIC1 output enable SCL1 input Legend WDDR3 WDR3 WODR3 RDR3 RPOR3 RODR3 : Write to P3DDR : Write to P3DR : Write to P3ODR : Read P3DR : Read port 3 : Read P3ODR Notes: *1 Output enable signal *2 Open drain control signal Figure C-2 (d) Port 3 Block Diagram (Pin P33) 1308 Internal data bus Reset R Q D P34DDR C *1 *3 P34 WDDR3 Internal data bus SCI module RDR3 Serial receive data enable Serial receive data RxD1 Reset R Q D P34DR C WDR3 Reset R Q D P34ODR C WODR3 RODR3 *2 RPOR3 IIC0 module SDA0 output IIC0 output enable SDA0 Input Legend WDDR3 WDR3 WODR3 RDR3 RPOR3 RODR3 : Write to P3DDR : Write to P3DR : Write to P3ODR : Read P3DR : Read port 3 : Read P3ODR Notes: *1 Output enable signal *2 Open drain control signal *3 Priority order: IIC output > DR output Figure C-2 (e) Port 3 Block Diagram (Pin P34) 1309 Reset R Q D P35DDR C WDDR3 *2 Internal data bus SCI module Serial clock output enable Serial clock output Serial clock input enable Serial clock input Reset R Q D P35DR C WDR3 P35 *1 *3 Reset R Q D P35ODR C WODR3 RODR3 RDR3 RPOR3 IIC0 module SCL0 output IIC0 output enable SCL0 input Interrupt controller IRQ5 interrupt input Legend WDDR3 WDR3 WODR3 RDR3 RPOR3 RODR3 : Write to P3DDR : Write to P3DR : Write to P3ODR : Read P3DR : Read port 3 : Read P3ODR Notes: *1 Priority order: IIC output > Serial clock output > DR output *2 Output enable signal *3 Open drain control signal Figure C-2 (f) Port 3 Block Diagram (Pin P35) 1310 Reset R Q D P36DDR C *1 WDDR3 Internal data bus SCI module RDR3 Serial receive data enable Serial receive data RxD4 Reset P36 R Q D P36DR C *2 WDR3 Reset R Q D P36ODR C WODR3 RODR3 RPOR3 Legend WDDR3 WDR3 WODR3 RDR3 RPOR3 RODR3 : Write to P3DDR : Write to P3DR : Write to P3ODR : Read P3DR : Read port 3 : Read P3ODR Notes: *1 Output enable signal *2 Open drain control signal Figure C-2 (g) Port 3 Block Diagram (Pin P36) 1311 Reset R Q D P37DDR C WDDR3 *1 Internal data bus SCI module Serial transmit enable Serial transmit data RDR3 TxD4 Reset R Q D P37DR C WDR3 *2 Reset R Q D P37ODR C WODR3 RODR3 P37 RPOR3 Legend WDDR3 WDR3 WODR3 RDR3 RPOR3 RODR3 : Write to P3DDR : Write to P3DR : Write to P3ODR : Read P3DR : Read port 3 : Read P3ODR Notes: *1 Output enable signal *2 Open drain control signal Figure C-2 (h) Port 3 Block Diagram (Pin P37) 1312 C.3 Port 4 Block Diagram Internal data bus A/D converter module Analog input RPOR4 P4n Legend RPOR4 : Read port 4 n= 0 to 5 Figure C-3 (a) Port 4 Block Diagram (Pins P40 to P45) RPOR4 P4n Internal data bus A/D converter module Analog input D/A converter module Output enable Analog output Legend RPOR4 : Read port 4 n= 6 or 7 Figure C-3 (b) Port 4 Block Diagram (Pins P46 and P47) 1313 C.4 Port 7 Block Diagram Reset R Q D P7nDDR C WDDR7 Mode 7 P7n Modes 4 to 6 Reset R Q D P7nDR C WDR7 Internal data bus Bus controller Chip select RDR7 RPOR7 DMA controller DMA request input 8-bit timer Legend WDDR7 : Write to P7DDR WDR7 : Write to P7DR RDR7 : Read P7DR RPOR7 : Read port 7 n= 0 or 1 Reset/Count input Figure C-4 (a) Port 7 Block Diagram (Pins P70 and P71) 1314 Reset R Q D P72DDR C WDDR7 Mode 7 * Reset R Q D P72DR C WDR7 P72 Modes 4 to 6 Internal data bus Bus controller Chip select DMA controller DMA transfer end enable DMA transferred RDR7 8-bit timer Timer output TMO0 Timer output enable RPOR7 IIC module Formatress clock input Legend WDDR7 WDR7 RDR7 RPOR7 : Write to P7DDR : Write to P7DR : Read P7DR : Read port 7 Note: * Priority order: (Mode 7) DMA transfer end output > 8-bit timer output > DR output (Modes 4/5/6) Chip select output > DMA transfer end output > 8-bit timer output > DR output Figure C-4 (b) Port 7 Block Diagram (Pin P72) 1315 Reset R Q D P73DDR C WDDR7 Mode 7 * Reset R Q D P73DR C WDR7 P73 Modes 4 to 6 Internal data bus Bus controller Chip select DMA controller DMA transfer end enable DMA transfer end RDR7 RPOR7 8-bit timer Timer output TMO1 Timer output enable Legend WDDR7 WDR7 RDR7 RPOR7 : Write to P7DDR : Write to P7DR : Read P7DR : Read port 7 Note: * Priority order: (Mode 7) DMA transfer end output > 8-bit timer output > DR output (Modes 4/5/6) Chip select output > DMA transfer end output > 8-bit timer output > DR output Figure C-4 (c) Port 7 Block Diagram (Pin P73) 1316 Reset R Q D P74DDR C WDDR7 Reset P74 R Q D P74DR C WDR7 Internal data bus 8-bit timer 8-bit timer output enable 8-bit timer output RDR7 RPOR7 System controller Manual reset input enable Manual reset input Legend WDDR7 WDR7 RDR7 RPOR7 : Write to P7DDR : Write to P7DR : Read P7DR : Read port 7 Figure C-4 (d) Port 7 Block Diagram (Pin P74) 1317 Reset R Q D P75DDR C WDDR7 Reset R Q D P75DR C WDR7 P75 * Internal data bus 8-bit timer Timer output enable Timer output SCI module Serial clock output enable Serial clock RDR7 Serial clock input enable RPOR7 Serial clock input Legend WDDR7 WDR7 RDR7 RPOR7 : Write to P7DDR : Write to P7DR : Read P7DR : Read port 7 Note: *Priority order: Serial clock output > 8-bit timer output > DR output Figure C-4 (e) Port 7 Block Diagram (Pin P75) 1318 Reset R Q D P76DDR C WDDR7 Reset P76 R Q D P76DR C WDR7 Internal data bus SCI module Serial receive data enable Serial receive data RxD3 RDR7 RPOR7 Legend WDDR7 WDR7 RDR7 RPOR7 : Write to P7DDR : Write to P7DR : Read P7DR : Read port 7 Figure C-4 (f) Port 7 Block Diagram (Pin P76) 1319 Reset R Q D P77DDR C WDDR7 Reset R Q D P77DR C WDR7 P77 Internal data bus SCI module Serial transmit enable data Serial transmit data TxD3 RDR7 RPOR7 Legend WDDR7 WDR7 RDR7 RPOR7 : Write to P7DDR : Write to P7DR : Read P7DR : Read port 7 Figure C-4 (g) Port 7 Block Diagram (Pin P77) 1320 C.5 Port 9 Block Diagram RPOR9 P9n Internal data bus A/D converter module Analog input Legend RPOR9 : Read port 9 n= 0 to 5 Figure C-5 (a) Port 9 Block Diagram (Pins P90 to P95) RPOR9 P9n Internal data bus A/D converter module Analog input D/A converter module Output enable Analog output Legend RPOR9 : Read port 9 n= 6 or 7 Figure C-5 (b) Port 9 Block Diagram (Pins P96 and P97) 1321 C.6 Port A Block Diagram Reset R Q D PA0PCR C WPCRA RPCRA Reset R Q D PA0DDR C WDDRA *1 Reset R Q D PA0DR C WDRA Reset R Q D PA0ODR C WODRA RODRA PA0 Modes 4 to 6 Address enable *2 RDRA RPORA Legend Notes: *1 Output enable signal *2 Open drain control signal WDDRA : Write to PADDR WDRA : Write to PADR WODRA : Write to PAODR WPCRA : Write to PAPCR RDRA : Read PADR RPORA : Read port A RODRA : Read PAODR RPCRA : Read PAPCR Figure C-6 (a) Port A Block Diagram (Pin PA0) 1322 Internal address bus Internal data bus Reset R Q D PA1PCR C WPCRA RPCRA Smart card mode signal TxD output TxD output enable Reset R Q D PA1DDR C WDDRA *1 Reset R Q D PA1DR C WDRA Reset R Q D PA1ODR C WODRA RODRA PA1 Modes 4 to 6 Address enable *2 RDRA RPORA Legend WDDRA : Write to PADDR WDRA : Write to PADR WODRA : Write to PAODR WPCRA : Write to PAPCR RDRA : Read PADR RPORA : Read port A RODRA : Read PAODR RPCRA : Read PAPCR Notes: *1 Output enable signal *2 Open drain control signal Figure C-6 (b) Port A Block Diagram (Pin PA1) 1323 Internal address bus Internal data bus Reset R Q D PA2PCR C Internal address bus WPCRA RPCRA Internal data bus RxD input enable Reset R Q D PA2DDR C WDDRA *1 Reset R Q D PA2DR C WDRA Reset R Q D PA2ODR C WODRA RODRA PA2 Modes 4 to 6 Address enable *2 RDRA RxD input RPORA Legend WDDRA : Write to PADDR WDRA : Write to PADR WODRA : Write to PAODR WPCRA : Write to PAPCR RDRA : Read PADR RPORA : Read port A RODRA : Read PAODR RPCRA : Read PAPCR Notes: *1 Output enable signal *2 Open drain control signal Figure C-6 (c) Port A Block Diagram (Pin PA2) 1324 Reset R Q D PA3PCR C WPCRA RPCRA SCK input enable SCK output SCK output enable Reset R Q D PA3DDR C WDDRA Reset R Q D PA3DR C WDRA Reset R Q D PA3ODR C WODRA RODRA *1 PA3 Modes 4 to 6 Address enable *2 RDRA SCK input RPORA Legend Notes: *1 Output enable signal *2 Open drain control signal WDDRA : Write to PADDR WDRA : Write to PADR WODRA : Write to PAODR WPCRA : Write to PAPCR RDRA : Read PADR RPORA : Read port A RODRA : Read PAODR RPCRA : Read PAPCR Figure C-6 (d) Port A Block Diagram (Pin PA3) 1325 Internal address bus Internal data bus C.7 Port B Block Diagram Reset R Q D PBnPCR C WPCRB RPCRB (Output compare) TPU output TPU output enable Reset R Q D PBnDDR C WDDRB *1 Reset R Q D PBnDR C WDRB Reset R Q D PBnODR C WODRB RODRB PBn Modes 4 to 6 Address enable *2 RDRB TPU input (Input capture) RPORB Legend Notes: *1 Output enable signal *2 Open drain control signal WDDRB : Write to PBDDR WDRB : Write to PBDR WODRB : Write to PBODR WPCRB : Write to PBPCR RDRB : Read PBDR RPORB : Read port B RODRB : Read PBODR RPCRB : Read PBPCR n= 0 to 7 Figure C-7 Port B Block Diagram (Pins PB0 to PB7) 1326 Internal address bus Internal data bus C.8 Port C Block Diagram Reset R Q D PCnPCR C WPCRC RPCRC Reset R Q D PCnDDR C WDDRC *1 Reset R Q D PCnDR C WDRC *2 Reset R Q D PCnODR C WODRC RODRC PCn Modes 4/5 Mode 6 RDRC RPORC Legend Notes: *1 Output enable signal *2 Open drain control signal WDDRC : Write to PCDDR WDRC : Write to PCDR WODRC : Write to PCODR WPCRC : Write to PCPCR RDRC : Read PCDR RPORC : Read port C RODRC : Read PCODR RPCRC : Read PCPCR n= 0 to 5 Figure C-8 (a) Port C Block Diagram (Pins PC0 to PC5) 1327 Internal address bus Internal data bus Reset R Q D PCnPCR C WPCRC RPCRC PWM output PWM output enable Reset R Q D PCnDDR C WDDRC *1 Reset R Q D PCnDR C WDRC *2 Reset R Q D PCnODR C WODRC RODRC PCn Modes 4/5 Mode 6 RDRC RPORC Legend Notes: *1 Output enable signal *2 Open drain control signal WDDRC : Write to PCDDR WDRC : Write to PCDR WODRC : Write to PCODR WPCRC : Write to PCPCR RDRC : Read PCDR RPORC : Read port C RODRC : Read PCODR RPCRC : Read PCPCR n= 6 or 7 Figure C-8 (b) Port C Block Diagram (Pins PC6 and PC7) 1328 Internal address bus Internal data bus C.9 Port D Block Diagram Reset Internal upper data bus R Q D PDnPCR C WPCRD RPCRD Reset R Q D PDnDDR C WDDRD Reset R Q D PDnDR C WDRD External address write PDn Mode 7 Modes 4 to 6 External address upper write RDRD RPORD External address upper read Legend WDDRD : Write to PDDDR WDRD : Write to PDDR WPCRD : Write to PDPCR RDRD : Read PDDR RPORD : Read port D RPCRD : Read PDPCR n= 0 to 7 Figure C-9 Port D Block Diagram (Pins PD0 to PD7) 1329 C.10 Port E Block Diagram Reset Internal upper data bus R Q D PEnPCR C WPCRE RPCRE Reset R Q D PEnDDR C WDDRE Reset R Q D PEnDR C WDRE External address write PEn Mode 7 Modes 4 to 6 RDRE RPORE External addres lower read Legend WDDRE : Write to PEDDR WDRE : Write to PEDR WPCRE : Write to PEPCR RDRE : Read PEDR RPORE : Read port E RPCRE : Read PEPCR n= 0 to 7 Figure C-10 Port E Block Diagram (Pins PE0 to PE7) 1330 Internal lower data bus C.11 Port F Block Diagram R Q D PF0DDR C WDDRF Modes 4 to 6 Internal data bus Bus controller BRLE bit Bus request input IRQ interrupt input Reset Reset PF0 R Q D PF0DR C WDRF RDRF RPORF Legend WDDRF WDRF RDRF RPORF : Write to PFDDR : Write to PFDR : Read PFDR : Read port F Figure C-11 (a) Port F Block Diagram (Pin PF0) 1331 Reset R Q D PF1DDR C WDDRF Reset R Q D PF1DR C WDRF Modes 4 to 6 BUZZ output BUZZ output enable PF1 Internal data bus Bus controller BRLE output Bus request acknowledge output RDRF RPORF Legend WDDRF WDRF RDRF RPORF : Write to PFDDR : Write to PFDR : Read PFDR : Read port F Figure C-11 (b) Port F Block Diagram (Pin PF1) 1332 R Q D PF2DDR C WDDRF Reset Modes 4 to 6 Internal data bus Reset Bus controller Wait enable PF2 Modes 4 to 6 R Q D PF2DR C WDRF Modes 4 to 6 Bus request output enable Bus request output RDRF RPORF Wait input LCAS output enable LCASS bit LCAS output Legend WDDRF WDRF RDRF RPORF : Write to PFDDR : Write to PFDR : Read PFDR : Read port F Figure C-11 (c) Port F Block Diagram (Pin PF2) 1333 Reset R Q D PF3DDR C WDDRF Reset R Q D PF3DR C WDRF PF3 Modes 4 to 6 Internal data bus Bus controller LWR output RDRF RPORF ADTRG input IRQ interrupt input Legend WDDRF WDRF RDRF RPORF : Write to PFDDR : Write to PFDR : Read PFDR : Read port F Figure C-11 (d) Port F Block Diagram (Pin PF3) 1334 Reset R Q D PF4DDR C WDDRF Reset R Q D PF4DR C WDRF PF4 Modes 4 to 6 Internal data bus Bus controller HWR output RDRF RPORF Legend WDDRF WDRF RDRF RPORF : Write to PFDDR : Write to PFDR : Read PFDR : Read port F Figure C-11 (e) Port F Block Diagram (Pin PF4) 1335 Reset R Q D PF5DDR C WDDRF Reset R Q D PF5DR C WDRF PF5 Modes 4 to 6 Internal data bus Bus controller RD output RDRF RPORF Legend WDDRF WDRF RDRF RPORF : Write to PFDDR : Write to PFDR : Read PFDR : Read port F Figure C-11 (f) Port F Block Diagram (Pin PF5) 1336 Reset R Q D PF6DDR C WDDRF Reset R Q D PF6DR C WDRF LCAS output LCAS output enable LCASS Bus controller AS output RDRF PF6 Modes 4 to 6 RPORF Legend WDDRF WDRF RDRF RPORF : Write to PFDDR : Write to PFDR : Read PFDR : Read port F Figure C-11 (g) Port F Block Diagram (Pin PF6) Internal data bus 1337 Modes 4 to 6 Reset S* R Q D D PF7DDR C WDDRF Reset R Q D PF7DR C WDRF PF7 Internal data bus o RDRF RPORF Legend WDDRF WDRF RDRF RPORF Note: * Set priority : Write to PFDDR : Write to PFDR : Read PFDR : Read port F Figure C-11 (h) Port F Block Diagram (Pin PF7) 1338 C.12 Port G Block Diagram Reset R Q D PG0DDR C WDDRG Reset R Q D PG0DR C WDRG Modes 4 to 6 PG0 Internal data bus Bus controller CAS enable CAS output RDRG RPORG IRQ interrupt input Legend WDDRG : Write to PGDDR WDRG : Write to PGDR RDRG : Read PGDR RPORG : Read port G Figure C-12 (a) Port G Block Diagram (Pin PG0) 1339 Reset R Q D PG1DDR C WDDRG Reset R Q D PG1DR C WDRG OE output OE output enable Bus controller Chip select PG1 Modes 4 to 6 RDRG RPORG Legend WDDRG : Write to PGDDR WDRG : Write to PGDR RDRG : Read PGDR RPORG : Read port G Figure C-12 (b) Port G Block Diagram (Pin PG1) 1340 Internal data bus Reset R Q D PGnDDR C WDDRG Reset R Q D PGnDR C WDRG PGn Modes 4 to 6 Internal data bus Bus controller Chip select RDRG RPORG Legend WDDRG : Write to PGDDR WDRG : Write to PGDR RDRG : Read PGDR RPORG : Read port G n= 2 or 3 Figure C-12 (c) Port G Block Diagram (Pin PG2 and PG3) 1341 Modes 4/5 Modes 6/7 Reset WDDRG Reset R Q D PG4DR C WDRG PG4 Modes 4 to 6 Internal data bus Bus controller Chip select S R Q D PG4DDR C RDRG RPORG Legend WDDRG : Write to PGDDR WDRG : Write to PGDR RDRG : Read PGDR RPORG : Read port G Figure C-12 (d) Port G Block Diagram (Pin PG4) 1342 C.13 Port 1 Block Diagram Reset Internal data bus R Q D P1nDDR C WDDR1 Reset R Q D P1nDR C Internal address bus System controller*1 Address output enable TPU module Output compare output/ PWM output enable Output compare output/ PWM output RDR1 Input capture input P1n * WDR1 RPOR1 Legend WDDR1 : Write to P1DDR WDR1 : Write to P1DR RDR1 : Read P1DR RPOR1 : Read port 1 n = 0 or 1 Note: * Priority order: Address output*1 > Output compare output/PWM output > DR output *1 Always disabled in mode 7. Figure C-13 (a) Port 1 Block Diagram (Pins P10 and P11) 1343 Reset Internal address bus System controller*1 Address output enable TPU module Output compare output/ PWM output enable Output compare output/ PWM output Input capture input External clock input WDDR1 Reset P1n * R Q D P1nDR C WDR1 Internal address bus RDR1 RPOR1 Legend WDDR1 WDR1 RDR1 RPOR1 n = 2 or 3 : Write to P1DDR : Write to P1DR : Read P1DR : Read port 1 Note: * Priority order: address output*1 > output compare output/PWM output > DR output *1 Always disabled in mode 7. Figure C-13 (b) Port 1 Block Diagram (Pins P12 and P13) 1344 Internal data bus R Q D P1nDDR C Reset WDDR1 Reset P14 * R Q D P14DR C WDR1 RDR1 RPOR1 Internal data bus TPU module Output compare output/ PWM output enable Output compare output/ PWM output Input capture input Interrupt controller IRQ0 interrupt input R Q D P14DDR C Legend WDDR1 WDR1 RDR1 RPOR1 : Write to P1DDR : Write to P1DR : Read P1DR : Read port 1 Note: * Priority order: output compare output/PWM output > DR output Figure C-13 (c) Port 1 Block Diagram (Pin P14) 1345 Reset WDDR1 Reset P15 * R Q D P15DR C WDR1 RDR1 RPOR1 Internal data bus TPU module Output compare output/ PWM output enable Output compare output/ PWM output Input capture input External clock input R Q D P15DDR C Legend WDDR1 WDR1 RDR1 RPOR1 : Write to P1DDR : Write to P1DR : Read P1DR : Read port 1 Note: * Priority order: output compare output/PWM output > DR output Figure C-13 (d) Port 1 Block Diagram (Pin P15) 1346 Reset Internal data bus TPU module Output compare output/ PWM output enable Output compare output/ PWM output Input capture input Interrupt controller IRQ1 interrupt input R Q D P16DDR C WDDR1 Reset R Q D P16DR C * WDR1 P16 RDR1 RPOR1 Legend WDDR1 : Write to P1DDR WDR1 : Write to P1DR RDR1 : Read P1DR RPOR1 : Read port 1 Note: * Priority order: output compare output/PWM output > DR output Figure C-13 (e) Port 1 Block Diagram (Pin P16) 1347 Reset R Q D P17DDR C WDDR1 Reset R Q D P17DR C * WDR1 P17 RDR1 RPOR1 Internal data bus TPU module Output compare output/ PWM output enable Output compare output/ PWM output Input capture input External clock input Legend WDDR1 : Write to P1DDR WDR1 : Write to P1DR RDR1 : Read P1DR RPOR1 : Read port 1 Note: * Priority order: output compare output/PWM output > DR output Figure C-13 (f) Port 1 Block Diagram (Pin P17) 1348 C.14 Port 3 Block Diagram Reset Internal data bus SCI module Serial transmit enable Serial transmit data R Q D P30DDR C *1 WDDR3 Reset R Q D P30DR C WDR3 *2 Reset R Q D P30ODR C WODR3 RODR3 P30 TxD0/IrTxD RDR3 RPOR3 Legend WDDR3 WDR3 WODR3 RDR3 RPOR3 RODR3 : Write to P3DDR : Write to P3DR : Write to P3ODR : Read P3DR : Read port 3 : Read P3ODR Notes: *1 Output enable signal *2 Open drain control signal Figure C-14 (a) Port 3 Block Diagram (Pin P30) 1349 Reset R Q D P31DDR C *1 WDDR3 Reset P31 R Q D P31DR C *2 WDR3 Reset R Q D P31ODR C WODR3 RODR3 Internal data bus SCI module Serial receive data enable Serial receive data RxD0/IrRxD RDR3 RPOR3 Legend WDDR3 WDR3 WODR3 RDR3 RPOR3 RODR3 : Write to P3DDR : Write to P3DR : Write to P3ODR : Read P3DR : Read port 3 : Read P3ODR Notes: *1 Output enable signal *2 Open drain control signal Figure C-14 (b) Port 3 Block Diagram (Pin P31) 1350 Reset R Q D P32DDR C WDDR3 *2 Reset R Q D P32DR C WDR3 *3 Reset R Q D P32ODR C WODR3 RODR3 SCI module Serial clock output enable Serial clock output Serial clock input enable P32 *1 RDR3 RPOR3 Internal data bus Serial clock input Interrupt controller IRQ4 interrupt input Legend WDDR3 WDR3 WODR3 RDR3 RPOR3 RODR3 : Write to P3DDR : Write to P3DR : Write to P3ODR : Read P3DR : Read port 3 : Read P3ODR Notes: *1 Priority order: Serial clock output > DR output *2 Output enable signal *3 Open drain control signal Figure C-14 (c) Port 3 Block Diagram (Pin P32) 1351 Reset Internal data bus SCI module Serial transmit enable Serial transmit data TxD1 R Q D P33DDR C WDDR3 *1 Reset R Q D P33DR C WDR3 *2 Reset R Q D P33ODR C WODR3 RODR3 P33 RDR3 RPOR3 Legend WDDR3 WDR3 WODR3 RDR3 RPOR3 RODR3 : Write to P3DDR : Write to P3DR : Write to P3ODR : Read P3DR : Read port 3 : Read P3ODR Notes: *1 Output enable signal *2 Open drain control signal Figure C-14 (d) Port 3 Block Diagram (Pin P33) 1352 Reset R Q D P34DDR C *1 WDDR3 Reset P34 R Q D P34DR C *2 WDR3 Reset R Q D P34ODR C WODR3 RODR3 Internal data bus SCI module Serial receive data enable Serial receive data RxD1 RDR3 RPOR3 Legend WDDR3 WDR3 WODR3 RDR3 RPOR3 RODR3 : Write to P3DDR : Write to P3DR : Write to P3ODR : Read P3DR : Read port 3 : Read P3ODR Notes: *1 Output enable signal *2 Open drain control signal Figure C-14 (e) Port 3 Block Diagram (Pin P34) 1353 Reset WDDR3 *2 Reset *1 P35 R Q D P35DR C WDR3 *3 Reset R Q D P35ODR C WODR3 RODR3 SCI module Serial clock 1 output enable Serial clock 4 output enable Serial clock 1 output Serial clock 4 output RDR3 RPOR3 Internal data bus Serial clock 1 input Serial clock 4 input R Q D P35DDR C Interrupt controller IRQ5 interrupt input Legend WDDR3 WDR3 WODR3 RDR3 RPOR3 RODR3 : Write to P3DDR : Write to P3DR : Write to P3ODR : Read P3DR : Read port 3 : Read P3ODR Notes: *1 Priority order: Serial clock 4 output > DR output *2 Output enable signal *3 Open drain control signal Figure C-14 (f) Port 3 Block Diagram (Pin P35) 1354 Reset Internal data bus SCI module RDR3 Serial receive data enable Serial receive data RxD4 R Q D P36DDR C *1 WDDR3 Reset P36 R Q D P36DR C *2 WDR3 Reset R Q D P36ODR C WODR3 RODR3 RPOR3 Legend WDDR3 WDR3 WODR3 RDR3 RPOR3 RODR3 : Write to P3DDR : Write to P3DR : Write to P3ODR : Read P3DR : Read port 3 : Read P3ODR Notes: *1 Output enable signal *2 Open drain control signal Figure C-14 (g) Port 3 Block Diagram (Pin P36) 1355 Reset Internal data bus SCI module Serial transmit enable Serial transmit data TxD4 RDR3 R Q D P37DDR C WDDR3 *1 Reset R Q D P37DR C WDR3 *2 Reset R Q D P37ODR C WODR3 RODR3 P37 RPOR3 Legend WDDR3 WDR3 WODR3 RDR3 RPOR3 RODR3 : Write to P3DDR : Write to P3DR : Write to P3ODR : Read P3DR : Read port 3 : Read P3ODR Notes: *1 Output enable signal *2 Open drain control signal Figure C-14 (h) Port 3 Block Diagram (Pin P37) 1356 C.15 Port 4 Block Diagram RPOR4 P4n Internal data bus A/D converter module Analog input Legend RPOR4 : Read port 4 n = 0 to 7 Figure C-15 Port 4 Block Diagram (Pins P40 to P47) 1357 C.16 Port 7 Block Diagram Reset R Q D P7nDDR C WDDR7 Mode 7 P7n Modes 4 to 6 Reset R Q D P7nDR C WDR7 Bus controller Chip select RDR7 RPOR7 Legend WDDR7 : Write to P7DDR WDR7 : Write to P7DR RDR7 : Read P7DR RPOR7 : Read port 7 n = 0 or 1 Figure C-16 (a) Port 7 Block Diagram (Pins P70 and P71) 1358 Reset Internal data bus Bus controller Chip select R Q D P72DDR C WDDR7 Mode 7 Reset R Q D P72DR C WDR7 P72 * Modes 4 to 6 RDR7 RPOR7 Legend WDDR7 WDR7 RDR7 RPOR7 : Write to P7DDR : Write to P7DR : Read P7DR : Read port 7 Note: * Priority order: (Mode 7) DR output (Modes 4/5/6) Chip select output > DR output Figure C-16 (b) Port 7 Block Diagram (Pin P72) 1359 Reset R Q D P73DDR C WDDR7 Mode 7 Reset R Q D P73DR C WDR7 Bus controller Chip select P73 * Modes 4 to 6 RDR7 RPOR7 Legend WDDR7 WDR7 RDR7 RPOR7 : Write to P7DDR : Write to P7DR : Read P7DR : Read port 7 Note: * Priority order: (Mode 7) DR output (Modes 4/5/6) Chip select output > DR output Figure C-16 (c) Port 7 Block Diagram (Pin P73) 1360 Internal data bus Reset R Q D P74DDR C WDDR7 Reset P74 R Q D P74DR C WDR7 RDR7 RPOR7 System controller Manual reset input enable Manual reset input Legend WDDR7 WDR7 RDR7 RPOR7 : Write to P7DDR : Write to P7DR : Read P7DR : Read port 7 Figure C-16 (d) Port 7 Block Diagram (Pin P74) Internal data bus 1361 Reset R Q D P75DDR C WDDR7 Reset R Q D P75DR C WDR7 P75 * Internal data bus SCI module Serial clock output enable Serial clock Serial clock input enable Serial clock input RDR7 RPOR7 Legend WDDR7 WDR7 RDR7 RPOR7 : Write to P7DDR : Write to P7DR : Read P7DR : Read port 7 Note: * Priority order: Serial clock output > DR output Figure C-16 (e) Port 7 Block Diagram (Pin P75) 1362 Reset Internal data bus SCI module RDR7 Serial receive data enable Serial receive data RxD3 R Q D P76DDR C WDDR7 Reset P76 R Q D P76DR C WDR7 RPOR7 Legend WDDR7 WDR7 RDR7 RPOR7 : Write to P7DDR : Write to P7DR : Read P7DR : Read port 7 Figure C-16 (f) Port 7 Block Diagram (Pin P76) 1363 Reset Internal data bus SCI module Serial transmit enable Serial transmit data TxD3 R Q D P77DDR C WDDR7 Reset R Q D P77DR C WDR7 P77 RDR7 RPOR7 Legend WDDR7 WDR7 RDR7 RPOR7 : Write to P7DDR : Write to P7DR : Read P7DR : Read port 7 Figure C-16 (g) Port 7 Block Diagram (Pin P77) 1364 C.17 Port 9 Block Diagram Internal data bus A/D converter module Analog input RPOR9 P9n Legend RPOR9 : Read port 9 n = 0 to 7 Figure C-17 Port 9 Block Diagram (Pins P90 to P97) 1365 C.18 Port A Block Diagram Reset Internal address bus R Q D PA0PCR C WPCRA RPCRA Reset R Q D PA0DDR C WDDRA *1 Reset R Q D PA0DR C WDRA Reset R Q D PA0ODR C WODRA RODRA PA0 Modes 4 to 6 Address enable *2 RDRA RPORA Legend WDDRA : Write to PADDR WDRA : Write to PADR WODRA : Write to PAODR WPCRA : Write to PAPCR RDRA : Read PADR RPORA : Read port A RODRA : Read PAODR RPCRA : Read PAPCR Notes: *1 Output enable signal *2 Open drain control signal Figure C-18 (a) Port A Block Diagram (Pin PA0) 1366 Internal data bus Reset Internal address bus WPCRA RPCRA Smart card mode signal TxD output TxD output enable Reset R Q D PA1DDR C WDDRA *1 Reset R Q D PA1DR C WDRA Reset R Q D PA1ODR C WODRA RODRA PA1 Modes 4 to 6 Address enable *2 RDRA RPORA Legend WDDRA : Write to PADDR WDRA : Write to PADR WODRA : Write to PAODR WPCRA : Write to PAPCR RDRA : Read PADR RPORA : Read port A RODRA : Read PAODR RPCRA : Read PAPCR Notes: *1 Output enable signal *2 Open drain control signal Figure C-18 (b) Port A Block Diagram (Pin PA1) 1367 Internal data bus R Q D PA1PCR C Reset R Q D PA2PCR C Internal address bus WPCRA RPCRA Internal data bus RxD input enable Reset R Q D PA2DDR C WDDRA *1 Reset R Q D PA2DR C WDRA Reset R Q D PA2ODR C WODRA RODRA PA2 Modes 4 to 6 Address enable *2 RDRA RxD input RPORA Legend WDDRA : Write to PADDR WDRA : Write to PADR WODRA : Write to PAODR WPCRA : Write to PAPCR RDRA : Read PADR RPORA : Read port A RODRA : Read PAODR RPCRA : Read PAPCR Notes: *1 Output enable signal *2 Open drain control signal Figure C-18 (c) Port A Block Diagram (Pin PA2) 1368 Reset R Q D PA3PCR C WPCRA RPCRA SCK input enable SCK output SCK output enable Reset R Q D PA3DDR C WDDRA *1 Reset R Q D PA3DR C WDRA Reset R Q D PA3ODR C WODRA RODRA PA3 Modes 4 to 6 Address enable *2 RDRA SCK input RPORA Legend Notes: *1 Output enable signal *2 Open drain control signal WDDRA : Write to PADDR WDRA : Write to PADR WODRA : Write to PAODR WPCRA : Write to PAPCR RDRA : Read PADR RPORA : Read port A RODRA : Read PAODR RPCRA : Read PAPCR Figure C-18 (d) Port A Block Diagram (Pin PA3) 1369 Internal address bus Internal data bus C.19 Port B Block Diagram Reset Internal address bus R Q D PBnPCR C WPCRB RPCRB (Output compare) TPU output TPU output enable Reset R Q D PBnDDR C WDDRB *1 Reset R Q D PBnDR C WDRB Reset R Q D PBnODR C WODRB RODRB PBn Modes 4 to 6 Address enable *2 RDRB TPU input (Input capture) RPORB Legend WDDRB : Write to PBDDR WDRB : Write to PBDR WODRB : Write to PBODR WPCRB : Write to PBPCR RDRB : Read PBDR RPORB : Read port B RODRB : Read PBODR RPCRB : Read PBPCR n = 0 to 7 Notes: *1 Output enable signal *2 Open drain control signal Figure C-19 Port B Block Diagram (Pins PB0 to PB7) 1370 Internal data bus C.20 Port C Block Diagram Reset Internal data bus R Q D PCnPCR C WPCRC RPCRC Internal address bus Reset R Q D PCnDDR C WDDRC *1 Reset R Q D PCnDR C WDRC *2 Reset R Q D PCnODR C WODRC RODRC PCn Modes 4/5 Mode 6 RDRC RPORC Legend WDDRC : Write to PCDDR WDRC : Write to PCDR WODRC : Write to PCODR WPCRC : Write to PCPCR RDRC : Read PCDR RPORC : Read port C RODRC : Read PCODR RPCRC : Read PCPCR n = 0 to 5 Notes: *1 Output enable signal *2 Open drain control signal Figure C-20 (a) Port C Block Diagram (Pins PC0 to PC5) 1371 Reset R Q D PCnPCR C WPCRC RPCRC Internal address bus Reset R Q D PCnDDR C WDDRC *1 Reset R Q D PCnDR C WDRC *2 Reset R Q D PCnODR C WODRC RODRC PCn Modes 4/5 Mode 6 RDRC RPORC Legend WDDRC : Write to PCDDR WDRC : Write to PCDR WODRC : Write to PCODR WPCRC : Write to PCPCR RDRC : Read PCDR RPORC : Read port C RODRC : Read PCODR RPCRC : Read PCPCR n = 6 or 7 Notes: *1 Output enable signal *2 Open drain control signal Figure C-20 (b) Port C Block Diagram (Pins PC6 and PC7) 1372 Internal data bus C.21 Port D Block Diagram Reset R Q D PDnPCR C WPCRD RPCRD Internal upper data bus Reset R Q D PDnDDR C WDDRD Reset R Q D PDnDR C WDRD External address write PDn Mode 7 Modes 4 to 6 External address upper write RDRD RPORD External address upper read Legend WDDRD : Write to PDDDR WDRD : Write to PDDR WPCRD : Write to PDPCR : Read PDDR RDRD RPORD : Read port D RPCRD : Read PDPCR n = 0 to 7 Figure C-21 Port D Block Diagram (Pins PD0 to PD7) 1373 C.22 Port E Block Diagram Reset Internal lower data bus R Q D PEnPCR C WPCRE RPCRE Internal upper data bus Reset R Q D PEnDDR C WDDRE Reset R Q D PEnDR C WDRE External address write PEn Mode 7 Modes 4 to 6 RDRE RPORE External addres lower read Legend WDDRE : Write to PEDDR WDRE : Write to PEDR WPCRE : Write to PEPCR RDRE : Read PEDR RPORE : Read port E RPCRE : Read PEPCR n = 0 to 7 Figure C-22 Port E Block Diagram (Pins PE0 to PE7) 1374 C.23 Port F Block Diagram Reset R Q D PF0DDR C WDDRF Modes 4 to 6 Reset PF0 R Q D PF0DR C WDRF Internal data bus Bus controller BRLE bit Bus request input IRQ interrupt input RDRF RPORF Legend WDDRF WDRF RDRF RPORF : Write to PFDDR : Write to PFDR : Read PFDR : Read port F Figure C-23 (a) Port F Block Diagram (Pin PF0) 1375 Reset Internal data bus Bus controller BRLE output Bus request acknowledge output R Q D PF1DDR C WDDRF Reset R Q D PF1DR C WDRF Modes 4 to 6 PF1 RDRF RPORF Legend WDDRF WDRF RDRF RPORF : Write to PFDDR : Write to PFDR : Read PFDR : Read port F Figure C-23 (b) Port F Block Diagram (Pin PF1) 1376 Reset R Q D PF2DDR C WDDRF Reset Modes 4 to 6 PF2 Modes 4 to 6 R Q D PF2DR C WDRF Modes 4 to 6 Internal data bus Bus controller Wait enable Bus request output enable Bus request output Wait input RDRF RPORF Legend WDDRF WDRF RDRF RPORF : Write to PFDDR : Write to PFDR : Read PFDR : Read port F Figure C-23 (c) Port F Block Diagram (Pin PF2) 1377 Reset R Q D PF3DDR C WDDRF Reset R Q D PF3DR C WDRF Internal data bus Bus controller LWR output RDRF ADTRG input IRQ interrupt input Legend WDDRF WDRF RDRF RPORF PF3 Modes 4 to 6 RPORF : Write to PFDDR : Write to PFDR : Read PFDR : Read port F Figure C-23 (d) Port F Block Diagram (Pin PF3) 1378 Reset R Q D PF4DDR C WDDRF Reset R Q D PF4DR C WDRF Internal data bus Bus controller HWR output RDRF PF4 Modes 4 to 6 RPORF Legend WDDRF WDRF RDRF RPORF : Write to PFDDR : Write to PFDR : Read PFDR : Read port F Figure C-23 (e) Port F Block Diagram (Pin PF4) 1379 Reset R Q D PF5DDR C WDDRF Reset R Q D PF5DR C WDRF PF5 Modes 4 to 6 RDRF RPORF Legend WDDRF WDRF RDRF RPORF : Write to PFDDR : Write to PFDR : Read PFDR : Read port F Figure C-23 (f) Port F Block Diagram (Pin PF5) 1380 Internal data bus Bus controller RD output Reset R Q D PF6DDR C WDDRF Reset R Q D PF6DR C WDRF PF6 Modes 4 to 6 RDRF RPORF Legend WDDRF WDRF RDRF RPORF : Write to PFDDR : Write to PFDR : Read PFDR : Read port F Figure C-23 (g) Port F Block Diagram (Pin PF6) Internal data bus Bus controller AS output 1381 Modes 4 to 6 Reset Internal data bus o S* R Q D D PF7DDR C WDDRF Reset R Q D PF7DR C WDRF PF7 RDRF RPORF Legend WDDRF WDRF RDRF RPORF Note: * Set priority : Write to PFDDR : Write to PFDR : Read PFDR : Read port F Figure C-23 (h) Port F Block Diagram (Pin PF7) 1382 C.24 Port G Block Diagram Reset R Q D PG0DDR C WDDRG Reset PG0 R Q D PG0DR C WDRG RDRG RPORG Legend WDDRG : Write to PGDDR WDRG : Write to PGDR RDRG : Read PGDR RPORG : Read port G Figure C-24 (a) Port G Block Diagram (Pin PG0) Internal data bus IRQ interrupt input 1383 Reset Internal data bus Bus controller Chip select R Q D PG1DDR C WDDRG Reset R Q D PG1DR C WDRG PG1 Modes 4 to 6 RDRG RPORG Legend WDDRG : Write to PGDDR WDRG : Write to PGDR RDRG : Read PGDR RPORG : Read port G Figure C-24 (b) Port G Block Diagram (Pin PG1) 1384 Reset Internal data bus Bus controller Chip select RDRG R Q D PGnDDR C WDDRG Reset R Q D PGnDR C WDRG PGn Modes 4 to 6 RPORG Legend WDDRG : Write to PGDDR WDRG : Write to PGDR RDRG : Read PGDR RPORG : Read port G n = 2 or 3 Figure C-24 (c) Port G Block Diagram (Pins PG2 and PG3) 1385 Modes 4/5 Modes 6/7 Reset WDDRG Reset R Q D PG4DR C WDRG PG4 Modes 4 to 6 Internal data bus Bus controller Chip select S R Q D PG4DDR C RDRG RPORG Legend WDDRG : Write to PGDDR WDRG : Write to PGDR RDRG : Read PGDR RPORG : Read port G Figure C-24 (d) Port G Block Diagram (Pin PG4) 1386 Appendix D Pin States D.1 Port States in Each Mode Table D-1 lists the I/O port states in each processing mode for the H8S/2633, H8S/2632, H8S/2631, H8S/2633F, and H8S/2633R. Table D-2 lists the I/O port states in each processing mode for the H8S/2695. Table D-1 I/O Port States in Each Processing State (H8S/2633, H8S/2632, H8S/2631, H8S/2633F, H8S/2633R) Program Execution State Sleep Mode I/O port I/O port Input port I/O port [DDR = 0] Input port [DDR = 1] CS7 to CS4 Input port [Address output] A19 to A17 [Otherwise] I/O port MCU Port Name Operating Pin Name Mode Port 1 Port 3 Port 4 P73/CS7 P72/CS6 P71/CS5 P70/CS4 4 to 7 4 to 7 4 to 7 7 4 to 6 PowerOn Reset T T T T T Manual Reset kept kept T kept kept Hardware Software Standby Standby Mode Mode T T T T T kept kept T kept Bus Release State kept kept T kept [DDR * OPE = 0] T T [DDR * OPE = 1] H T [Address output, OPE = 0] T [Address output, OPE = 1] kept [Otherwise] kept kept [Address output, OPE = 0] T [Address output, OPE = 1] kept [Otherwise] kept kept T [Address output] T [Otherwise] kept Port 9 Port A 4 to 7 4, 5 6 T L T T kept kept T T T 7 Port B 4, 5 6 T L T kept kept kept T T T kept [Address output] T [Otherwise] kept I/O port [Address output] A15 to A8 [Otherwise] I/O port 7 T kept T kept I/O port 1387 MCU Port Name Operating Pin Name Mode Port C 4, 5 PowerOn Reset L Manual Reset kept Hardware Software Standby Standby Mode Mode T [OPE = 0] T [OPE = 1] kept [DDR = 1, OPE = 0] T [DDR = 1, OPE = 1] kept [DDR = 0] kept kept T kept kept T kept [DDR = 0] T [DDR = 1] H [DDR = 0] T [DDR = 1] H [OPE = 0] T [LCAS output, OPE = 1] LCAS [AS output, OPE = 1] H kept Bus Release State T Program Execution State Sleep Mode A7 to A0 6 T kept T T [DDR = 1] A7 to A0 [DDR = 0] I/O port 7 Port D 4 to 6 7 Port E 4 to 6 8-bit bus T T T T kept T* kept kept T* kept kept T T T T T T T kept T kept kept T kept kept I/O port Data bus I/O port I/O port Data bus I/O port [DDR = 0] T [DDR = 1] Clock output [DDR = 0] T [DDR = 1] Clock output [LCAS output] LCAS [Otherwise] AS 16-bit T bus 7 PF7/o 4 to 6 T Clock output 7 T kept T kept PF6/AS LCAS 4 to 6 H H T T 7 T kept T kept I/O port 1388 MCU Port Name Operating Pin Name Mode PF5/RD PF4/HWR PF3/LWR/ ADTRG/ IRQ3 4 to 6 PowerOn Reset H Manual Reset H Hardware Software Standby Standby Mode Mode T [OPE = 0] T [OPE = 1] H kept [LCAS output, OPE = 0] T [LCAS output, OPE = 1] LCAS [Otherwise] kept kept [BRLE = 0, BUZZE = 0] I/O port [BRLE = 0, BUZZE = 1] H [BRLE = 1] H kept [BRLE = 0] kept [BRLE = 1] T kept [DDR = 1, OPE = 0] T [DDR = 1, OPE = 1] H [DDR = 0] T kept Bus Release State T Program Execution State Sleep Mode RD, HWR, LWR 7 T T kept [CAS output] H [Otherwise] kept T T kept [LCAS output] T [BREQOE = 1] BREQO [WAITE = 1] T I/O port [LCAS output] LCAS [BREQOE = 1] BREQO [WAITE = 1] WAIT PF2/LCAS/ 4 to 6 WAIT/ BREQO 7 PF1/BACK/ 4 to 6 BUZZ T T kept kept T T kept [BRLE = 0, BUZZE = 0] I/O port [BRLE = 0, BUZZE = 1] H [BRLE = 1] L kept T I/O port [BRLE = 0, BUZZE = 0] I/O port [BRLE = 0, BUZZE = 1] BUZZ [BRLE = 1] BACK I/O port [BRLE = 0] I/O port [BRLE = 1] BREQO I/O port [DDR = 0] Input port [DDR = 1] CS0 7 PF0/BREQ/ 4 to 6 IRQ2 T T kept kept T T 7 PG4/CS0 4, 5 6 T H T kept kept T T kept T 7 T kept T kept I/O port 1389 MCU Port Name Operating Pin Name Mode PG3/CS1 PG2/CS2 4 to 6 PowerOn Reset T Manual Reset kept Hardware Software Standby Standby Mode Mode T [DDR = 1, OPE = 0] T [DDR = 1, OPE = 1] H [DDR = 0] T kept [DDR = 1, OPE = 0] T [DDR = 1, OPE = 1] H [DDR = 0] T kept [DRAME = 0] kept [DRAME = 1, OPE = 1] CAS [DRAME = 1, OPE = 1] T kept Bus Release State T Program Execution State Sleep Mode [DDR = 0] Input port [DDR = 1] CS2 to CS1 7 PG1/CS3/ OE/IRQ7 4 to 6 T T kept kept T T kept T I/O port [DDR = 0] Input port [OE = 0, DDR = 1] CS3 [OE = 1, DDR = 1] OE I/O port [DRAME = 0] I/O port [DRAME = 1] CAS 7 PG0/CAS/ IRQ6 4 to 6 T T kept kept T T kept T 7 T kept T kept I/O port Legend: H L T kept DDR OPE WAITE BRLE BREQOE DRAME LCASE : High level : Low level : High impedance : Input port becomes high-impedance, output port retains state : Data direction register : Output port enable : Wait input enable : Bus release enable : BREQO pin enable : DRAM space setting : DRAM space setting, CW2 = LCASS = 0 Note: * Indicates the state after completion of the executing bus cycle. 1390 Table D-2 I/O Port States in Each Processing State (H8S/2695) Program Execution State Sleep Mode I/O port I/O port Input port I/O port [DDR = 0] Input port [DDR = 1] CS7 to CS4 Input port [Address output] A19 to A17 [Otherwise] I/O port MCU Port Name Operating Pin Name Mode Port 1 Port 3 Port 4 P73/CS7 P72/CS6 P71/CS5 P70/CS4 4 to 7 4 to 7 4 to 7 7 4 to 6 PowerOn Reset T T T T T Manual Reset kept kept T kept kept Hardware Software Standby Standby Mode Mode T T T T T kept kept T kept Bus Release State kept kept T kept [DDR * OPE = 0] T T [DDR * OPE = 1] H T [Address output, OPE = 0] T [Address output, OPE = 1] kept [Otherwise] kept kept [Address output, OPE = 0] T [Address output, OPE = 1] kept [Otherwise] kept kept T [Address output] T [Otherwise] kept Port 9 Port A 4 to 7 4, 5 6 T L T T kept kept T T T 7 Port B 4, 5 6 T L T kept kept kept T T T kept [Address output] T [Otherwise] kept I/O port [Address output] A15 to A8 [Otherwise] I/O port 7 T kept T kept I/O port 1391 MCU Port Name Operating Pin Name Mode Port C 4, 5 PowerOn Reset L Manual Reset kept Hardware Software Standby Standby Mode Mode T [OPE = 0] T [OPE = 1] kept [DDR = 1, OPE = 0] T [DDR = 1, OPE = 1] kept [DDR = 0] kept kept T kept kept T kept [DDR = 0] T [DDR = 1] H [DDR = 0] T [DDR = 1] H [OPE = 0] T [AS output, OPE = 1] H kept Bus Release State T Program Execution State Sleep Mode A7 to A0 6 T kept T T [DDR = 1] A7 to A0 [DDR = 0] I/O port 7 Port D 4 to 6 7 Port E 4 to 6 8-bit bus T T T T kept T* kept kept T* kept kept T T T T T T T kept T kept kept T kept kept I/O port Data bus I/O port I/O port Data bus I/O port [DDR = 0] T [DDR = 1] Clock output [DDR = 0] T [DDR = 1] Clock output AS 16-bit T bus 7 PF7/o 4 to 6 T Clock output 7 T kept T kept PF6/AS 4 to 6 H H T T 7 T kept T kept I/O port 1392 MCU Port Name Operating Pin Name Mode PF5/RD PF4/HWR PF3/LWR/ ADTRG/ IRQ3 4 to 6 PowerOn Reset H Manual Reset H Hardware Software Standby Standby Mode Mode T [OPE = 0] T [OPE = 1] H kept kept Bus Release State T Program Execution State Sleep Mode RD, HWR, LWR 7 T T kept kept T T kept [BREQOE = 1] BREQO [WAITE = 1] T kept [BRLE = 0] I/O port [BRLE = 1] L kept T I/O port [BREQOE = 1] BREQO [WAITE = 1] WAIT I/O port [BRLE = 0] I/O port [BRLE = 1] BACK I/O port [BRLE = 0] I/O port [BRLE = 1] BREQO I/O port [DDR = 0] Input port [DDR = 1] CS0 PF2/WAIT/ 4 to 6 BREQO 7 PF1/BACK 4 to 6 T T kept kept T T kept [BRLE = 0] I/O port [BRLE = 1] H kept [BRLE = 0] kept [BRLE = 1] T kept [DDR = 1, OPE = 0] T [DDR = 1, OPE = 1] H [DDR = 0] T kept 7 PF0/BREQ/ 4 to 6 IRQ2 T T kept kept T T 7 PG4/CS0 4, 5 6 T H T kept kept T T kept T 7 T kept T kept I/O port 1393 MCU Port Name Operating Pin Name Mode PG3/CS1 PG2/CS2 4 to 6 PowerOn Reset T Manual Reset kept Hardware Software Standby Standby Mode Mode T [DDR = 1, OPE = 0] T [DDR = 1, OPE = 1] H [DDR = 0] T kept [DDR = 1, OPE = 0] T [DDR = 1, OPE = 1] H [DDR = 0] T kept kept kept Bus Release State T Program Execution State Sleep Mode [DDR = 0] Input port [DDR = 1] CS2 to CS1 7 PG1/CS3/ IRQ7 4 to 6 T T kept kept T T kept T I/O port [DDR = 0] Input port [DDR = 1] CS3 7 PG0/IRQ6 4 to 6 7 T T T kept kept kept T T T kept T kept I/O port I/O port I/O port Legend: H L T kept DDR OPE WAITE BRLE BREQOE : High level : Low level : High impedance : Input port becomes high-impedance, output port retains state : Data direction register : Output port enable : Wait input enable : Bus release enable : BREQO pin enable Note: * Indicates the state after completion of the executing bus cycle. 1394 Appendix E Timing of Transition to and Recovery from Hardware Standby Mode Timing of Transition to Hardware Standby Mode (1) To retain RAM contents with the RAME bit set to 1 in SYSCR, drive the RES signal low at least 10 states before the STBY signal goes low, as shown below. RES must remain low until STBY signal goes low (delay from STBY low to RES high: 0 ns or more). STBY t110tcyc RES t20ns Figure E-1 Timing of Transition to Hardware Standby Mode (2) To retain RAM contents with the RAME bit cleared to 0 in SYSCR, or when RAM contents do not need to be retained, RES does not have to be driven low as in (1). Timing of Recovery from Hardware Standby Mode Drive the RES signal low and the NMI signal high approximately 100 ns or more before STBY goes high to execute a power-on reset. STBY t100ns RES tOSC tNMIRH NMI Figure E-2 Timing of Recovery from Hardware Standby Mode 1395 Appendix F Product Code Lineup Table F.1 H8S/2633 Series Product Code Lineup Product Type H8S/2633 F-ZTATTM Product Code HD64F2633 Mark Code HD64F2633F HD64F2633TE Mask ROM HD6432633 HD6432633F HD6432633TE H8S/2632 HD6432632 HD6432632F HD6432632TE H8S/2631 HD6432631 HD6432631F HD6432631TE H8S/2633R F-ZTATTM HD64F2633R HD64F2633RF HD64F2633RTE H8S/2695 Mask ROM HD6432695 HD6432695F Package (Hitachi Package Code) 128-pin QFP (FP-128B) 120-pin TQFP (TFP-120) 128-pin QFP (FP-128B) 120-pin TQFP (TFP-120) 128-pin QFP (FP-128B) 120-pin TQFP (TFP-120) 128-pin QFP (FP-128B) 120-pin TQFP (TFP-120) 128-pin QFP (FP-128B) 120-pin TQFP (TFP-120) 128-pin QFP (FP-128B) 1396 Appendix G Package Dimensions Figures G-1 and G-2 show the TFP-120 and FP-128 package dimensions of the H8S/2633 Series, H8S/2633F, H8S/2633R, and H8S/2695. Unit: mm 16.0 0.2 14 90 91 61 60 16.0 0.2 120 1 *0.17 0.05 0.15 0.04 30 31 0.4 1.00 0.07 M 1.2 *0.17 0.05 0.15 0.04 1.20 Max 1.0 0.5 0.1 0 - 8 0.10 0.10 0.10 *Dimension including the plating thickness Base material dimension Hitachi Code JEDEC JEITA Mass (reference value) TFP-120 - Conforms 0.5 g Figure G-1 TFP-120 Package Dimensions 1397 22.0 0.2 20 102 103 65 64 Unit: mm 16.0 0.2 14 128 1 *0.22 0.05 0.20 0.04 0.10 M 0.75 38 39 3.15 Max 0.5 *0.17 0.05 0.15 0.04 2.70 1.0 0.75 +0.15 -0.10 0.10 0.10 0.5 0.2 Hitachi Code JEDEC JEITA Mass (reference value) FP-128B 0 - 8 - *Dimension including the plating thickness Base material dimension Conforms 1.7 g Figure G-2 FP-128B Package Dimensions 1398 H8S/2633 Series, H8S/2633 F-ZTATTM, H8S/2633R F-ZTATTM, H8S/2695 Hardware Manual Publication Date: 1st Edition, December 1998 4th Edition, August 2002 Published by: Business Operation Division Semiconductor & Integrated Circuits Hitachi, Ltd. Edited by: Technical Documentation Group Hitachi Kodaira Semiconductor Co., Ltd. Copyright (c) Hitachi, Ltd., 1998. All rights reserved. Printed in Japan. |
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